[feat](trx-rs): make spectrum affordable over a slow link

Spectrum dominates the server↔client connection, and all three things that
govern its cost were working against a poor link.

**It was polled, one round trip per frame.** The client asked for a frame every
50 ms on a dedicated connection and waited for the reply, so the frame rate was
capped at 1/RTT — on a 200 ms link, five frames a second no matter what was
configured.  Add SubscribeSpectrum alongside the existing SubscribeMeter: the
server pushes frames from a per-rig broadcast that rig_task fills only while
somebody is subscribed.  A server too old to know the command answers with an
error and leaves the connection usable, so the client falls back to polling on
the same connection without reconnecting.

**Bins were JSON floats.** 1024 bins spelled out as decimal text is around
10 KB a frame, ~200 KB/s at full rate — while the very next hop, client to
browser, already sends the same information as base64 i8 in about 1.4 KB.  Bins
now travel base64-encoded whole dBFS, the resolution the display draws at
anyway.  Decoding still accepts the old array form.

**Nothing was tunable.** [sdr].spectrum_fft_size and [sdr].spectrum_interval_ms
replace the compile-time FFT size and cadence; [[remotes]].spectrum_interval_ms
lets the client ask for less.  512 bins at 5 frames/s is roughly 3.5 KB/s
against roughly 200 KB/s before.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SyX26FCpMQxiBoC7r5K1A7
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/app.js

@@ -885,7 +885,7 @@ function elementById(id) {
       if (restoreFocus) more.focus();
     };
     api.closeMobileOverlays = closeMore;
-    ["satellites", "statistics", "recorder", "settings", "about"].forEach((tabName) => {
+    ["statistics", "recorder", "settings", "about"].forEach((tabName) => {
       const source = nav.querySelector(`[data-tab="${tabName}"]`);
       if (!source) return;
       const item = document.createElement("button");
@@ -1529,7 +1529,6 @@ var TAB_ORDER = [
   "bookmarks",
   "digital-modes",
   "map",
-  "satellites",
   "statistics",
   "recorder",
   "settings",
@@ -1540,7 +1539,6 @@ var TAB_PATHS = {
   bookmarks: "/bookmarks",
   "digital-modes": "/digital-modes",
   map: "/map",
-  satellites: "/satellites",
   statistics: "/statistics",
   recorder: "/recorder",
   settings: "/settings",
@@ -1758,7 +1756,6 @@ var pluginGroups = {
   ],
   "map-data": ["/map-core.js", "/ais.js", "/vdes.js", "/aprs.js", "/hf-aprs.js"],
   map: ["/map-core.js", "/ais.js", "/vdes.js", "/aprs.js", "/hf-aprs.js", "/sat.js", "/sat-scheduler.js"],
-  satellites: ["/satellite-predictions.js"],
   statistics: ["/map-core.js"],
   bookmarks: ["/bookmarks.js"],
   recorder: [],
@@ -5847,7 +5844,6 @@ function _initMapWhenReady() {
 }
 function navigateToTab(name, options = {}) {
   window.trxUi?.closeMobileOverlays?.();
-  const leavingSatellites = _activeTab === "satellites" && name !== "satellites";
   const { updateHistory = true, replaceHistory = false } = options;
   if (authEnabled && !authRole && name !== "main") {
     showAuthGate(false);
@@ -5877,10 +5873,7 @@ function navigateToTab(name, options = {}) {
     updateTabHistory(name, replaceHistory);
   }
   scheduleSpectrumLayout();
-  if (leavingSatellites) window.clearSatPredictionDom?.();
+  void loadPluginsForTab(name).catch((error) => {
-  void loadPluginsForTab(name).then(() => {
-    if (name === "satellites") window.refreshSatPredictions?.();
-  }).catch((error) => {
     console.error(error);
   });
   if (name === "map") {
@@ -6327,6 +6320,9 @@ function _wireSubTabBar(bar) {
         if (window.refreshCwTonePicker) window.refreshCwTonePicker();
       });
     }
+    if (btn.dataset.subtab !== "sat" && typeof window.clearSatPredictionDom === "function") {
+      window.clearSatPredictionDom();
+    }
   });
 }
 document.querySelectorAll(".sub-tab-bar").forEach(_wireSubTabBar);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/sat.js

