diff --git a/data.json b/data.json
index 12bd04b..19965c3 100644
--- a/data.json
+++ b/data.json
@@ -1734,19 +1734,22 @@
     "logon": "EDUU_A_CTR",
     "frequency": "133.860",
     "abbreviation": "SAL",
-    "description": "Rhein Radar (Saale)"
+    "description": "Rhein Radar (Saale)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_C_CTR",
     "frequency": "123.390",
     "abbreviation": "CHI",
-    "description": "Rhein Radar (Chiem)"
+    "description": "Rhein Radar (Chiem)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_D_CTR",
     "frequency": "127.290",
     "abbreviation": "DON",
-    "description": "Rhein Radar (Donau)"
+    "description": "Rhein Radar (Donau)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_FFM_CTR",
@@ -1770,13 +1773,15 @@
     "logon": "EDUU_I_CTR",
     "frequency": "136.335",
     "abbreviation": "ISA",
-    "description": "Rhein Radar (Isar)"
+    "description": "Rhein Radar (Isar)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_L_CTR",
     "frequency": "133.755",
     "abbreviation": "ALP",
-    "description": "Rhein Radar (Alpen)"
+    "description": "Rhein Radar (Alpen)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_NTM_CTR",
@@ -1800,13 +1805,15 @@
     "logon": "EDUU_P_CTR",
     "frequency": "133.285",
     "abbreviation": "SPE",
-    "description": "Rhein Radar (Spree)"
+    "description": "Rhein Radar (Spree)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_R_CTR",
     "frequency": "136.405",
     "abbreviation": "ERL",
-    "description": "Rhein Radar (Erlangen)"
+    "description": "Rhein Radar (Erlangen)",
+    "schedule_groups": "EDMM"
   },
   {
     "logon": "EDUU_SLN_CTR",