Hi Tony, I agree with you. No one today would use an AM receiver for our hobby. Interference on an AM radio is present along with the desired signal and nothing takes it out. Welding near by can put out a whole spectrum of noise and this can blank out your receiver Also transformers and caps. on power poles that are not properly grounded can do the same. FM has what is called a capture effect. This means that if the desired signal is 6dB stronger than the interference the receiver doesn't hear the interference. This is a short course in radio theory but is the best I can do at this moment. Thermals, Art
Tony J. O'Hara wrote: > Message text written by "Robert Marlan" > >Range check fine. Used our field monitor scanner - it picked up nothing. > I was the only one at the > field on ch 44. Doubt interference as I was so close to the plain during > all this...< > > Hi Robert, > You did mean "AM Hitec radio"? an AM receiver is very susceptible to > interference -even "close to the plane", which can come at any time from > many different sources even tractors, older cars etc! I think you'll find > that nobody who flies "seriously" would even dream of using an AM system! I > wouldn't! > Get an FM system fast! > > Regards > Tony > Colorado > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and >"unsubscribe" requests to [EMAIL PROTECTED] RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