@@ -8,6 +8,7 @@ var satDom = {
   status: document.getElementById("sat-status"),
   liveView: document.getElementById("sat-live-view"),
   historyView: document.getElementById("sat-history-view"),
+  predictionsView: document.getElementById("sat-predictions-view"),
   liveLatest: document.getElementById("sat-live-latest"),
   historyList: document.getElementById("sat-history-list"),
   historyCount: document.getElementById("sat-history-count"),
@@ -16,12 +17,29 @@ var satDom = {
   typeFilter: document.getElementById("sat-type-filter"),
   lrptState: document.getElementById("sat-lrpt-state"),
   viewLiveBtn: document.getElementById("sat-view-live"),
-  viewHistoryBtn: document.getElementById("sat-view-history")
+  viewHistoryBtn: document.getElementById("sat-view-history"),
+  viewPredBtn: document.getElementById("sat-view-predictions"),
+  predFilter: document.getElementById("sat-pred-filter"),
+  predMinEl: document.getElementById("sat-pred-min-el"),
+  predCategory: document.getElementById("sat-pred-category"),
+  predCurrentList: document.getElementById("sat-pred-current-list"),
+  predUpcomingList: document.getElementById("sat-pred-list"),
+  predCurrentSec: document.getElementById("sat-pred-current-section"),
+  predUpcomingSec: document.getElementById("sat-pred-upcoming-section"),
+  predStatus: document.getElementById("sat-pred-status")
 };
 var satImageHistory = [];
 var SAT_MAX_IMAGES = 100;
+var SAT_PRED_PAGE_SIZE = 50;
+var satPredShowAll = false;
 var satFilterText = "";
 var satActiveView = "live";
+var satPredData = [];
+var satPredFilterText = "";
+var satPredMinEl = 0;
+var satPredCategory = "all";
+var satPredSatCount = 0;
+var satPredCountdownTimer = null;
 function scheduleSatUi(key, job) {
   if (typeof satWindow.trxScheduleUiFrameJob === "function") {
     satWindow.trxScheduleUiFrameJob(key, job);
@@ -30,19 +48,37 @@ function scheduleSatUi(key, job) {
   job();
 }
 function switchSatView(view) {
+  const leavingPredictions = satActiveView === "predictions" && view !== "predictions";
   satActiveView = view;
   if (satDom.liveView) satDom.liveView.style.display = view === "live" ? "" : "none";
   if (satDom.historyView) satDom.historyView.style.display = view === "history" ? "" : "none";
+  if (satDom.predictionsView) satDom.predictionsView.style.display = view === "predictions" ? "" : "none";
   if (satDom.viewLiveBtn) satDom.viewLiveBtn.classList.toggle("sat-view-active", view === "live");
   if (satDom.viewHistoryBtn) satDom.viewHistoryBtn.classList.toggle("sat-view-active", view === "history");
-  if (view === "history") renderSatHistoryTable();
+  if (satDom.viewPredBtn) satDom.viewPredBtn.classList.toggle("sat-view-active", view === "predictions");
+  if (leavingPredictions) clearPredictionDom();
+  if (view === "history") {
+    renderSatHistoryTable();
+  } else if (view === "predictions") {
+    satPredShowAll = false;
+    void loadSatPredictions();
+  }
 }
+function clearPredictionDom() {
+  stopCountdownTimer();
+  if (satDom.predCurrentList) satDom.predCurrentList.innerHTML = "";
+  if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+}
+satWindow.clearSatPredictionDom = clearPredictionDom;
 satDom.viewLiveBtn?.addEventListener("click", () => {
   switchSatView("live");
 });
 satDom.viewHistoryBtn?.addEventListener("click", () => {
   switchSatView("history");
 });
+satDom.viewPredBtn?.addEventListener("click", () => {
+  switchSatView("predictions");
+});
 var lastSatLrptOn = null;
 satWindow.updateSatLiveState = function(update) {
   if (!satDom.lrptState) return;
@@ -239,6 +275,200 @@ document.getElementById("settings-clear-sat-history")?.addEventListener("click",
     }
   })();
 });
+function azToCardinal(deg) {
+  const dirs = ["N", "NE", "E", "SE", "S", "SW", "W", "NW"];
+  return dirs[Math.round(deg / 45) % 8] ?? "N";
+}
+function formatPredTime(ms) {
+  const d = new Date(ms);
+  const now = /* @__PURE__ */ new Date();
+  const dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
+  const day = d.getUTCDay() !== now.getUTCDay() ? `${dayNames[d.getUTCDay()] ?? ""} ` : "";
+  const hh = String(d.getUTCHours()).padStart(2, "0");
+  const mm = String(d.getUTCMinutes()).padStart(2, "0");
+  return `${day}${hh}:${mm}`;
+}
+function formatPredDuration(s) {
+  if (s >= 60) return `${Math.round(s / 60)} min`;
+  return `${s}s`;
+}
+function formatCountdown(ms) {
+  const totalSec = Math.max(0, Math.floor(ms / 1e3));
+  const m = Math.floor(totalSec / 60);
+  const s = totalSec % 60;
+  return `${m}:${String(s).padStart(2, "0")}`;
+}
+function elevationClass(deg) {
+  if (deg >= 45) return "sat-pred-el-high";
+  if (deg >= 10) return "sat-pred-el-mid";
+  return "sat-pred-el-low";
+}
+function stopCountdownTimer() {
+  if (satPredCountdownTimer) {
+    clearInterval(satPredCountdownTimer);
+    satPredCountdownTimer = null;
+  }
+}
+function startCountdownTimer(container) {
+  const countdownEls = container?.querySelectorAll(".sat-pred-col-countdown") ?? [];
+  if (countdownEls.length === 0) return;
+  satPredCountdownTimer = setInterval(() => {
+    if (satActiveView !== "predictions") {
+      stopCountdownTimer();
+      return;
+    }
+    const n = Date.now();
+    let anyActive = false;
+    for (const el of countdownEls) {
+      const los = Number.parseInt(el.dataset.los ?? "0", 10);
+      const rem = los - n;
+      if (rem > 0) {
+        el.textContent = formatCountdown(rem);
+        anyActive = true;
+      } else {
+        el.textContent = "0:00";
+      }
+    }
+    if (!anyActive) {
+      stopCountdownTimer();
+      renderSatPredictions(getFilteredPredictions());
+    }
+  }, 1e3);
+}
+function buildCurrentPassRow(pass, now) {
+  const row = document.createElement("div");
+  row.className = "sat-pred-row-current";
+  const dir = `${azToCardinal(pass.azimuth_aos_deg)} → ${azToCardinal(pass.azimuth_los_deg)}`;
+  const remaining = Math.max(0, pass.los_ms - now);
+  row.innerHTML = [
+    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
+    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}°</span>`,
+    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
+    `<span class="sat-pred-col-time">${formatPredTime(pass.los_ms)}</span>`,
+    `<span class="sat-pred-col-countdown" data-los="${pass.los_ms}">${formatCountdown(remaining)}</span>`,
+    `<span class="sat-pred-col-dir">${dir}</span>`
+  ].join("");
+  return row;
+}
+function buildUpcomingPassRow(pass) {
+  const row = document.createElement("div");
+  row.className = "sat-pred-row";
+  const dir = `${azToCardinal(pass.azimuth_aos_deg)} → ${azToCardinal(pass.azimuth_los_deg)}`;
+  row.innerHTML = [
+    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
+    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
+    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}°</span>`,
+    `<span class="sat-pred-col-dur">${formatPredDuration(pass.duration_s)}</span>`,
+    `<span class="sat-pred-col-dir">${dir}</span>`
+  ].join("");
+  return row;
+}
+function getFilteredPredictions() {
+  let items = satPredData;
+  if (satPredCategory !== "all") items = items.filter((p) => p.category === satPredCategory);
+  if (satPredMinEl > 0) items = items.filter((p) => p.max_elevation_deg >= satPredMinEl);
+  if (satPredFilterText) items = items.filter((p) => p.satellite.toUpperCase().includes(satPredFilterText));
+  return items;
+}
+function applyPredFilters() {
+  renderSatPredictions(getFilteredPredictions());
+}
+var satPredictionFilter = satDom.predFilter;
+satPredictionFilter?.addEventListener("input", () => {
+  satPredFilterText = satPredictionFilter.value.trim().toUpperCase();
+  applyPredFilters();
+});
+var satPredictionMinElevation = satDom.predMinEl;
+satPredictionMinElevation?.addEventListener("change", () => {
+  satPredMinEl = Number.parseInt(satPredictionMinElevation.value, 10) || 0;
+  applyPredFilters();
+});
+var satPredictionCategory = satDom.predCategory;
+satPredictionCategory?.addEventListener("change", () => {
+  satPredCategory = satPredictionCategory.value;
+  applyPredFilters();
+});
+function renderSatPredictions(passes, error) {
+  stopCountdownTimer();
+  if (error) {
+    if (satDom.predCurrentList) satDom.predCurrentList.innerHTML = "";
+    if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+    if (satDom.predCurrentSec) satDom.predCurrentSec.style.display = "none";
+    if (satDom.predUpcomingSec) satDom.predUpcomingSec.style.display = "none";
+    if (satDom.predStatus) satDom.predStatus.textContent = error;
+    return;
+  }
+  if (!Array.isArray(passes) || passes.length === 0) {
+    if (satDom.predCurrentList) satDom.predCurrentList.innerHTML = "";
+    if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+    if (satDom.predCurrentSec) satDom.predCurrentSec.style.display = "none";
+    if (satDom.predUpcomingSec) satDom.predUpcomingSec.style.display = "none";
+    if (satDom.predStatus) satDom.predStatus.textContent = "No passes found in the next 24 hours.";
+    return;
+  }
+  const now = Date.now();
+  const current = passes.filter((p) => p.aos_ms <= now && p.los_ms > now);
+  const upcoming = passes.filter((p) => p.aos_ms > now);
+  if (satDom.predCurrentSec) satDom.predCurrentSec.style.display = current.length > 0 ? "" : "none";
+  if (satDom.predCurrentList) {
+    if (current.length === 0) {
+      satDom.predCurrentList.innerHTML = "";
+    } else {
+      const frag = document.createDocumentFragment();
+      for (const pass of current) frag.appendChild(buildCurrentPassRow(pass, now));
+      satDom.predCurrentList.replaceChildren(frag);
+    }
+  }
+  const upcomingLimit = satPredShowAll ? upcoming.length : SAT_PRED_PAGE_SIZE;
+  const visibleUpcoming = upcoming.slice(0, upcomingLimit);
+  const hiddenCount = upcoming.length - visibleUpcoming.length;
+  if (satDom.predUpcomingSec) satDom.predUpcomingSec.style.display = upcoming.length > 0 ? "" : "none";
+  if (satDom.predUpcomingList) {
+    const frag = document.createDocumentFragment();
+    for (const pass of visibleUpcoming) frag.appendChild(buildUpcomingPassRow(pass));
+    if (hiddenCount > 0) {
+      const moreRow = document.createElement("div");
+      moreRow.className = "sat-pred-row";
+      moreRow.style.cursor = "pointer";
+      moreRow.style.textAlign = "center";
+      moreRow.innerHTML = `<span style="grid-column:1/-1;color:var(--accent);font-size:0.82rem;">Show ${hiddenCount} more passes…</span>`;
+      moreRow.addEventListener("click", () => {
+        satPredShowAll = true;
+        renderSatPredictions(getFilteredPredictions());
+      });
+      frag.appendChild(moreRow);
+    }
+    satDom.predUpcomingList.replaceChildren(frag);
+  }
+  if (satDom.predStatus) {
+    let text = `${current.length} active · ${upcoming.length} upcoming · times in UTC`;
+    if (satPredSatCount > 0) text += ` · ${satPredSatCount} satellites tracked`;
+    satDom.predStatus.textContent = text;
+  }
+  if (current.length > 0 && satActiveView === "predictions") {
+    startCountdownTimer(satDom.predCurrentList);
+  }
+}
+async function loadSatPredictions() {
+  if (satDom.predStatus) satDom.predStatus.textContent = "Loading predictions…";
+  if (satDom.predCurrentList) satDom.predCurrentList.innerHTML = "";
+  if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+  try {
+    const resp = await fetch("/sat_passes");
+    if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
+    const data = await resp.json();
+    satPredSatCount = data.satellite_count || 0;
+    if (data.error) {
+      satPredData = [];
+      renderSatPredictions([], data.error);
+    } else {
+      satPredData = data.passes || [];
+      renderSatPredictions(getFilteredPredictions());
+    }
+  } catch (error) {
+    renderSatPredictions([], `Failed to load predictions: ${error instanceof Error ? error.message : String(error)}`);
+  }
+}
 satWindow.satShowOnMap = function(south, west, north, east) {
   if (typeof satWindow.enableMapSourceFilter === "function") {
     satWindow.enableMapSourceFilter("sat");

