diff --git a/owrx/config/defaults.py b/owrx/config/defaults.py
index 7deeed4a..323c3a15 100644
--- a/owrx/config/defaults.py
+++ b/owrx/config/defaults.py
@@ -1,8 +1,9 @@
 from owrx.property import PropertyLayer
+from owrx.active.list import ActiveList
 
 
 defaultConfig = PropertyLayer(
-    version=8,
+    version=9,
     max_clients=20,
     receiver_name="[Callsign]",
     receiver_location="Budapest, Hungary",
@@ -20,125 +21,134 @@ defaultConfig = PropertyLayer(
     digimodes_fft_size=2048,
     digital_voice_dmr_id_lookup=True,
     digital_voice_nxdn_id_lookup=True,
-    sdrs=PropertyLayer(
-        rtlsdr=PropertyLayer(
+    sdrs=ActiveList([
+        PropertyLayer(
+            id="rtlsdr",
             name="RTL-SDR USB Stick",
             type="rtl_sdr",
-            profiles=PropertyLayer(
-                **{
-                    "70cm": PropertyLayer(
-                        name="70cm Repeaters",
-                        center_freq=438800000,
-                        rf_gain=29,
-                        samp_rate=2400000,
-                        start_freq=439275000,
-                        start_mod="nfm",
-                    ),
-                    "2m": PropertyLayer(
-                        name="2m",
-                        center_freq=145000000,
-                        rf_gain=29,
-                        samp_rate=2048000,
-                        start_freq=145725000,
-                        start_mod="nfm",
-                    ),
-                }
-            ),
+            profiles=ActiveList([
+                PropertyLayer(
+                    id="70cm",
+                    name="70cm Repeaters",
+                    center_freq=438800000,
+                    rf_gain=29,
+                    samp_rate=2400000,
+                    start_freq=439275000,
+                    start_mod="nfm",
+                ),
+                PropertyLayer(
+                    id="2m",
+                    name="2m",
+                    center_freq=145000000,
+                    rf_gain=29,
+                    samp_rate=2048000,
+                    start_freq=145725000,
+                    start_mod="nfm",
+                ),
+            ]),
         ),
-        airspy=PropertyLayer(
+        PropertyLayer(
+            id="airspy",
             name="Airspy HF+",
             type="airspyhf",
             rf_gain="auto",
-            profiles=PropertyLayer(
-                **{
-                    "20m": PropertyLayer(
-                        name="20m",
-                        center_freq=14150000,
-                        samp_rate=384000,
-                        start_freq=14070000,
-                        start_mod="usb",
-                    ),
-                    "30m": PropertyLayer(
-                        name="30m",
-                        center_freq=10125000,
-                        samp_rate=192000,
-                        start_freq=10142000,
-                        start_mod="usb",
-                    ),
-                    "40m": PropertyLayer(
-                        name="40m",
-                        center_freq=7100000,
-                        samp_rate=256000,
-                        start_freq=7070000,
-                        start_mod="lsb",
-                    ),
-                    "80m": PropertyLayer(
-                        name="80m",
-                        center_freq=3650000,
-                        samp_rate=384000,
-                        start_freq=3570000,
-                        start_mod="lsb",
-                    ),
-                    "49m": PropertyLayer(
-                        name="49m Broadcast",
-                        center_freq=6050000,
-                        samp_rate=384000,
-                        start_freq=6070000,
-                        start_mod="am",
-                    ),
-                }
-            ),
+            profiles=ActiveList([
+                PropertyLayer(
+                    id="20m",
+                    name="20m",
+                    center_freq=14150000,
+                    samp_rate=384000,
+                    start_freq=14070000,
+                    start_mod="usb",
+                ),
+                PropertyLayer(
+                    id="30m",
+                    name="30m",
+                    center_freq=10125000,
+                    samp_rate=192000,
+                    start_freq=10142000,
+                    start_mod="usb",
+                ),
+                PropertyLayer(
+                    id="40m",
+                    name="40m",
+                    center_freq=7100000,
+                    samp_rate=256000,
+                    start_freq=7070000,
+                    start_mod="lsb",
+                ),
+                PropertyLayer(
+                    id="80m",
+                    name="80m",
+                    center_freq=3650000,
+                    samp_rate=384000,
+                    start_freq=3570000,
+                    start_mod="lsb",
+                ),
+                PropertyLayer(
+                    id="49m",
+                    name="49m Broadcast",
+                    center_freq=6050000,
+                    samp_rate=384000,
+                    start_freq=6070000,
+                    start_mod="am",
+                ),
+            ]),
         ),
-        sdrplay=PropertyLayer(
+        PropertyLayer(
+            id="sdrplay",
             name="SDRPlay device",
             type="sdrplay",
             antenna="Antenna A",
-            profiles=PropertyLayer(
-                **{
-                    "20m": PropertyLayer(
-                        name="20m",
-                        center_freq=14150000,
-                        rf_gain=0,
-                        samp_rate=500000,
-                        start_freq=14070000,
-                        start_mod="usb",
-                    ),
-                    "30m": PropertyLayer(
-                        name="30m",
-                        center_freq=10125000,
-                        rf_gain=0,
-                        samp_rate=250000,
-                        start_freq=10142000,
-                        start_mod="usb",
-                    ),
-                    "40m": PropertyLayer(
-                        name="40m",
-                        center_freq=7100000,
-                        rf_gain=0,
-                        samp_rate=500000,
-                        start_freq=7070000,
-                        start_mod="lsb",
-                    ),
-                    "80m": PropertyLayer(
-                        name="80m",
-                        center_freq=3650000,
-                        rf_gain=0,
-                        samp_rate=500000,
-                        start_freq=3570000,
-                        start_mod="lsb",
-                    ),
-                    "49m": PropertyLayer(
-                        name="49m Broadcast",
-                        center_freq=6000000,
-                        rf_gain=0,
-                        samp_rate=500000,
-                        start_freq=6070000,
-                        start_mod="am",
-                    ),
-                }
-            ),
+            profiles=ActiveList([
+                PropertyLayer(
+                    id="20m",
+                    name="20m",
+                    center_freq=14150000,
+                    rf_gain=0,
+                    samp_rate=500000,
+                    start_freq=14070000,
+                    start_mod="usb",
+                ),
+                PropertyLayer(
+                    id="30m",
+                    name="30m",
+                    center_freq=10125000,
+                    rf_gain=0,
+                    samp_rate=250000,
+                    start_freq=10142000,
+                    start_mod="usb",
+                ),
+                PropertyLayer(
+                    id="40m",
+                    name="40m",
+                    center_freq=7100000,
+                    rf_gain=0,
+                    samp_rate=500000,
+                    start_freq=7070000,
+                    start_mod="lsb",
+                ),
+                PropertyLayer(
+                    id="80m",
+                    name="80m",
+                    center_freq=3650000,
+                    rf_gain=0,
+                    samp_rate=500000,
+                    start_freq=3570000,
+                    start_mod="lsb",
+                ),
+                PropertyLayer(
+                    id="49m",
+                    name="49m Broadcast",
+                    center_freq=6000000,
+                    rf_gain=0,
+                    samp_rate=500000,
+                    start_freq=6070000,
+                    start_mod="am",
+                ),
+            ]),
         ),
-    ),
+    ]),
     waterfall_scheme="GoogleTurboWaterfall",
     waterfall_levels=PropertyLayer(min=-88, max=-20),
     waterfall_auto_levels=PropertyLayer(min=3, max=10),