diff --git a/tnc/rigdummy.py b/tnc/rigdummy.py
index 46e78475..0b8596cf 100644
--- a/tnc/rigdummy.py
+++ b/tnc/rigdummy.py
@@ -42,6 +42,10 @@ class radio:
         """ """
         return None
 
+    def get_strength(self):
+        """ """
+        return None
+
     def set_bandwidth(self):
         """ """
         return None