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/satellite-predictions.js

@@ -1,228 +0,0 @@
-// src/plugins/satellite-predictions.ts
-var predWindow = window;
-var dom = {
-  page: document.getElementById("tab-satellites"),
-  filter: document.getElementById("sat-pred-filter"),
-  minElevation: document.getElementById("sat-pred-min-el"),
-  category: document.getElementById("sat-pred-category"),
-  currentList: document.getElementById("sat-pred-current-list"),
-  upcomingList: document.getElementById("sat-pred-list"),
-  currentSection: document.getElementById("sat-pred-current-section"),
-  upcomingSection: document.getElementById("sat-pred-upcoming-section"),
-  status: document.getElementById("sat-pred-status")
-};
-var PAGE_SIZE = 50;
-var predShowAll = false;
-var predData = [];
-var predFilterText = "";
-var predMinEl = 0;
-var predCategory = "all";
-var predSatCount = 0;
-var predCountdownTimer = null;
-function isPageVisible() {
-  return !!dom.page && dom.page.style.display !== "none";
-}
-function azToCardinal(deg) {
-  const dirs = ["N", "NE", "E", "SE", "S", "SW", "W", "NW"];
-  return dirs[Math.round(deg / 45) % 8] ?? "N";
-}
-function formatPredTime(ms) {
-  const d = new Date(ms);
-  const now = /* @__PURE__ */ new Date();
-  const dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
-  const day = d.getUTCDay() !== now.getUTCDay() ? `${dayNames[d.getUTCDay()] ?? ""} ` : "";
-  const hh = String(d.getUTCHours()).padStart(2, "0");
-  const mm = String(d.getUTCMinutes()).padStart(2, "0");
-  return `${day}${hh}:${mm}`;
-}
-function formatPredDuration(s) {
-  if (s >= 60) return `${Math.round(s / 60)} min`;
-  return `${s}s`;
-}
-function formatCountdown(ms) {
-  const totalSec = Math.max(0, Math.floor(ms / 1e3));
-  const m = Math.floor(totalSec / 60);
-  const s = totalSec % 60;
-  return `${m}:${String(s).padStart(2, "0")}`;
-}
-function elevationClass(deg) {
-  if (deg >= 45) return "sat-pred-el-high";
-  if (deg >= 10) return "sat-pred-el-mid";
-  return "sat-pred-el-low";
-}
-function stopCountdownTimer() {
-  if (predCountdownTimer) {
-    clearInterval(predCountdownTimer);
-    predCountdownTimer = null;
-  }
-}
-function startCountdownTimer(container) {
-  const countdownEls = container?.querySelectorAll(".sat-pred-col-countdown") ?? [];
-  if (countdownEls.length === 0) return;
-  predCountdownTimer = setInterval(() => {
-    if (!isPageVisible()) {
-      stopCountdownTimer();
-      return;
-    }
-    const n = Date.now();
-    let anyActive = false;
-    for (const el of countdownEls) {
-      const los = Number.parseInt(el.dataset.los ?? "0", 10);
-      const rem = los - n;
-      if (rem > 0) {
-        el.textContent = formatCountdown(rem);
-        anyActive = true;
-      } else {
-        el.textContent = "0:00";
-      }
-    }
-    if (!anyActive) {
-      stopCountdownTimer();
-      render(filtered());
-    }
-  }, 1e3);
-}
-function buildCurrentPassRow(pass, now) {
-  const row = document.createElement("div");
-  row.className = "sat-pred-row-current";
-  const dir = `${azToCardinal(pass.azimuth_aos_deg)} → ${azToCardinal(pass.azimuth_los_deg)}`;
-  const remaining = Math.max(0, pass.los_ms - now);
-  row.innerHTML = [
-    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
-    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}°</span>`,
-    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
-    `<span class="sat-pred-col-time">${formatPredTime(pass.los_ms)}</span>`,
-    `<span class="sat-pred-col-countdown" data-los="${pass.los_ms}">${formatCountdown(remaining)}</span>`,
-    `<span class="sat-pred-col-dir">${dir}</span>`
-  ].join("");
-  return row;
-}
-function buildUpcomingPassRow(pass) {
-  const row = document.createElement("div");
-  row.className = "sat-pred-row";
-  const dir = `${azToCardinal(pass.azimuth_aos_deg)} → ${azToCardinal(pass.azimuth_los_deg)}`;
-  row.innerHTML = [
-    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
-    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
-    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}°</span>`,
-    `<span class="sat-pred-col-dur">${formatPredDuration(pass.duration_s)}</span>`,
-    `<span class="sat-pred-col-dir">${dir}</span>`
-  ].join("");
-  return row;
-}
-function filtered() {
-  let items = predData;
-  if (predCategory !== "all") items = items.filter((p) => p.category === predCategory);
-  if (predMinEl > 0) items = items.filter((p) => p.max_elevation_deg >= predMinEl);
-  if (predFilterText) items = items.filter((p) => p.satellite.toUpperCase().includes(predFilterText));
-  return items;
-}
-function applyFilters() {
-  render(filtered());
-}
-var filterInput = dom.filter;
-filterInput?.addEventListener("input", () => {
-  predFilterText = filterInput.value.trim().toUpperCase();
-  applyFilters();
-});
-var minElevationSelect = dom.minElevation;
-minElevationSelect?.addEventListener("change", () => {
-  predMinEl = Number.parseInt(minElevationSelect.value, 10) || 0;
-  applyFilters();
-});
-var categorySelect = dom.category;
-categorySelect?.addEventListener("change", () => {
-  predCategory = categorySelect.value;
-  applyFilters();
-});
-function render(passes, error) {
-  stopCountdownTimer();
-  if (error) {
-    if (dom.currentList) dom.currentList.innerHTML = "";
-    if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-    if (dom.currentSection) dom.currentSection.style.display = "none";
-    if (dom.upcomingSection) dom.upcomingSection.style.display = "none";
-    if (dom.status) dom.status.textContent = error;
-    return;
-  }
-  if (!Array.isArray(passes) || passes.length === 0) {
-    if (dom.currentList) dom.currentList.innerHTML = "";
-    if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-    if (dom.currentSection) dom.currentSection.style.display = "none";
-    if (dom.upcomingSection) dom.upcomingSection.style.display = "none";
-    if (dom.status) dom.status.textContent = "No passes found in the next 24 hours.";
-    return;
-  }
-  const now = Date.now();
-  const current = passes.filter((p) => p.aos_ms <= now && p.los_ms > now);
-  const upcoming = passes.filter((p) => p.aos_ms > now);
-  if (dom.currentSection) dom.currentSection.style.display = current.length > 0 ? "" : "none";
-  if (dom.currentList) {
-    if (current.length === 0) {
-      dom.currentList.innerHTML = "";
-    } else {
-      const frag = document.createDocumentFragment();
-      for (const pass of current) frag.appendChild(buildCurrentPassRow(pass, now));
-      dom.currentList.replaceChildren(frag);
-    }
-  }
-  const upcomingLimit = predShowAll ? upcoming.length : PAGE_SIZE;
-  const visibleUpcoming = upcoming.slice(0, upcomingLimit);
-  const hiddenCount = upcoming.length - visibleUpcoming.length;
-  if (dom.upcomingSection) dom.upcomingSection.style.display = upcoming.length > 0 ? "" : "none";
-  if (dom.upcomingList) {
-    const frag = document.createDocumentFragment();
-    for (const pass of visibleUpcoming) frag.appendChild(buildUpcomingPassRow(pass));
-    if (hiddenCount > 0) {
-      const moreRow = document.createElement("div");
-      moreRow.className = "sat-pred-row";
-      moreRow.style.cursor = "pointer";
-      moreRow.style.textAlign = "center";
-      moreRow.innerHTML = `<span style="grid-column:1/-1;color:var(--accent);font-size:0.82rem;">Show ${hiddenCount} more passes…</span>`;
-      moreRow.addEventListener("click", () => {
-        predShowAll = true;
-        render(filtered());
-      });
-      frag.appendChild(moreRow);
-    }
-    dom.upcomingList.replaceChildren(frag);
-  }
-  if (dom.status) {
-    let text = `${current.length} active · ${upcoming.length} upcoming · times in UTC`;
-    if (predSatCount > 0) text += ` · ${predSatCount} satellites tracked`;
-    dom.status.textContent = text;
-  }
-  if (current.length > 0 && isPageVisible()) {
-    startCountdownTimer(dom.currentList);
-  }
-}
-async function load() {
-  if (dom.status) dom.status.textContent = "Loading predictions…";
-  if (dom.currentList) dom.currentList.innerHTML = "";
-  if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-  try {
-    const resp = await fetch("/sat_passes");
-    if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
-    const data = await resp.json();
-    predSatCount = data.satellite_count || 0;
-    if (data.error) {
-      predData = [];
-      render([], data.error);
-    } else {
-      predData = data.passes || [];
-      render(filtered());
-    }
-  } catch (error) {
-    render([], `Failed to load predictions: ${error instanceof Error ? error.message : String(error)}`);
-  }
-}
-function clearPredictionDom() {
-  stopCountdownTimer();
-  if (dom.currentList) dom.currentList.innerHTML = "";
-  if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-}
-predWindow.clearSatPredictionDom = clearPredictionDom;
-predWindow.refreshSatPredictions = function() {
-  predShowAll = false;
-  void load();
-};

