diff --git a/templates/index.html b/templates/index.html
index c29bdb3..9d5cbf8 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -4364,6 +4364,10 @@
             if (wifiLayoutContainer) wifiLayoutContainer.style.display = mode === 'wifi' ? 'flex' : 'none';
             if (btLayoutContainer) btLayoutContainer.style.display = mode === 'bluetooth' ? 'flex' : 'none';
             if (satelliteVisuals) satelliteVisuals.style.display = mode === 'satellite' ? 'block' : 'none';
+            const satFrame = document.getElementById('satelliteDashboardFrame');
+            if (satFrame && satFrame.contentWindow) {
+                satFrame.contentWindow.postMessage({type: 'satellite-visibility', visible: mode === 'satellite'}, '*');
+            }
             if (aprsVisuals) aprsVisuals.style.display = mode === 'aprs' ? 'flex' : 'none';
             if (tscmVisuals) tscmVisuals.style.display = mode === 'tscm' ? 'flex' : 'none';
             if (spyStationsVisuals) spyStationsVisuals.style.display = mode === 'spystations' ? 'flex' : 'none';
diff --git a/templates/satellite_dashboard.html b/templates/satellite_dashboard.html
index 0772cec..8b1f236 100644
--- a/templates/satellite_dashboard.html
+++ b/templates/satellite_dashboard.html
@@ -362,6 +362,33 @@
             return false;
         }
 
+        let positionPollingInterval = null;
+
+        function startPositionPolling() {
+            if (!positionPollingInterval) {
+                updateRealTimePositions();
+                positionPollingInterval = setInterval(updateRealTimePositions, 5000);
+            }
+        }
+
+        function stopPositionPolling() {
+            if (positionPollingInterval) {
+                clearInterval(positionPollingInterval);
+                positionPollingInterval = null;
+            }
+        }
+
+        // Listen for visibility messages from parent page (embedded mode)
+        window.addEventListener('message', (event) => {
+            if (event.data && event.data.type === 'satellite-visibility') {
+                if (event.data.visible) {
+                    startPositionPolling();
+                } else {
+                    stopPositionPolling();
+                }
+            }
+        });
+
         document.addEventListener('DOMContentLoaded', () => {
             loadDashboardSatellites();
             setupEmbeddedMode();
@@ -370,7 +397,11 @@
             updateClock();
             setInterval(updateClock, 1000);
             setInterval(updateCountdown, 1000);
-            setInterval(updateRealTimePositions, 5000);
+            // In standalone mode, start polling immediately.
+            // In embedded mode, wait for parent to signal visibility.
+            if (!isEmbedded) {
+                startPositionPolling();
+            }
             loadAgents();
             if (!usedShared) {
                 getLocation();