Nooob question but does it matter if the rx has 9 channels and the tx only 6? I suspect not if they are from same company and same shift +/- but want to make sure. Thanks

they both have to be the same channel.

They do not have to have same number of channels.

Thanks, din't think so but was having doubts

ive just bought a futaba ppm 6 channel rx for my jr pcm 9ch radio

so they obviously work

I thought in pcm mode the rx and tx had to be from the same company?

They do, if the radio is in PPM mode, as long as the shift is the same it doesn't matter.

pcm yes

ppm no..

i can change my radio from ppm to spcm and zpcm [>:]

Thanks. This reminds me of school (been 15 years) soooo much to learn. Thanks all

http://www.torreypinesgulls.org/Radios.htm