src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html

@@ -24,7 +24,6 @@ SPDX-License-Identifier: GPL-2.0-or-later
     <symbol id="icon-bookmark" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M4 2h8v12l-4-2.5L4 14V2z"/></symbol>
     <symbol id="icon-digital" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M1 11.5h2.6V4.5h3.2v7h3.2v-7h3.2v7H15"/></symbol>
     <symbol id="icon-map" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M8 2a4 4 0 0 1 4 4c0 3-4 8-4 8S4 9 4 6a4 4 0 0 1 4-4z"/><circle cx="8" cy="6" r="1.2" fill="currentColor" stroke="none"/></symbol>
-    <symbol id="icon-satellite" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.4" stroke-linecap="round" stroke-linejoin="round"><path d="M2 13.2 5.6 9.6"/><path d="M4.2 8.2a3.4 3.4 0 0 1 4.8 4.8z"/><path d="M9.2 6.6a3.2 3.2 0 0 1 2.6 2.6"/><path d="M9.8 3.6a6.2 6.2 0 0 1 5.2 5.2"/></symbol>
     <symbol id="icon-stats" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.4" stroke-linecap="round" stroke-linejoin="round"><path d="M2 14h12"/><rect x="3" y="8" width="2" height="6" rx="0.4" fill="currentColor" stroke="none" opacity="0.6"/><rect x="7" y="5" width="2" height="9" rx="0.4" fill="currentColor" stroke="none" opacity="0.75"/><rect x="11" y="2" width="2" height="12" rx="0.4" fill="currentColor" stroke="none" opacity="0.9"/></symbol>
     <symbol id="icon-record" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><circle cx="8" cy="8" r="6"/><circle cx="8" cy="8" r="2.5" fill="currentColor" stroke="none"/></symbol>
     <symbol id="icon-settings" viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.4" stroke-linecap="round" stroke-linejoin="round"><path d="M9.8 3.1a2.6 2.6 0 0 0-2.2 3.9L3.4 11.2a1.2 1.2 0 1 0 1.7 1.7l4.2-4.2a2.6 2.6 0 0 0 3.9-2.2l-1.8.6-1.2-1.2z"/><path d="M10.2 5.8 12 4"/></symbol>
@@ -64,10 +63,6 @@ SPDX-License-Identifier: GPL-2.0-or-later
             <svg class="tab-icon" aria-hidden="true"><use href="#icon-map"/></svg>
             <span class="tab-label">Map</span>
           </button>
-          <button class="tab" data-tab="satellites">
-            <svg class="tab-icon" aria-hidden="true"><use href="#icon-satellite"/></svg>
-            <span class="tab-label">Satellites</span>
-          </button>
           <button class="tab" data-tab="statistics">
             <svg class="tab-icon" aria-hidden="true"><use href="#icon-stats"/></svg>
             <span class="tab-label">Statistics</span>
@@ -923,6 +918,7 @@ SPDX-License-Identifier: GPL-2.0-or-later
         <div class="sat-view-bar">
           <button id="sat-view-live" class="sat-view-btn sat-view-active" type="button">Live</button>
           <button id="sat-view-history" class="sat-view-btn" type="button">History</button>
+          <button id="sat-view-predictions" class="sat-view-btn" type="button">Predictions</button>
         </div>
         <!-- Live view -->
         <div id="sat-live-view">
@@ -964,6 +960,50 @@ SPDX-License-Identifier: GPL-2.0-or-later
           <div id="sat-history-list"></div>
           <small id="sat-history-count" style="color:var(--text-muted);font-size:0.75rem;">No images yet</small>
         </div>
+        <!-- Predictions view -->
+        <div id="sat-predictions-view" style="display:none;">
+          <div class="ft8-controls">
+            <input id="sat-pred-filter" class="ft8-filter" type="text" placeholder="Filter (e.g. ISS, NOAA, Meteor)" />
+            <select id="sat-pred-category" class="sat-sort-select">
+              <option value="all">All</option>
+              <option value="weather">Weather</option>
+              <option value="amateur">Ham Radio</option>
+              <option value="other">Other</option>
+            </select>
+            <select id="sat-pred-min-el" class="sat-sort-select">
+              <option value="0">All passes</option>
+              <option value="10">Min 10°</option>
+              <option value="20">Min 20°</option>
+              <option value="45">Min 45°</option>
+            </select>
+          </div>
+          <!-- Current passes -->
+          <div id="sat-pred-current-section">
+            <div class="sat-pred-section-title">Currently receivable</div>
+            <div class="sat-pred-header sat-pred-header-current">
+              <span class="sat-pred-col-sat">Satellite</span>
+              <span class="sat-pred-col-el">Max El</span>
+              <span class="sat-pred-col-time">AOS Start</span>
+              <span class="sat-pred-col-time">AOS End</span>
+              <span class="sat-pred-col-countdown">Time left</span>
+              <span class="sat-pred-col-dir">Direction</span>
+            </div>
+            <div id="sat-pred-current-list"></div>
+          </div>
+          <!-- Upcoming passes -->
+          <div id="sat-pred-upcoming-section">
+            <div class="sat-pred-section-title">Upcoming passes</div>
+            <div class="sat-pred-header">
+              <span class="sat-pred-col-time">AOS (UTC)</span>
+              <span class="sat-pred-col-sat">Satellite</span>
+              <span class="sat-pred-col-el">Max El</span>
+              <span class="sat-pred-col-dur">Duration</span>
+              <span class="sat-pred-col-dir">Direction</span>
+            </div>
+            <div id="sat-pred-list"></div>
+          </div>
+          <small id="sat-pred-status" style="color:var(--text-muted);font-size:0.75rem;">Loading predictions&hellip;</small>
+        </div>
       </div>
       <div id="subtab-wefax" class="sub-tab-panel" style="display:none;">
         <div class="ft8-controls">
@@ -1077,51 +1117,6 @@ SPDX-License-Identifier: GPL-2.0-or-later
       </div>
       </template>
     </div>
-    <div id="tab-satellites" class="tab-panel" style="display:none;">
-      <h2 class="section-heading">Satellites</h2>
-      <div class="ft8-controls">
-        <input id="sat-pred-filter" class="ft8-filter" type="text" placeholder="Filter (e.g. ISS, NOAA, Meteor)" />
-        <select id="sat-pred-category" class="sat-sort-select">
-          <option value="all">All</option>
-          <option value="weather">Weather</option>
-          <option value="amateur">Ham Radio</option>
-          <option value="other">Other</option>
-        </select>
-        <select id="sat-pred-min-el" class="sat-sort-select">
-          <option value="0">All passes</option>
-          <option value="10">Min 10°</option>
-          <option value="20">Min 20°</option>
-          <option value="45">Min 45°</option>
-        </select>
-      </div>
-      <!-- Current passes -->
-      <div id="sat-pred-current-section">
-        <div class="sat-pred-section-title">Currently receivable</div>
-        <div class="sat-pred-header sat-pred-header-current">
-          <span class="sat-pred-col-sat">Satellite</span>
-          <span class="sat-pred-col-el">Max El</span>
-          <span class="sat-pred-col-time">AOS Start</span>
-          <span class="sat-pred-col-time">AOS End</span>
-          <span class="sat-pred-col-countdown">Time left</span>
-          <span class="sat-pred-col-dir">Direction</span>
-        </div>
-        <div id="sat-pred-current-list"></div>
-      </div>
-      <!-- Upcoming passes -->
-      <div id="sat-pred-upcoming-section">
-        <div class="sat-pred-section-title">Upcoming passes</div>
-        <div class="sat-pred-header">
-          <span class="sat-pred-col-time">AOS (UTC)</span>
-          <span class="sat-pred-col-sat">Satellite</span>
-          <span class="sat-pred-col-el">Max El</span>
-          <span class="sat-pred-col-dur">Duration</span>
-          <span class="sat-pred-col-dir">Direction</span>
-        </div>
-        <div id="sat-pred-list"></div>
-      </div>
-      <small id="sat-pred-status" style="color:var(--text-muted);font-size:0.75rem;">Loading predictions&hellip;</small>
-    </div>
-
     <div id="tab-statistics" class="tab-panel" style="display:none;">
       <h2 class="section-heading">Statistics</h2>
       <template id="tmpl-statistics">

src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css

@@ -3816,12 +3816,11 @@ body[data-operator-layout="broadcast"] #cw-bar-overlay {
 @media (max-width: 760px) {
   body[data-operator-layout="broadcast"] #wfm-controls-col { flex-basis: 100%; }
 }
-/* One navigation model at every width.  Satellites, Statistics, Recorder,
+/* One navigation model at every width.  Statistics, Recorder, Settings and
- * Settings and About are occasional destinations: they live behind More rather
+ * About are occasional destinations: they live behind More rather than
- * than competing with the operating tabs for the row and then scrolling out of
+ * competing with the operating tabs for the row and then scrolling out of
  * reach.  The mobile layout already grouped them this way; the desktop strip
  * now matches it, which is why the tab strip no longer needs to scroll. */
-.tab-bar-nav .tab[data-tab="satellites"],
 .tab-bar-nav .tab[data-tab="statistics"],
 .tab-bar-nav .tab[data-tab="recorder"],
 .tab-bar-nav .tab[data-tab="settings"],
@@ -4031,9 +4030,8 @@ body[data-operator-layout="broadcast"] #cw-bar-overlay {
     box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
   }
   .tab-icon, .tab-more-icon { display: block; }
-  .tab[data-tab="satellites"], .tab[data-tab="statistics"],
+  .tab[data-tab="statistics"], .tab[data-tab="recorder"],
-  .tab[data-tab="recorder"], .tab[data-tab="settings"],
+  .tab[data-tab="settings"], .tab[data-tab="about"] { display: none; }
-  .tab[data-tab="about"] { display: none; }
   .mobile-more-btn { display: flex; }
   .mobile-more-menu {
     position: fixed;

src/trx-client/trx-frontend/trx-frontend-http/frontend/build.mjs

@@ -30,7 +30,6 @@ await build({
     "hf-aprs": path.join(sourceDir, "plugins", "hf-aprs.ts"),
     sat: path.join(sourceDir, "plugins", "sat.ts"),
     "sat-scheduler": path.join(sourceDir, "plugins", "sat-scheduler.ts"),
-    "satellite-predictions": path.join(sourceDir, "plugins", "satellite-predictions.ts"),
     vchan: path.join(sourceDir, "plugins", "vchan.ts"),
     bookmarks: path.join(sourceDir, "plugins", "bookmarks.ts"),
     scheduler: path.join(sourceDir, "plugins", "scheduler.ts"),

src/trx-client/trx-frontend/trx-frontend-http/frontend/package.json

@@ -12,7 +12,7 @@
     "typecheck": "tsc --project tsconfig.json && tsc --project tsconfig.worker.json",
     "lint": "eslint \"src/**/*.ts\" \"tests/**/*.mjs\" build.mjs --no-error-on-unmatched-pattern",
     "test": "node --test tests/*.test.mjs",
-    "test:browser": "node tests/browser-smoke.mjs && node tests/spectrum-layout.mjs && node tests/decode-flow.mjs && node tests/tune-links.mjs && node tests/mobile-layout.mjs && node tests/satellite-predictions.mjs",
+    "test:browser": "node tests/browser-smoke.mjs && node tests/spectrum-layout.mjs && node tests/decode-flow.mjs && node tests/tune-links.mjs && node tests/mobile-layout.mjs",
     "verify-generated": "npm run generate-types && npm run build && git diff --exit-code -- ../assets/web/generated src/api/generated.ts"
   },
   "devDependencies": {

