Elson,

That is interesting. I've sort of been debating that issue myself. It's great to set a plane up on PPM, declare it to be interference free, switch to PCM and go fly. What happens 10, 20 or 50 flights later when a problem has developed that the PCM is masking? Unless you range check with PPM before every flight you really don't know if something has changed. I know that getting the initial set up right is probably the hardest part, but there is always the chance that something has loosened up, worn out, etc.. I'll check out those receivers.

Thanks,
Bill Gavin