I am using a stock A2000, a A2000 with Vampire 2 board, A 1200 with Blizzard 030, a stock A500, a stock A1000, a A3000 w/040, a Tandy 100, a Tandy 102, and a Laser 128 (Apple II compatible).
I am back from the trade show, so I will look into this again. Maybe you both just have bad RF modules (CPU/RF etc. is in the module). I have sold hundreds of these in the last 2 weeks, with many more hundreds in use for the last 2 years. So, if there was an actual firmware issue we would have known about it a long time ago because everyone would be complaining.
My A1200 is a PAL version, complete with the British pound symbol in place of the # character.