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/app.ts

@@ -385,7 +385,6 @@ declare global {
     refreshCwTonePicker?(): void;
     updateFt8RfDisplay?(): void;
     clearSatPredictionDom?(): void;
-    refreshSatPredictions?(): void;
     syncWefaxToggle?(enabled: boolean): void;
     syncSstvToggle?(enabled: boolean): void;
     updateAisBar?(value?: number): void;
@@ -4850,7 +4849,6 @@ function _initMapWhenReady() {
 
 function navigateToTab(name: TabName, options: { updateHistory?: boolean; replaceHistory?: boolean } = {}) {
   window.trxUi?.closeMobileOverlays?.();
-  const leavingSatellites = _activeTab === "satellites" && name !== "satellites";
   const { updateHistory = true, replaceHistory = false } = options;
   if (authEnabled && !authRole && name !== "main") {
     showAuthGate(false);
@@ -4891,13 +4889,7 @@ function navigateToTab(name: TabName, options: { updateHistory?: boolean; replac
     updateTabHistory(name, replaceHistory);
   }
   scheduleSpectrumLayout();
-  // Its countdowns tick every second, so the page stops when it is not on screen.
+  void loadPluginsForTab(name).catch((error: unknown) => { console.error(error); });
-  if (leavingSatellites) window.clearSatPredictionDom?.();
-  void loadPluginsForTab(name).then(() => {
-    // Passes go stale while the page is closed, so each visit reloads them.
-    // The first visit is what imports the module, which renders on its own.
-    if (name === "satellites") window.refreshSatPredictions?.();
-  }).catch((error: unknown) => { console.error(error); });
   if (name === "map") {
     _initMapWhenReady();
   }
@@ -5249,6 +5241,10 @@ function _wireSubTabBar(bar: WiredElement) {
         if (window.refreshCwTonePicker) window.refreshCwTonePicker();
       });
     }
+    // Clear SAT prediction DOM when leaving the SAT tab to reduce node count.
+    if (btn.dataset.subtab !== "sat" && typeof window.clearSatPredictionDom === "function") {
+      window.clearSatPredictionDom();
+    }
   });
 }
 document.querySelectorAll<WiredElement>(".sub-tab-bar").forEach(_wireSubTabBar);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/features/navigation/routes.ts

@@ -3,7 +3,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 export const TAB_ORDER = [
-  "main", "bookmarks", "digital-modes", "map", "satellites", "statistics", "recorder", "settings", "about",
+  "main", "bookmarks", "digital-modes", "map", "statistics", "recorder", "settings", "about",
 ] as const;
 
 export type TabName = typeof TAB_ORDER[number];
@@ -13,7 +13,6 @@ export const TAB_PATHS: Readonly<Record<TabName, string>> = {
   bookmarks: "/bookmarks",
   "digital-modes": "/digital-modes",
   map: "/map",
-  satellites: "/satellites",
   statistics: "/statistics",
   recorder: "/recorder",
   settings: "/settings",

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugin-loader.ts

@@ -2,9 +2,7 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-type PluginGroup =
+type PluginGroup = "digital-modes" | "map-data" | "map" | "statistics" | "bookmarks" | "recorder" | "settings";
-  | "digital-modes" | "map-data" | "map" | "satellites" | "statistics"
-  | "bookmarks" | "recorder" | "settings";
 
 const pluginGroups: Readonly<Record<PluginGroup, readonly string[]>> = {
   // AIS, VDES and the two APRS decoders have panels on this tab, so they load
@@ -17,7 +15,6 @@ const pluginGroups: Readonly<Record<PluginGroup, readonly string[]>> = {
   ],
   "map-data": ["/map-core.js", "/ais.js", "/vdes.js", "/aprs.js", "/hf-aprs.js"],
   map: ["/map-core.js", "/ais.js", "/vdes.js", "/aprs.js", "/hf-aprs.js", "/sat.js", "/sat-scheduler.js"],
-  satellites: ["/satellite-predictions.js"],
   statistics: ["/map-core.js"],
   bookmarks: ["/bookmarks.js"],
   recorder: [],

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/sat.ts

@@ -4,12 +4,13 @@
 
 import { hostCore } from "./host.js";
 
-import type { LrptProgress, SatelliteImage, SatelliteLiveUpdate } from "./satellite-types";
+import type { LrptProgress, SatelliteImage, SatelliteLiveUpdate, SatellitePass, SatellitePassResponse } from "./satellite-types";
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
-type SatelliteView = "live" | "history";
+type SatelliteView = "live" | "history" | "predictions";
 interface SatelliteBridge {
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
+  clearSatPredictionDom?: () => void;
   updateSatLiveState?: (update: SatelliteLiveUpdate) => void;
   addSatMapOverlay?: (image: SatelliteImage) => void;
   clearSatMapOverlays?: () => void;
@@ -24,14 +25,14 @@ const satWindow = window as unknown as SatelliteBridge & PluginRuntimeWindow;
 // --- SAT Plugin ---
 // Live view: decoder state, latest image card
 // History view: filterable table of all decoded images
-//
+// Predictions view: next 24 h passes for ham satellites
-// Pass predictions live on their own page; see satellite-predictions.ts.
 
 // ── DOM references (cached once) ───────────────────────────────────
 const satDom = {
   status:           document.getElementById("sat-status"),
   liveView:         document.getElementById("sat-live-view"),
   historyView:      document.getElementById("sat-history-view"),
+  predictionsView:  document.getElementById("sat-predictions-view"),
   liveLatest:       document.getElementById("sat-live-latest"),
   historyList:      document.getElementById("sat-history-list"),
   historyCount:     document.getElementById("sat-history-count"),
@@ -41,13 +42,30 @@ const satDom = {
   lrptState:        document.getElementById("sat-lrpt-state"),
   viewLiveBtn:      document.getElementById("sat-view-live"),
   viewHistoryBtn:   document.getElementById("sat-view-history"),
+  viewPredBtn:      document.getElementById("sat-view-predictions"),
+  predFilter:       document.getElementById("sat-pred-filter") as HTMLInputElement | null,
+  predMinEl:        document.getElementById("sat-pred-min-el") as HTMLSelectElement | null,
+  predCategory:     document.getElementById("sat-pred-category") as HTMLSelectElement | null,
+  predCurrentList:  document.getElementById("sat-pred-current-list"),
+  predUpcomingList: document.getElementById("sat-pred-list"),
+  predCurrentSec:   document.getElementById("sat-pred-current-section"),
+  predUpcomingSec:  document.getElementById("sat-pred-upcoming-section"),
+  predStatus:       document.getElementById("sat-pred-status"),
 };
 
 // ── State ───────────────────────────────────────────────────────────
 let satImageHistory: SatelliteImage[] = [];
 const SAT_MAX_IMAGES = 100;
+const SAT_PRED_PAGE_SIZE = 50;
+let satPredShowAll = false;
 let satFilterText = "";
 let satActiveView: SatelliteView = "live";
+let satPredData: SatellitePass[] = [];
+let satPredFilterText = "";
+let satPredMinEl = 0;
+let satPredCategory = "all";
+let satPredSatCount = 0;
+let satPredCountdownTimer: ReturnType<typeof setInterval> | null = null;
 
 // ── UI scheduler helper ─────────────────────────────────────────────
 function scheduleSatUi(key: string, job: () => void): void {
@@ -60,16 +78,33 @@ function scheduleSatUi(key: string, job: () => void): void {
 
 // ── View switching ──────────────────────────────────────────────────
 function switchSatView(view: SatelliteView): void {
+  const leavingPredictions = satActiveView === "predictions" && view !== "predictions";
   satActiveView = view;
-  if (satDom.liveView)       satDom.liveView.style.display = view === "live" ? "" : "none";
+  if (satDom.liveView)        satDom.liveView.style.display = view === "live" ? "" : "none";
-  if (satDom.historyView)    satDom.historyView.style.display = view === "history" ? "" : "none";
+  if (satDom.historyView)     satDom.historyView.style.display = view === "history" ? "" : "none";
-  if (satDom.viewLiveBtn)    satDom.viewLiveBtn.classList.toggle("sat-view-active", view === "live");
+  if (satDom.predictionsView) satDom.predictionsView.style.display = view === "predictions" ? "" : "none";
-  if (satDom.viewHistoryBtn) satDom.viewHistoryBtn.classList.toggle("sat-view-active", view === "history");
+  if (satDom.viewLiveBtn)     satDom.viewLiveBtn.classList.toggle("sat-view-active", view === "live");
-  if (view === "history") renderSatHistoryTable();
+  if (satDom.viewHistoryBtn)  satDom.viewHistoryBtn.classList.toggle("sat-view-active", view === "history");
+  if (satDom.viewPredBtn)     satDom.viewPredBtn.classList.toggle("sat-view-active", view === "predictions");
+  if (leavingPredictions) clearPredictionDom();
+  if (view === "history") {
+    renderSatHistoryTable();
+  } else if (view === "predictions") {
+    satPredShowAll = false;
+    void loadSatPredictions();
+  }
 }
 
+function clearPredictionDom() {
+  stopCountdownTimer();
+  if (satDom.predCurrentList)  satDom.predCurrentList.innerHTML = "";
+  if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+}
+satWindow.clearSatPredictionDom = clearPredictionDom;
+
 satDom.viewLiveBtn?.addEventListener("click", () => { switchSatView("live"); });
 satDom.viewHistoryBtn?.addEventListener("click", () => { switchSatView("history"); });
+satDom.viewPredBtn?.addEventListener("click", () => { switchSatView("predictions"); });
 
 // ── Live view: decoder state ────────────────────────────────────────
 let lastSatLrptOn: boolean | null = null;
@@ -300,6 +335,234 @@ document
     }
   })(); });
 
