diff --git a/xrd.py b/xrd.py
index 4274585..e8fc2bb 100644
--- a/xrd.py
+++ b/xrd.py
@@ -16,7 +16,7 @@ HOST = os.getenv("HOST") or '0.0.0.0'
 PORT = int(os.getenv("PORT") or 0) or 7373
 DEVICE = os.getenv("DEV") or "COM6"
 
-FREQ_NOT_ALLOWED_RANGE = [9490, 9510]
+FREQ_NOT_ALLOWED_RANGE = [9482, 9518]
 
 PASSWORD = os.getenv("PW") or "test"
 CLOCK = 12000000 # DP-666