robwlakes:
GitHub - robwlakes/ArduinoWeatherOS: Arduino Uno, 433MhzRx and OS WMR86 Weather StationCheers, Rob
Rob I was having a look at your Github page, very impressive work. I didn't think a Github page could look that good. In the circuit diagram I noticed that you have the ground next to the antenna connection on the 433MHz receiver going to the ground on the Arduino Uno. If I understand correctly, this is not the correct way to do it. This particular ground is the ground plane for the antenna. Now depending on the physical design of your system and where the antenna is located, the way you have it may actually degrade the reception sensitivity of your system. If it is working fine, then don't worry.
I have been amazed at the range I have been obtaining with the RXB6. I just have it on a breadboard without an antenna and it is picking up the signal at the other end of the house. Never expected that.