Not many folks left here any more but thought I would pass this on.
If you are having trouble with your Nevo NC-50 being out of range from your Q50 or S70 remote, I have an inexpensive solution. Plus there was a time where the antennas on the NC-50 were defective and causes a lot of disconnections, etc.
I bought some NC-50's on eBay to continue to extend my system and got a few likely with bad antennas, as the Q50 would constantly lose connection. Even as close as 10'.
Might be bad antennas or possibly other RF interference.
So, here is a great, inexpensive solution. The disconnects have stopped and I have 50' range and can even go outside as needed, when playing music outside,[Link: mouser.com]
This one has the correct connector for the NC-50 and has a 6' cable. There is one with 15' cable. Price was right at $15.