diff --git a/config/config.yml b/config/config.yml
index 5613a29..53f9bbd 100644
--- a/config/config.yml
+++ b/config/config.yml
@@ -3,6 +3,12 @@ capture:
   fc: 204640000
   device:
     type: "RspDuo"
+    agcSetPoint: -60
+    bandwidthNumber: 50
+    gainReduction: 40
+    lnaState: 4
+    dabNotch: false
+    rfNotch: false
   replay:
     state: false
     loop: true
diff --git a/config/radar4.yml b/config/radar4.yml
index 16af23d..76fff54 100644
--- a/config/radar4.yml
+++ b/config/radar4.yml
@@ -3,6 +3,12 @@ capture:
   fc: 204640000
   device:
     type: "RspDuo"
+    agcSetPoint: -60
+    bandwidthNumber: 50
+    gainReduction: 40
+    lnaState: 4
+    dabNotch: false
+    rfNotch: false
   replay:
     state: false
     loop: true
diff --git a/src/capture/rspduo/README.md b/src/capture/rspduo/README.md
new file mode 100644
index 0000000..764230f
--- /dev/null
+++ b/src/capture/rspduo/README.md
@@ -0,0 +1,18 @@
+## Config File
+
+The source of truth for the config file parameters is the [SDRplay API Specification](https://www.sdrplay.com/docs/SDRplay_API_Specification_v3.pdf).
+
+Here is a list of available config parameters:
+
+- **agcSetPoint** in dBfs has a default value of -60 dBfs, and can be set between -72 dBfs and 0 dBfs.
+
+- **bandwidthNumber** in Hz has a default value of 50 Hz, and can be 0, 5, 50 or 100 Hz.
+
+- **gainReduction** in dB has a default value of 40 dB, and can be set between 20 and 60.
+
+- **lnaState** has a default value of 4, must be between 1 and 9.
+
+- **dabNotch** is a bool, true turns on the DAB band notch filter (default false).
+
+- **rfNotch** is a bool, true turns on the AM/FM band notch filter (default false).
+