diff --git a/README.md b/README.md
index 9573df1..540e3af 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,8 @@ It should be noted that the CPS is extremely buggy, even the latest, and the var
 
 Despite these shortcomings the radio is actually pretty solid but be prepared to spend some time figuring out basic stuff let alone the more complex things - good luck.
 
+Many thanks to RA4FHE for his research, experimentation and knowledge!
+
 [Join the discussion](https://github.com/M7OCM/DM-32UV/discussions)
 
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