diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4abf764..d99f12f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 **unreleased**
 - Introduced `squelch_auto_margin` config option that allows configuring the auto squelch level
 - Removed `port` configuration option; `rtltcp_compat` takes the port number with the new connectors
+- New devices supported:
+  - BBRF103 / RX666 / RX888 devices supported by libsddc
 
 **0.20.0**
 - Added the ability to sign multiple keys in a single request, thus enabling multiple users to claim a single receiver
diff --git a/debian/changelog b/debian/changelog
index 31272e1..1e8e81e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -3,6 +3,8 @@ openwebrx (0.21.0) UNRELEASED; urgency=low
     auto squelch level
   * Removed `port` configuration option; `rtltcp_compat` takes the port number
     with the new connectors
+  * New devices supported:
+    - BBRF103 / RX666 / RX888 devices supported by libsddc
 
  -- Jakob Ketterl <jakob.ketterl@gmx.de>  Sun, 11 Oct 2020 21:12:00 +0000
 
diff --git a/owrx/command.py b/owrx/command.py
index 87ae711..0559b72 100644
--- a/owrx/command.py
+++ b/owrx/command.py
@@ -76,4 +76,4 @@ class Option(CommandMapping):
 
 class Argument(CommandMapping):
     def map(self, value):
-        return value
+        return str(value)
diff --git a/owrx/feature.py b/owrx/feature.py
index c81d8c7..5bf614f 100644
--- a/owrx/feature.py
+++ b/owrx/feature.py
@@ -68,6 +68,7 @@ class FeatureDetector(object):
         "red_pitaya": ["soapy_connector", "soapy_red_pitaya"],
         "radioberry": ["soapy_connector", "soapy_radioberry"],
         "fcdpp": ["soapy_connector", "soapy_fcdpp"],
+        "sddc": ["sddc_connector"],
         "hpsdr": ["hpsdr_connector"],
         # optional features and their requirements
         "digital_voice_digiham": ["digiham", "sox"],
@@ -494,6 +495,14 @@ class FeatureDetector(object):
         """
         return self.command_is_runnable("dream --help", 0)
 
+    def has_sddc_connector(self):
+        """
+        The sddc_connector allows connectivity with SDR devices powered by libsddc, e.g. RX666, RX888, HF103.
+
+        You can find more information [here](https://github.com/jketterl/sddc_connector).
+        """
+        return self.command_is_runnable("sddc_connector")
+
     def has_hpsdr_connector(self):
         """
         In order to use the HPSDR connector, you will need to install [hpsdrconnector]
diff --git a/owrx/source/sddc.py b/owrx/source/sddc.py
new file mode 100644
index 0000000..58e7380
--- /dev/null
+++ b/owrx/source/sddc.py
@@ -0,0 +1,6 @@
+from owrx.source.connector import ConnectorSource
+
+
+class SddcSource(ConnectorSource):
+    def getCommandMapper(self):
+        return super().getCommandMapper().setBase("sddc_connector")