diff --git a/src/Map/Cesium_Map.tsx b/src/Map/Cesium_Map.tsx
index 60b9889..862bdfc 100644
--- a/src/Map/Cesium_Map.tsx
+++ b/src/Map/Cesium_Map.tsx
@@ -114,6 +114,8 @@ const base_station_range_segment_count = 96;
 const base_station_range_boundary_sample_count = 72;
 const base_station_range_ground_clearance = 2;
 const default_camera_rectangle = Cesium.Rectangle.fromDegrees(119.98, 36.42, 122.56, 38.40);
+const base_station_model_bottom_y = 0.19261999428272247;
+const device_model_bottom_y = 4.06771041452885;
 export class Cesium_Map extends enhance.Base {
     viewer: Cesium.Viewer | null = null;
     container_id = "cesium-map";
@@ -834,6 +836,7 @@ export class Cesium_Map extends enhance.Base {
                 uri: this.model_config.deviceModel.url,
                 minimumPixelSize: this.device_display_size(ds),
                 maximumScale: 500,
+                nodeTransformations: this.device_node_transformations(),
                 enableVerticalExaggeration: false
             },
             label: {
@@ -941,6 +944,7 @@ export class Cesium_Map extends enhance.Base {
                 record.device.model.minimumPixelSize = new Cesium.ConstantProperty(0);
                 record.device.model.maximumScale = new Cesium.ConstantProperty(500);
             }
+            record.device.model.nodeTransformations = new Cesium.PropertyBag(this.device_node_transformations());
             this.keep_model_original_color(record.device.model);
             record.device.model.enableVerticalExaggeration = new Cesium.ConstantProperty(false);
         }
@@ -1163,7 +1167,12 @@ export class Cesium_Map extends enhance.Base {
     base_station_node_transformations(ds: Data_Source): {[key: string]: Cesium.TranslationRotationScale} {
         const horizontal_scale = Math.max(0.000001, ds.map3d_style().base_station_scale || 1);
         return {
-            Node: new Cesium.TranslationRotationScale(Cesium.Cartesian3.ZERO, Cesium.Quaternion.IDENTITY, new Cesium.Cartesian3(horizontal_scale, 1, horizontal_scale))
+            Node: new Cesium.TranslationRotationScale(new Cesium.Cartesian3(0, -base_station_model_bottom_y, 0), Cesium.Quaternion.IDENTITY, new Cesium.Cartesian3(horizontal_scale, 1, horizontal_scale))
+        };
+    }
+    device_node_transformations(): {[key: string]: Cesium.TranslationRotationScale} {
+        return {
+            RootNode: new Cesium.TranslationRotationScale(new Cesium.Cartesian3(0, -device_model_bottom_y, 0), Cesium.Quaternion.IDENTITY, new Cesium.Cartesian3(1, 1, 1))
         };
     }
     device_display_size(ds: Data_Source): number {