diff --git a/owrx/controllers/settings.py b/owrx/controllers/settings.py
index 685f6e8..352f56d 100644
--- a/owrx/controllers/settings.py
+++ b/owrx/controllers/settings.py
@@ -19,6 +19,7 @@ from owrx.form import (
     OptionalConverter,
     AprsBeaconSymbols,
     EnumConverter,
+    AprsAntennaDirections,
 )
 from urllib.parse import quote
 from owrx.wsjt import Fst4Profile, Fst4wProfile
@@ -297,7 +298,12 @@ class GeneralSettingsController(AdminController):
                 append="dBi",
                 converter=OptionalConverter(),
             ),
-            # TODO: aprs_igate_dir
+            DropdownInput(
+                "aprs_igate_dir",
+                "Antenna direction",
+                [o.toOption() for o in AprsAntennaDirections],
+                converter=EnumConverter(AprsAntennaDirections),
+            ),
         ),
         Section(
             "pskreporter settings",
@@ -359,6 +365,10 @@ class GeneralSettingsController(AdminController):
         data = {k: v for i in GeneralSettingsController.sections for k, v in i.parse(data).items()}
         config = Config.get()
         for k, v in data.items():
-            config[k] = v
+            if v is None:
+                if k in config:
+                    del config[k]
+            else:
+                config[k] = v
         Config.store()
         self.send_redirect("/generalsettings")
diff --git a/owrx/form/__init__.py b/owrx/form/__init__.py
index 4cb87df..af529d3 100644
--- a/owrx/form/__init__.py
+++ b/owrx/form/__init__.py
@@ -365,3 +365,18 @@ class AprsBeaconSymbols(Enum):
 
     def toOption(self):
         return Option(self.name, "{description} ({symbol})".format(description=str(self), symbol=self.value))
+
+
+class AprsAntennaDirections(Enum):
+    DIRECTION_OMNI = None
+    DIRECTION_N = "N"
+    DIRECTION_NE = "NE"
+    DIRECTION_E = "E"
+    DIRECTION_SE = "SE"
+    DIRECTION_S = "S"
+    DIRECTION_SW = "SW"
+    DIRECTION_W = "W"
+    DIRECTION_NW = "NW"
+
+    def toOption(self):
+        return Option(self.name, "omnidirectional" if self.value is None else self.value)