easier build

root/config.json

@@ -1,5 +1,11 @@
 {
-    "audio": {},
+    "audio": {
+        "Radio": {
+            "device": "Speakers (Realtek High Definiti",
+            "sampleRate": 48000.0,
+            "volume": 0.32258063554763794
+        }
+    },
     "bandPlan": "General",
     "bandPlanEnabled": true,
     "fftHeight": 300,
@@ -7,10 +13,19 @@
     "max": 0.0,
     "maximized": false,
     "menuWidth": 300,
-    "min": -70.0,
+    "min": -52.20588302612305,
     "showWaterfall": true,
-    "source": "",
-    "sourceSettings": {},
+    "source": "HackRF One #0 901868dc282c8f8b",
+    "sourceSettings": {
+        "HackRF One #0 901868dc282c8f8b": {
+            "gains": {
+                "AMP": 0.0,
+                "LNA": 24.503000259399414,
+                "VGA": 16.229999542236328
+            },
+            "sampleRate": 8000000
+        }
+    },
     "windowSize": {
         "h": 720,
         "w": 1280