diff --git a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
index 51aebcbe..3f638c0e 100644
--- a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
+++ b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
@@ -209,11 +209,11 @@ SPDX-License-Identifier: GPL-2.0-or-later
             <div class="label"><span>Signal strength</span></div>
           </div>
           <div class="freq-field frequency-col">
-            <input class="status-input" id="freq" type="text" value="--" aria-describedby="freq-label" aria-label="Tuned frequency" />
+            <input class="status-input" id="freq" type="text" value="--" aria-describedby="freq-label" aria-label="Tuned frequency" autocomplete="off" autocorrect="off" spellcheck="false" />
             <div class="label" id="freq-label"><span>Frequency</span></div>
           </div>
           <div class="freq-field frequency-col center-frequency-col" id="center-freq-field" style="display:none;">
-            <input class="status-input" id="center-freq" type="text" value="--" aria-describedby="center-freq-label" aria-label="SDR center frequency" />
+            <input class="status-input" id="center-freq" type="text" value="--" aria-describedby="center-freq-label" aria-label="SDR center frequency" autocomplete="off" autocorrect="off" spellcheck="false" />
             <div class="label" id="center-freq-label"><span>Center Frequency</span></div>
           </div>
         </div>
diff --git a/src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/browser-smoke.mjs b/src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/browser-smoke.mjs
index 6b6fcff7..5185be4a 100644
--- a/src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/browser-smoke.mjs
+++ b/src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/browser-smoke.mjs
@@ -376,6 +376,18 @@ try {
     `text grew without a resize and the strip overlaps by ${unresized.overlap}px`);
   assert.equal(unresized.iconsOnly, true, "the strip kept its labels with no room for them");
 
+  // The frequency readouts are typed into, so the browser remembers what went
+  // in and offers it back in a dropdown over the reading — Edge does this by
+  // default. Nothing here wants to be autofilled from what was tuned last week.
+  const autofill = await page.evaluate(() => ["freq", "center-freq"].map((id) => {
+    const input = document.getElementById(id);
+    return { id, autocomplete: input?.getAttribute("autocomplete") ?? null };
+  }));
+  for (const field of autofill) {
+    assert.equal(field.autocomplete, "off",
+      `#${field.id} offers autofill (autocomplete=${field.autocomplete})`);
+  }
+
 } finally {
   await browser.close();
   await fixture.close();