diff --git a/edmm/gnd.json b/edmm/gnd.json
new file mode 100644
index 0000000..75cea4b
--- /dev/null
+++ b/edmm/gnd.json
@@ -0,0 +1,119 @@
+[
+  {
+    "logon": "EDDC_GND",
+    "frequency": "121.980",
+    "abbreviation": "DCG",
+    "description": "Dresden Ground",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDC_A_GND",
+    "frequency": "121.755",
+    "abbreviation": "DCAG",
+    "description": "",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDE_GND",
+    "frequency": "121.755",
+    "abbreviation": "DEG",
+    "description": "Erfurt Ground",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDE_A_GND",
+    "frequency": "121.905",
+    "abbreviation": "DEAG",
+    "description": "Erfurt Apron",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_1_GND",
+    "frequency": "121.780",
+    "abbreviation": "DMG1",
+    "description": "München Apron (Apron 1)",
+    "schedule_minstation": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_2_GND",
+    "frequency": "121.710",
+    "abbreviation": "DMG2",
+    "description": "München Apron (Apron 2)",
+    "schedule_minstation": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_3_GND",
+    "frequency": "121.930",
+    "abbreviation": "DMG3",
+    "description": "München Apron (Apron 3)",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_N_GND",
+    "frequency": "121.980",
+    "abbreviation": "DMGN",
+    "description": "München Ground (North)",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_S_GND",
+    "frequency": "121.830",
+    "abbreviation": "DMGS",
+    "description": "München Ground (South)",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDM_I_GND",
+    "frequency": "121.990",
+    "abbreviation": "DMGI",
+    "description": "München DeIcing Coordinator",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDN_GND",
+    "frequency": "121.760",
+    "abbreviation": "DNG",
+    "description": "Nürnberg Ground",
+    "schedule_minstation": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDDP_GND",
+    "frequency": "121.805",
+    "abbreviation": "DPG",
+    "description": "Leipzig Ground",
+    "schedule_minstation": [
+      "EDMM"
+    ]
+  },
+  {
+    "logon": "EDJA_GND",
+    "frequency": "121.680",
+    "abbreviation": "JAG",
+    "description": "Memmingen Ground",
+    "schedule_groups": [
+      "EDMM"
+    ]
+  }
+]
\ No newline at end of file