I'm using telemetry in two of them..... but can't remember if the Rx status light is solid or flashing.
Having said that, I haven't installed telemetry on the other planes with the small receivers since I think that the signal deteriorates and it's not as clean as when I don't have it. Seen some numbers in the Powerbox and when telemetry is on, the number of fades goes up. It gets worse if I refresh telemetry constantly. Maybe I'm worrying too much and the signal is still robust enough.
I've read of a couple of people reporting problems when using the R7008SB with Powerbox, but nothing is confirmed. Just rumours......
http://forum.powerbox-systems.com/vi...lit=7008#p3984