fm and am ?

[dutchracer]

can you run at same time fm and am 27 megahertz same channel or will they interfere

[adamzty]

I am almost 100% sure that they wont interfere because a AM receiver wont pickup a FM signal.

[Grizzbob]

Incorrect, if both are on the exact same frequency(say, 27.115MHz for example), then they WILL interfere with each other, though generally the FM set may fare a bit better(but the AM one will likely not work at all, since AM tends to be more susceptible to interference). The only way to avoid that is for all to be on different specific frequencies(unless you have guys using 2.4GHz systems, they can pretty much do what they want without glitching or interference from outside sources)....:cool:

[adamzty]

ok sorry I am wrong... But do they make the same exact frequencies for am and fm? or are they a little bit different?

[Grizzbob]

No, for our use, FM & AM radios are set up to use the exact same frequencies(determined by the FCC), so if someone is on say, AM channel 4 & you normally use FM channel 4, then you or the other guy will just have to change to another channel, there's simply no other way around it(except for going to 2.4GHz, those systems will find a channel for you, that's why they've gotten so popular so fast, no more worrying about who's on what channel)....:cool:

[dutchracer]

thanks for the info thats what i thought just wanted to be sure

[BaronVonGareth]

Also, if the other guy has a gasoline powered vehicle, like a Baja 5B, any AM radios near that engine will go ape ****. There's nothing to stop the RF in the spark ignition from that engine from interfering. Car engines have resistors in the spark plugs, among other things, to contain this interferance so the radio in their dash will work, obviously, this means they won't interfere with RC radios either. Glow engines, being that they don't have this ignition system, don't have this problem.