diff --git a/README.md b/README.md index a74b574..faaa448 100644 --- a/README.md +++ b/README.md @@ -35,14 +35,14 @@ Can be used in two modes: # Test Results ![alt text](images/setup.png) - Antennas - - Client - rubber duck antenna or mobile antenna on a car roof - - Server - UHF yagi indoors -- Range (20 KHz channel width and 11 spreading factor) + - Client: rubber duck antenna or mobile antenna on a car roof + - Server: 7 element UHF yagi indoors +- Range (20 KHz channel width and 11 spreading factor, also got similar results with 125 kHz and 12 SF) - **About 4 km** when server is 30m above the ground and client is 2m above the ground with rubber duck antenna - **About 13 km** when server is 30m above the ground and client is at some higher point ~40m above the ground with rubber duck antenna - **About 17km** maximum (non-reliable) between base and mobile station with antenna on the car roof - Signal levels - Successful decodes down to **-17.5dB** below the noise floor when using compressed APRS coordinates (smaller packets, about 50 bytes), see https://github.com/ge0rg/aprsdroid/issues/170 for APRSDroid version with compressed coordinates support - Polarization - - Using horizontal polarization improves successful decoding probability in the city environment + - Using horizontal polarization improves successful decoding probability and receiving range in the city