change display precision behavior to reference Hertz

owrx/config/defaults.py

@@ -2,7 +2,7 @@ from owrx.property import PropertyLayer
 
 
 defaultConfig = PropertyLayer(
-    version=5,
+    version=6,
     max_clients=20,
     receiver_name="[Callsign]",
     receiver_location="Budapest, Hungary",
@@ -25,7 +25,7 @@ defaultConfig = PropertyLayer(
     waterfall_scheme="GoogleTurboWaterfall",
     waterfall_levels=PropertyLayer(min=-88, max=-20),
     waterfall_auto_level_margin=PropertyLayer(min=3, max=10, min_range=50),
-    frequency_display_precision=4,
+    tuning_precision=2,
     squelch_auto_margin=10,
     nmux_memory=50,
     google_maps_api_key="",

owrx/config/migration.py

@@ -89,13 +89,23 @@ class ConfigMigratorVersion4(ConfigMigrator):
         config["version"] = 5
 
 
+class ConfigMigratorVersion5(ConfigMigrator):
+    def migrate(self, config):
+        if "frequency_display_precision" in config:
+            # old config was always in relation to the display in MHz (1e6 Hz, hence the 6)
+            config["tuning_precision"] = 6 - config["frequency_display_precision"]
+            del config["frequency_display_precision"]
+        config["version"] = 6
+
+
 class Migrator(object):
-    currentVersion = 5
+    currentVersion = 6
     migrators = {
         1: ConfigMigratorVersion1(),
         2: ConfigMigratorVersion2(),
         3: ConfigMigratorVersion3(),
         4: ConfigMigratorVersion4(),
+        5: ConfigMigratorVersion5(),
     }
 
     @staticmethod

owrx/connection.py

@@ -132,7 +132,7 @@ class OpenWebRxReceiverClient(OpenWebRxClient, SdrSourceEventClient):
         "audio_compression",
         "fft_compression",
         "max_clients",
-        "frequency_display_precision",
+        "tuning_precision",
     ]
 
     def __init__(self, conn):

owrx/controllers/settings/general.py

@@ -126,10 +126,12 @@ class GeneralSettingsController(SettingsFormController):
             ),
             Section(
                 "Display settings",
+                # TODO: custom input for this?
                 NumberInput(
-                    "frequency_display_precision",
-                    "Frequency display precision",
-                    infotext="Number of decimal digits to show on the frequency display",
+                    "tuning_precision",
+                    "Tuning precision",
+                    infotext="Specifies the precision of the frequency tuning display as an exponent of 10, in Hertz. "
+                    + "Setting this to 1 means 10Hz precision, 2 means 100Hz precision, etc.",
                 ),
             ),
             Section(