There's definitely some decent quoted distances online.
I've got a huge antenna on my RPi and the regular antenna on my kitchen sensor and it sometimes drops out. That's only going through 2 walls, one being a fairly thick brick wall, oh and the RPi is next to the consumer unit so there might be a bit of noise there. Changing the 2.4GHz channel might help for me. If you're out in the open with very little 2.4GHz interference you should definitely get much better distances.
I thought they did frequency hopping? Or is that something else. I think for anything flying some fairly robust frequency hopping spread spectrum stuff would be a necessity. With all the unregulated stuff on 2.4 Ghz you never know when some random device could totally knock out your comms.
I was sure I set the channel but can't seem to find it in my code.
I definitely set signal strength and speed though. Had to be highest strength and lowest speed to get what I have - which isn't as good as I wanted.
I'll have a proper look at it in a few weeks when university stuff is all finished with.
:-|
You can definitely set the channel. I assume it uses a default channel if you don't set one manually. There's a scanner sketch for the Arduino, maybe the Pi too, which shows interference on each channel.
And my heating didn't come on at the start of the week. I tried loading my web interface and it said "Can't connect to boiler :(" I thought something was broken but the radio connected to my Pi had slipped down the side of my subwoofer behind the telly and blocked the signal.
:'D
The morning my original setup failed wasn't fun, very cold morning!
:) I think I've moved it somewhere it should be ok now.