+// ── Predictions: helpers ────────────────────────────────────────────
+function azToCardinal(deg: number): string {
+  const dirs = ["N", "NE", "E", "SE", "S", "SW", "W", "NW"];
+  return dirs[Math.round(deg / 45) % 8] ?? "N";
+}
+
+function formatPredTime(ms: number): string {
+  const d = new Date(ms);
+  const now = new Date();
+  const dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
+  const day = d.getUTCDay() !== now.getUTCDay() ? `${dayNames[d.getUTCDay()] ?? ""} ` : "";
+  const hh = String(d.getUTCHours()).padStart(2, "0");
+  const mm = String(d.getUTCMinutes()).padStart(2, "0");
+  return `${day}${hh}:${mm}`;
+}
+
+function formatPredDuration(s: number): string {
+  if (s >= 60) return `${Math.round(s / 60)} min`;
+  return `${s}s`;
+}
+
+function formatCountdown(ms: number): string {
+  const totalSec = Math.max(0, Math.floor(ms / 1000));
+  const m = Math.floor(totalSec / 60);
+  const s = totalSec % 60;
+  return `${m}:${String(s).padStart(2, "0")}`;
+}
+
+function elevationClass(deg: number): string {
+  if (deg >= 45) return "sat-pred-el-high";
+  if (deg >= 10) return "sat-pred-el-mid";
+  return "sat-pred-el-low";
+}
+
+// ── Predictions: countdown timer management ─────────────────────────
+function stopCountdownTimer() {
+  if (satPredCountdownTimer) {
+    clearInterval(satPredCountdownTimer);
+    satPredCountdownTimer = null;
+  }
+}
+
+function startCountdownTimer(container: HTMLElement | null): void {
+  const countdownEls = container?.querySelectorAll<HTMLElement>(".sat-pred-col-countdown") ?? [];
+  if (countdownEls.length === 0) return;
+
+  satPredCountdownTimer = setInterval(() => {
+    if (satActiveView !== "predictions") {
+      stopCountdownTimer();
+      return;
+    }
+    const n = Date.now();
+    let anyActive = false;
+    for (const el of countdownEls) {
+      const los = Number.parseInt(el.dataset.los ?? "0", 10);
+      const rem = los - n;
+      if (rem > 0) {
+        el.textContent = formatCountdown(rem);
+        anyActive = true;
+      } else {
+        el.textContent = "0:00";
+      }
+    }
+    if (!anyActive) {
+      stopCountdownTimer();
+      renderSatPredictions(getFilteredPredictions());
+    }
+  }, 1000);
+}
+
+// ── Predictions: row builders ───────────────────────────────────────
+function buildCurrentPassRow(pass: SatellitePass, now: number): HTMLElement {
+  const row = document.createElement("div");
+  row.className = "sat-pred-row-current";
+  const dir = `${azToCardinal(pass.azimuth_aos_deg)} \u2192 ${azToCardinal(pass.azimuth_los_deg)}`;
+  const remaining = Math.max(0, pass.los_ms - now);
+  row.innerHTML = [
+    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
+    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}\u00B0</span>`,
+    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
+    `<span class="sat-pred-col-time">${formatPredTime(pass.los_ms)}</span>`,
+    `<span class="sat-pred-col-countdown" data-los="${pass.los_ms}">${formatCountdown(remaining)}</span>`,
+    `<span class="sat-pred-col-dir">${dir}</span>`,
+  ].join("");
+  return row;
+}
+
+function buildUpcomingPassRow(pass: SatellitePass): HTMLElement {
+  const row = document.createElement("div");
+  row.className = "sat-pred-row";
+  const dir = `${azToCardinal(pass.azimuth_aos_deg)} \u2192 ${azToCardinal(pass.azimuth_los_deg)}`;
+  row.innerHTML = [
+    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
+    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
+    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}\u00B0</span>`,
+    `<span class="sat-pred-col-dur">${formatPredDuration(pass.duration_s)}</span>`,
+    `<span class="sat-pred-col-dir">${dir}</span>`,
+  ].join("");
+  return row;
+}
+
+// ── Predictions: filter state ───────────────────────────────────────
+function getFilteredPredictions(): SatellitePass[] {
+  let items = satPredData;
+  if (satPredCategory !== "all") items = items.filter((p) => p.category === satPredCategory);
+  if (satPredMinEl > 0) items = items.filter((p) => p.max_elevation_deg >= satPredMinEl);
+  if (satPredFilterText) items = items.filter((p) => p.satellite.toUpperCase().includes(satPredFilterText));
+  return items;
+}
+
+function applyPredFilters() {
+  renderSatPredictions(getFilteredPredictions());
+}
+
+const satPredictionFilter = satDom.predFilter;
+satPredictionFilter?.addEventListener("input", () => {
+  satPredFilterText = satPredictionFilter.value.trim().toUpperCase();
+  applyPredFilters();
+});
+
+const satPredictionMinElevation = satDom.predMinEl;
+satPredictionMinElevation?.addEventListener("change", () => {
+  satPredMinEl = Number.parseInt(satPredictionMinElevation.value, 10) || 0;
+  applyPredFilters();
+});
+
+const satPredictionCategory = satDom.predCategory;
+satPredictionCategory?.addEventListener("change", () => {
+  satPredCategory = satPredictionCategory.value;
+  applyPredFilters();
+});
+
+// ── Predictions: main render ────────────────────────────────────────
+function renderSatPredictions(passes: SatellitePass[], error?: string): void {
+  stopCountdownTimer();
+
+  if (error) {
+    if (satDom.predCurrentList)  satDom.predCurrentList.innerHTML = "";
+    if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+    if (satDom.predCurrentSec)   satDom.predCurrentSec.style.display = "none";
+    if (satDom.predUpcomingSec)  satDom.predUpcomingSec.style.display = "none";
+    if (satDom.predStatus)       satDom.predStatus.textContent = error;
+    return;
+  }
+
+  if (!Array.isArray(passes) || passes.length === 0) {
+    if (satDom.predCurrentList)  satDom.predCurrentList.innerHTML = "";
+    if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+    if (satDom.predCurrentSec)   satDom.predCurrentSec.style.display = "none";
+    if (satDom.predUpcomingSec)  satDom.predUpcomingSec.style.display = "none";
+    if (satDom.predStatus)       satDom.predStatus.textContent = "No passes found in the next 24 hours.";
+    return;
+  }
+
+  const now = Date.now();
+  const current = passes.filter((p) => p.aos_ms <= now && p.los_ms > now);
+  const upcoming = passes.filter((p) => p.aos_ms > now);
+
+  // ── Current passes ──
+  if (satDom.predCurrentSec) satDom.predCurrentSec.style.display = current.length > 0 ? "" : "none";
+  if (satDom.predCurrentList) {
+    if (current.length === 0) {
+      satDom.predCurrentList.innerHTML = "";
+    } else {
+      const frag = document.createDocumentFragment();
+      for (const pass of current) frag.appendChild(buildCurrentPassRow(pass, now));
+      satDom.predCurrentList.replaceChildren(frag);
+    }
+  }
+
+  // ── Upcoming passes ──
+  const upcomingLimit = satPredShowAll ? upcoming.length : SAT_PRED_PAGE_SIZE;
+  const visibleUpcoming = upcoming.slice(0, upcomingLimit);
+  const hiddenCount = upcoming.length - visibleUpcoming.length;
+  if (satDom.predUpcomingSec) satDom.predUpcomingSec.style.display = upcoming.length > 0 ? "" : "none";
+  if (satDom.predUpcomingList) {
+    const frag = document.createDocumentFragment();
+    for (const pass of visibleUpcoming) frag.appendChild(buildUpcomingPassRow(pass));
+    if (hiddenCount > 0) {
+      const moreRow = document.createElement("div");
+      moreRow.className = "sat-pred-row";
+      moreRow.style.cursor = "pointer";
+      moreRow.style.textAlign = "center";
+      moreRow.innerHTML = `<span style="grid-column:1/-1;color:var(--accent);font-size:0.82rem;">Show ${hiddenCount} more passes\u2026</span>`;
+      moreRow.addEventListener("click", () => {
+        satPredShowAll = true;
+        renderSatPredictions(getFilteredPredictions());
+      });
+      frag.appendChild(moreRow);
+    }
+    satDom.predUpcomingList.replaceChildren(frag);
+  }
+
+  // ── Status ──
+  if (satDom.predStatus) {
+    let text = `${current.length} active \u00B7 ${upcoming.length} upcoming \u00B7 times in UTC`;
+    if (satPredSatCount > 0) text += ` \u00B7 ${satPredSatCount} satellites tracked`;
+    satDom.predStatus.textContent = text;
+  }
+
+  // ── Countdown timer ──
+  if (current.length > 0 && satActiveView === "predictions") {
+    startCountdownTimer(satDom.predCurrentList);
+  }
+}
+
+// ── Predictions: data loading ───────────────────────────────────────
+async function loadSatPredictions(): Promise<void> {
+  if (satDom.predStatus)       satDom.predStatus.textContent = "Loading predictions\u2026";
+  if (satDom.predCurrentList)  satDom.predCurrentList.innerHTML = "";
+  if (satDom.predUpcomingList) satDom.predUpcomingList.innerHTML = "";
+  try {
+    const resp = await fetch("/sat_passes");
+    if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
+    const data = await resp.json() as SatellitePassResponse;
+    satPredSatCount = data.satellite_count || 0;
+    if (data.error) {
+      satPredData = [];
+      renderSatPredictions([], data.error);
+    } else {
+      satPredData = data.passes || [];
+      renderSatPredictions(getFilteredPredictions());
+    }
+  } catch (error: unknown) {
+    renderSatPredictions([], `Failed to load predictions: ${error instanceof Error ? error.message : String(error)}`);
+  }
+}
+
 // ── Navigate to map centered on satellite image bounds ──────────────
 satWindow.satShowOnMap = function (south: number, west: number, north: number, east: number) {
   if (typeof satWindow.enableMapSourceFilter === "function") {

