diff --git a/assets/static/index.html b/assets/static/index.html
index d8eeaac..2420bf6 100644
--- a/assets/static/index.html
+++ b/assets/static/index.html
@@ -93,7 +93,7 @@
                             <span>Site Positions</span>
                         </label>
                         <label>
-                            <input type="checkbox" id="show-range-rings">
+                            <input type="checkbox" id="show-range-rings" checked>
                             <span>Range Rings</span>
                         </label>
                         <label>
diff --git a/assets/static/js/modules/map-manager.js b/assets/static/js/modules/map-manager.js
index bd2ac75..e3438e8 100644
--- a/assets/static/js/modules/map-manager.js
+++ b/assets/static/js/modules/map-manager.js
@@ -9,7 +9,7 @@ export class MapManager {
         this.sourceMarkers = new Map();
         this.rangeCircles = new Map();
         this.showSources = true;
-        this.showRange = false;
+        this.showRange = true;
         this.selectedSource = null;
         this.heatmapLayer = null;