diff --git a/html/defaults.js b/html/defaults.js
index d7ceb89..75c5066 100644
--- a/html/defaults.js
+++ b/html/defaults.js
@@ -277,6 +277,8 @@ let askLocation = false; // requires https for geolocation
 
 let filterMaxRange = 1e8; // 100 000 km should include all planes on earth ;)
 
+let jaeroTimeout = 35 * 60; // in seconds
+
 
 // legacy variables
 let OutlineMlatColor = null;
diff --git a/html/planeObject.js b/html/planeObject.js
index 69d8119..0c969d1 100644
--- a/html/planeObject.js
+++ b/html/planeObject.js
@@ -2500,7 +2500,7 @@ PlaneObject.prototype.isNonIcao = function() {
 
 PlaneObject.prototype.checkVisible = function() {
     const zoomedOut = refreshInt() / globeSimLoad * globeTilesViewCount / 1000;
-    const jaeroTime = (this.dataSource == "adsc") ? 35*60 : 0;
+    const jaeroTime = (this.dataSource == "adsc") ? jaeroTimeout : 0;
     const mlatTime = (this.dataSource == "mlat") ? 25 : 0;
     const tisbReduction = (this.icao[0] == '~') ? 15 : 0;
     // If no packet in over 58 seconds, clear the plane.
diff --git a/html/script.js b/html/script.js
index 65121f1..5ce05ff 100644
--- a/html/script.js
+++ b/html/script.js
@@ -1417,6 +1417,10 @@ function initMap() {
         DefaultCenterLon = receiverJson.lon;
     }
 
+    if (receiverJson && receiverJson.jaeroTimeout) {
+        jaeroTimeout = receiverJson.jaeroTimeout * 60;
+    }
+
     if (receiverJson && receiverJson.globeIndexGrid != null) {
         globeIndexGrid = receiverJson.globeIndexGrid;
         globeIndex = 1;