Add rf transmit enable in hw config

firmware/inc/hw_config.h

@@ -195,6 +195,13 @@
 #define RF_POWER_14dBm		0x7f
 #define RF_POWER_8dBm		36
 
+/**
+ * RF Enable
+ *
+ * Disable this when there's no antenna connected
+ */
+#define RF_TX_ENABLE		1
+
 /**
  * LF Clock
  */

firmware/src/sequencer.c

@@ -52,6 +52,7 @@ void telemetry_sequence(struct tracker_datapoint* dp, uint32_t n)
   location_aprs_update(dp->latitude, dp->longitude);
 
   /* Telemetry */
+#if RF_TX_ENABLE
 #if TELEMETRY_ENABLE
 #if TELEMETRY_USE_GEOFENCE
   if (location_telemetry_active()) {
@@ -81,6 +82,7 @@ void telemetry_sequence(struct tracker_datapoint* dp, uint32_t n)
   }
 #endif
 #endif
+#endif
 }