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/satellite-predictions.ts

@@ -1,290 +0,0 @@
-// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-//
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-import type { SatellitePass, SatellitePassResponse } from "./satellite-types";
-
-// --- Satellite pass predictions ---
-//
-// Its own page rather than a third view inside the weather-satellite decoder:
-// when a bird comes over is a planning question, and it was buried under
-// Digital modes beside decoders it has nothing to do with.
-
-interface PredictionsBridge {
-  clearSatPredictionDom?: () => void;
-  refreshSatPredictions?: () => void;
-}
-const predWindow = window as unknown as PredictionsBridge;
-
-// ── DOM references (cached once) ───────────────────────────────────
-const dom = {
-  page:            document.getElementById("tab-satellites"),
-  filter:          document.getElementById("sat-pred-filter") as HTMLInputElement | null,
-  minElevation:    document.getElementById("sat-pred-min-el") as HTMLSelectElement | null,
-  category:        document.getElementById("sat-pred-category") as HTMLSelectElement | null,
-  currentList:     document.getElementById("sat-pred-current-list"),
-  upcomingList:    document.getElementById("sat-pred-list"),
-  currentSection:  document.getElementById("sat-pred-current-section"),
-  upcomingSection: document.getElementById("sat-pred-upcoming-section"),
-  status:          document.getElementById("sat-pred-status"),
-};
-
-// ── State ───────────────────────────────────────────────────────────
-const PAGE_SIZE = 50;
-let predShowAll = false;
-let predData: SatellitePass[] = [];
-let predFilterText = "";
-let predMinEl = 0;
-let predCategory = "all";
-let predSatCount = 0;
-let predCountdownTimer: ReturnType<typeof setInterval> | null = null;
-
-/** The countdowns tick once a second, so they stop when nobody is looking. */
-function isPageVisible(): boolean {
-  return !!dom.page && dom.page.style.display !== "none";
-}
-
-// ── Predictions: helpers ────────────────────────────────────────────
-function azToCardinal(deg: number): string {
-  const dirs = ["N", "NE", "E", "SE", "S", "SW", "W", "NW"];
-  return dirs[Math.round(deg / 45) % 8] ?? "N";
-}
-
-function formatPredTime(ms: number): string {
-  const d = new Date(ms);
-  const now = new Date();
-  const dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
-  const day = d.getUTCDay() !== now.getUTCDay() ? `${dayNames[d.getUTCDay()] ?? ""} ` : "";
-  const hh = String(d.getUTCHours()).padStart(2, "0");
-  const mm = String(d.getUTCMinutes()).padStart(2, "0");
-  return `${day}${hh}:${mm}`;
-}
-
-function formatPredDuration(s: number): string {
-  if (s >= 60) return `${Math.round(s / 60)} min`;
-  return `${s}s`;
-}
-
-function formatCountdown(ms: number): string {
-  const totalSec = Math.max(0, Math.floor(ms / 1000));
-  const m = Math.floor(totalSec / 60);
-  const s = totalSec % 60;
-  return `${m}:${String(s).padStart(2, "0")}`;
-}
-
-function elevationClass(deg: number): string {
-  if (deg >= 45) return "sat-pred-el-high";
-  if (deg >= 10) return "sat-pred-el-mid";
-  return "sat-pred-el-low";
-}
-
-// ── Predictions: countdown timer management ─────────────────────────
-function stopCountdownTimer() {
-  if (predCountdownTimer) {
-    clearInterval(predCountdownTimer);
-    predCountdownTimer = null;
-  }
-}
-
-function startCountdownTimer(container: HTMLElement | null): void {
-  const countdownEls = container?.querySelectorAll<HTMLElement>(".sat-pred-col-countdown") ?? [];
-  if (countdownEls.length === 0) return;
-
-  predCountdownTimer = setInterval(() => {
-    if (!isPageVisible()) {
-      stopCountdownTimer();
-      return;
-    }
-    const n = Date.now();
-    let anyActive = false;
-    for (const el of countdownEls) {
-      const los = Number.parseInt(el.dataset.los ?? "0", 10);
-      const rem = los - n;
-      if (rem > 0) {
-        el.textContent = formatCountdown(rem);
-        anyActive = true;
-      } else {
-        el.textContent = "0:00";
-      }
-    }
-    if (!anyActive) {
-      stopCountdownTimer();
-      render(filtered());
-    }
-  }, 1000);
-}
-
-// ── Predictions: row builders ───────────────────────────────────────
-function buildCurrentPassRow(pass: SatellitePass, now: number): HTMLElement {
-  const row = document.createElement("div");
-  row.className = "sat-pred-row-current";
-  const dir = `${azToCardinal(pass.azimuth_aos_deg)} \u2192 ${azToCardinal(pass.azimuth_los_deg)}`;
-  const remaining = Math.max(0, pass.los_ms - now);
-  row.innerHTML = [
-    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
-    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}\u00B0</span>`,
-    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
-    `<span class="sat-pred-col-time">${formatPredTime(pass.los_ms)}</span>`,
-    `<span class="sat-pred-col-countdown" data-los="${pass.los_ms}">${formatCountdown(remaining)}</span>`,
-    `<span class="sat-pred-col-dir">${dir}</span>`,
-  ].join("");
-  return row;
-}
-
-function buildUpcomingPassRow(pass: SatellitePass): HTMLElement {
-  const row = document.createElement("div");
-  row.className = "sat-pred-row";
-  const dir = `${azToCardinal(pass.azimuth_aos_deg)} \u2192 ${azToCardinal(pass.azimuth_los_deg)}`;
-  row.innerHTML = [
-    `<span class="sat-pred-col-time">${formatPredTime(pass.aos_ms)}</span>`,
-    `<span class="sat-pred-col-sat">${pass.satellite}</span>`,
-    `<span class="sat-pred-col-el ${elevationClass(pass.max_elevation_deg)}">${pass.max_elevation_deg.toFixed(1)}\u00B0</span>`,
-    `<span class="sat-pred-col-dur">${formatPredDuration(pass.duration_s)}</span>`,
-    `<span class="sat-pred-col-dir">${dir}</span>`,
-  ].join("");
-  return row;
-}
-
-// ── Predictions: filter state ───────────────────────────────────────
-function filtered(): SatellitePass[] {
-  let items = predData;
-  if (predCategory !== "all") items = items.filter((p) => p.category === predCategory);
-  if (predMinEl > 0) items = items.filter((p) => p.max_elevation_deg >= predMinEl);
-  if (predFilterText) items = items.filter((p) => p.satellite.toUpperCase().includes(predFilterText));
-  return items;
-}
-
-function applyFilters() {
-  render(filtered());
-}
-
-const filterInput = dom.filter;
-filterInput?.addEventListener("input", () => {
-  predFilterText = filterInput.value.trim().toUpperCase();
-  applyFilters();
-});
-
-const minElevationSelect = dom.minElevation;
-minElevationSelect?.addEventListener("change", () => {
-  predMinEl = Number.parseInt(minElevationSelect.value, 10) || 0;
-  applyFilters();
-});
-
-const categorySelect = dom.category;
-categorySelect?.addEventListener("change", () => {
-  predCategory = categorySelect.value;
-  applyFilters();
-});
-
-// ── Predictions: main render ────────────────────────────────────────
-function render(passes: SatellitePass[], error?: string): void {
-  stopCountdownTimer();
-
-  if (error) {
-    if (dom.currentList)  dom.currentList.innerHTML = "";
-    if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-    if (dom.currentSection)   dom.currentSection.style.display = "none";
-    if (dom.upcomingSection)  dom.upcomingSection.style.display = "none";
-    if (dom.status)       dom.status.textContent = error;
-    return;
-  }
-
-  if (!Array.isArray(passes) || passes.length === 0) {
-    if (dom.currentList)  dom.currentList.innerHTML = "";
-    if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-    if (dom.currentSection)   dom.currentSection.style.display = "none";
-    if (dom.upcomingSection)  dom.upcomingSection.style.display = "none";
-    if (dom.status)       dom.status.textContent = "No passes found in the next 24 hours.";
-    return;
-  }
-
-  const now = Date.now();
-  const current = passes.filter((p) => p.aos_ms <= now && p.los_ms > now);
-  const upcoming = passes.filter((p) => p.aos_ms > now);
-
-  // ── Current passes ──
-  if (dom.currentSection) dom.currentSection.style.display = current.length > 0 ? "" : "none";
-  if (dom.currentList) {
-    if (current.length === 0) {
-      dom.currentList.innerHTML = "";
-    } else {
-      const frag = document.createDocumentFragment();
-      for (const pass of current) frag.appendChild(buildCurrentPassRow(pass, now));
-      dom.currentList.replaceChildren(frag);
-    }
-  }
-
-  // ── Upcoming passes ──
-  const upcomingLimit = predShowAll ? upcoming.length : PAGE_SIZE;
-  const visibleUpcoming = upcoming.slice(0, upcomingLimit);
-  const hiddenCount = upcoming.length - visibleUpcoming.length;
-  if (dom.upcomingSection) dom.upcomingSection.style.display = upcoming.length > 0 ? "" : "none";
-  if (dom.upcomingList) {
-    const frag = document.createDocumentFragment();
-    for (const pass of visibleUpcoming) frag.appendChild(buildUpcomingPassRow(pass));
-    if (hiddenCount > 0) {
-      const moreRow = document.createElement("div");
-      moreRow.className = "sat-pred-row";
-      moreRow.style.cursor = "pointer";
-      moreRow.style.textAlign = "center";
-      moreRow.innerHTML = `<span style="grid-column:1/-1;color:var(--accent);font-size:0.82rem;">Show ${hiddenCount} more passes\u2026</span>`;
-      moreRow.addEventListener("click", () => {
-        predShowAll = true;
-        render(filtered());
-      });
-      frag.appendChild(moreRow);
-    }
-    dom.upcomingList.replaceChildren(frag);
-  }
-
-  // ── Status ──
-  if (dom.status) {
-    let text = `${current.length} active \u00B7 ${upcoming.length} upcoming \u00B7 times in UTC`;
-    if (predSatCount > 0) text += ` \u00B7 ${predSatCount} satellites tracked`;
-    dom.status.textContent = text;
-  }
-
-  // ── Countdown timer ──
-  if (current.length > 0 && isPageVisible()) {
-    startCountdownTimer(dom.currentList);
-  }
-}
-
-// ── Predictions: data loading ───────────────────────────────────────
-async function load(): Promise<void> {
-  if (dom.status)       dom.status.textContent = "Loading predictions\u2026";
-  if (dom.currentList)  dom.currentList.innerHTML = "";
-  if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-  try {
-    const resp = await fetch("/sat_passes");
-    if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
-    const data = await resp.json() as SatellitePassResponse;
-    predSatCount = data.satellite_count || 0;
-    if (data.error) {
-      predData = [];
-      render([], data.error);
-    } else {
-      predData = data.passes || [];
-      render(filtered());
-    }
-  } catch (error: unknown) {
-    render([], `Failed to load predictions: ${error instanceof Error ? error.message : String(error)}`);
-  }
-}
-
-// ── Page lifecycle ──────────────────────────────────────────────────
-function clearPredictionDom(): void {
-  stopCountdownTimer();
-  if (dom.currentList)  dom.currentList.innerHTML = "";
-  if (dom.upcomingList) dom.upcomingList.innerHTML = "";
-}
-predWindow.clearSatPredictionDom = clearPredictionDom;
-
-/**
- * Called by the router each time the Satellites page is opened, including the
- * visit that imports this module — so loading is driven from one place only.
- */
-predWindow.refreshSatPredictions = function () {
-  predShowAll = false;
-  void load();
-};

