diff --git a/data.json b/data.json
index b51867e..5214157 100644
--- a/data.json
+++ b/data.json
@@ -1838,7 +1838,7 @@
   },
   {
     "logon": "EDMM_RDG_CTR",
-    "frequency": "132.550",
+    "frequency": "132.555",
     "abbreviation": "RDG",
     "description": "M\u00fcnchen Radar (Roding)",
     "schedule_minstation": [
diff --git a/edmm/ctr.json b/edmm/ctr.json
index d1138b1..22d37fc 100644
--- a/edmm/ctr.json
+++ b/edmm/ctr.json
@@ -124,7 +124,7 @@
   },
   {
     "logon": "EDMM_RDG_CTR",
-    "frequency": "132.550",
+    "frequency": "132.555",
     "abbreviation": "RDG",
     "description": "M\u00fcnchen Radar (Roding)",
     "schedule_minstation": [
diff --git a/legacy/atc_station_mappings.json b/legacy/atc_station_mappings.json
index fb2f6f0..73c45cc 100644
--- a/legacy/atc_station_mappings.json
+++ b/legacy/atc_station_mappings.json
@@ -1037,7 +1037,7 @@
   {
     "id": "RDG",
     "callsignPrefix": "EDMM",
-    "frequency": "132.550"
+    "frequency": "132.555"
   },
   {
     "id": "STA",