ORIGINAL: Tennwalker41
The man that taught me to fly was using one then also. IT shot down 2 other plane with stray signals verified with a Hobbico freqency checker. Transmits on 3 frequencies at once. Went back to Polk 2 times with same results. MY opinion from experience JUNK>
You can't put too much stock in that Hobbico frequency checker as a detecter for stray signals. Those lights go on and off all the time on channels that aren't in use. Not to mention, it is not possible for that Tx to transmit on mulitple frequencies at a time, if I'm understanding the technology correctly. Maybe someone with more expertise on this can chime in, but I don't think it is possible, and is at a minimum very unlikely.