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/ui-core.ts

@@ -499,7 +499,7 @@ function elementById<T extends HTMLElement>(id: string): T {
       if (restoreFocus) more.focus();
     };
     api.closeMobileOverlays = closeMore;
-    ["satellites", "statistics", "recorder", "settings", "about"].forEach((tabName) => {
+    ["statistics", "recorder", "settings", "about"].forEach((tabName) => {
       const source = nav.querySelector(`[data-tab="${tabName}"]`);
       if (!source) return;
       const item = document.createElement("button");

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/satellite-predictions.mjs

@@ -1,122 +0,0 @@
-// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
-//
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-// Pass predictions used to be a third view inside the weather-satellite
-// decoder, under Digital modes — a planning tool filed with the decoders it has
-// nothing to do with. It is its own page now, so what this guards is that the
-// page exists at its own address, renders passes, and that the decoder card no
-// longer offers the view it gave up.
-
-import assert from "node:assert/strict";
-import { chromium } from "playwright-core";
-import { startBrowser, startWebFixture } from "./web-fixture.mjs";
-
-/* global document, window, getComputedStyle */
-
-const HOUR = 3_600_000;
-const now = Date.now();
-const satPasses = {
-  satellite_count: 2,
-  passes: [
-    // In progress right now, so the page has a countdown to run.
-    {
-      satellite: "NOAA 19", category: "weather",
-      aos_ms: now - 4 * 60_000, los_ms: now + 6 * 60_000,
-      max_elevation_deg: 62.4, duration_s: 600,
-      azimuth_aos_deg: 10, azimuth_los_deg: 190,
-    },
-    {
-      satellite: "ISS", category: "amateur",
-      aos_ms: now + 2 * HOUR, los_ms: now + 2 * HOUR + 480_000,
-      max_elevation_deg: 18.2, duration_s: 480,
-      azimuth_aos_deg: 200, azimuth_los_deg: 20,
-    },
-  ],
-};
-
-const fixture = await startWebFixture({ satPasses });
-const { browser, page, runtimeErrors } = await startBrowser(chromium);
-
-try {
-  await page.setViewportSize({ width: 1500, height: 950 });
-
-  // The page is reachable at its own address, not through a decoder sub-view.
-  // #content is the radio panel on the main tab, so the readiness signal for a
-  // deep link is the destination panel itself.
-  await page.goto(`${fixture.origin}/satellites`, { waitUntil: "domcontentloaded" });
-  await page.locator("#tab-satellites").waitFor({ state: "visible" });
-
-  await page.waitForFunction(
-    () => (document.getElementById("sat-pred-list")?.childElementCount ?? 0) > 0,
-    null,
-    { timeout: 5000 },
-  );
-
-  const rendered = await page.evaluate(() => ({
-    current: document.getElementById("sat-pred-current-list").textContent,
-    upcoming: document.getElementById("sat-pred-list").textContent,
-    status: document.getElementById("sat-pred-status").textContent,
-    activeTab: document.querySelector(".tab-bar .tab.active")?.dataset.tab,
-  }));
-  assert.match(rendered.current, /NOAA 19/, `current passes read "${rendered.current}"`);
-  assert.match(rendered.upcoming, /ISS/, `upcoming passes read "${rendered.upcoming}"`);
-  assert.match(rendered.status, /1 active/, `status reads "${rendered.status}"`);
-  assert.equal(rendered.activeTab, "satellites", "the Satellites tab is the active one");
-
-  // A pass in progress counts down, so the seconds have to move on their own.
-  const firstTick = await page.evaluate(
-    () => document.querySelector(".sat-pred-col-countdown[data-los]")?.textContent);
-  await page.waitForTimeout(1600);
-  const secondTick = await page.evaluate(
-    () => document.querySelector(".sat-pred-col-countdown[data-los]")?.textContent);
-  assert.notEqual(firstTick, secondTick, `the countdown sat at ${firstTick}`);
-
-  // Leaving stops the countdown rather than leaving a timer running behind a
-  // hidden page.
-  await page.evaluate(() => { window.navigateToTab("main"); });
-  await page.waitForTimeout(300);
-  const afterLeaving = await page.evaluate(() => ({
-    visible: document.getElementById("tab-satellites").style.display,
-    rows: document.getElementById("sat-pred-current-list").childElementCount,
-  }));
-  assert.equal(afterLeaving.visible, "none", "the page stayed on screen after navigating away");
-  assert.equal(afterLeaving.rows, 0, "the countdown rows outlived the page");
-
-  // Coming back reloads rather than showing whatever was there before.
-  await page.evaluate(() => { window.navigateToTab("satellites"); });
-  await page.waitForFunction(
-    () => (document.getElementById("sat-pred-list")?.childElementCount ?? 0) > 0,
-    null,
-    { timeout: 5000 },
-  );
-
-  // The page is an occasional destination, so it lives behind Tools rather than
-  // taking a slot in the operating strip — the same treatment Statistics,
-  // Recorder, Settings and About get.
-  const nav = await page.evaluate(() => ({
-    inStrip: getComputedStyle(document.querySelector('.tab-bar-nav .tab[data-tab="satellites"]')).display,
-    inTools: !!document.querySelector('#mobile-more-menu [data-navigate-tab="satellites"]'),
-  }));
-  assert.equal(nav.inStrip, "none", "Satellites took a slot in the operating strip");
-  assert.ok(nav.inTools, "Satellites is not reachable from Tools");
-
-  // The decoder card keeps Live and History, and no longer offers Predictions.
-  await page.goto(`${fixture.origin}/digital-modes`, { waitUntil: "domcontentloaded" });
-  await page.locator("#tab-digital-modes").waitFor({ state: "visible" });
-  const satCard = await page.evaluate(() => ({
-    predictionsButton: !!document.getElementById("sat-view-predictions"),
-    predictionsView: !!document.getElementById("sat-predictions-view"),
-    live: !!document.getElementById("sat-view-live"),
-    history: !!document.getElementById("sat-view-history"),
-  }));
-  assert.equal(satCard.predictionsButton, false, "the decoder card still offers Predictions");
-  assert.equal(satCard.predictionsView, false, "the old predictions view is still in the page");
-  assert.ok(satCard.live && satCard.history, "the decoder card lost Live/History");
-
-  assert.deepEqual(runtimeErrors, [], "the page threw while showing predictions");
-  console.log("satellite predictions page tests passed");
-} finally {
-  await browser.close();
-  await fixture.close();
-}

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/web-fixture.mjs

@@ -135,7 +135,6 @@ export async function startWebFixture({
   bandplan = {},
   bandplanEnabled = false,
   bandplanUnauthorizedFirst = false,
-  satPasses = null,
 } = {}) {
   const rigItems = ["rig-a", "rig-b"].map((remote) => ({
     remote,
@@ -231,7 +230,6 @@ export async function startWebFixture({
     ["/bandplan.json", bandplan],
     ["/api/recorder/status", []],
     ["/api/recorder/files", []],
-    ["/sat_passes", satPasses ?? { satellite_count: 0, passes: [] }],
   ]);
 
   // Flat i8 bins: the shape does not matter, only that frames arrive so the

src/trx-client/trx-frontend/trx-frontend-http/src/api/assets.rs

@@ -101,12 +101,6 @@ pub(crate) async fn statistics_index(req: HttpRequest) -> impl Responder {
     static_asset_response(&req, "text/html; charset=utf-8", c)
 }
 
-#[get("/satellites")]
-pub(crate) async fn satellites_index(req: HttpRequest) -> impl Responder {
-    let c = gz_index_html();
-    static_asset_response(&req, "text/html; charset=utf-8", c)
-}
-
 #[get("/bookmarks")]
 pub(crate) async fn bookmarks_index(req: HttpRequest) -> impl Responder {
     let c = gz_index_html();

src/trx-client/trx-frontend/trx-frontend-http/src/api/mod.rs

@@ -639,7 +639,6 @@ pub fn configure(cfg: &mut web::ServiceConfig) {
         .service(assets::recorder_index)
         .service(assets::settings_index)
         .service(assets::about_index)
-        .service(assets::satellites_index)
         .service(assets::statistics_index)
         .service(assets::bookmarks_index)
         .service(assets::favicon)