swapping reciever and transmitter (Full Version)

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kryptonite5b -> swapping reciever and transmitter (5/9/2008 3:30:50 AM)

i was wondering if you can use diffrent recievers with diffrent radio's.. what i mean is, if i have an hpi fm radio, can i buy a futaba or airtronics fm reciever and swap out the crystles, will it work. i know im a cheap ass and i just dont want to swing the bucks for a radio set-up and im not happy with my hpi reciever.. thanx



systemlord -> RE: swapping reciever and transmitter (5/9/2008 11:54:31 AM)

I would have to say no chance, the chance that either company uses the same radio frequency is highly unlikely. Sorry.



snowbl!nd -> RE: swapping reciever and transmitter (5/9/2008 2:27:02 PM)

Generally transmitters and recievers are interchangeable, but it's a risk that they may not be. Obviously you'll need matching frequency crystals in both Tx and Rx.
If possible test whether or not it'll work before spending your money.



dacaur -> RE: swapping reciever and transmitter (5/20/2008 6:02:25 AM)

[8|][8|][8|][8|]

So long as the band (27Mhz, 75Mhz, etc) and the modulation (AM, FM) is the same, it will work. Any AM 27 Mhz RX will work with any AM 27Mhz TX. But, as an example, an AM 75Mhz RX will not work with FM 75Mhz TX, or an AM 27Mhz TX... Etc.



mx757 -> RE: swapping reciever and transmitter (5/24/2008 4:17:51 AM)

as long as they are both FM, not synthesized, and running off the same # crystal, youll be good to go.



SManMTB -> RE: swapping reciever and transmitter (5/24/2008 5:28:33 AM)


quote:

ORIGINAL: mx757

as long as they are both FM, not synthesized, and running off the same # crystal, youll be good to go.



Almost correct. Futaba and JR equipment are not compatible. One uses positive shift and the other negative shift in the FM signal. That's another thing to check for.

Anyting that's Futaba conmpatible will work together and anything JR compatible will work together.
I think Novak or Hitech makes a receiver where you can select the format of the signal.



dacaur -> RE: swapping reciever and transmitter (5/24/2008 6:28:02 AM)

Oh i didnt know surface radios had positive and negative shift as well.. I thought it was only air frequencies. In that case, futaba and hitec are negative shift and are interchangeable. And JR and airtronics/sanwa are positive shift and are interchangeable. Most Hitec and airtronics/sanwa TX's and some RX's are also shift selectable, so will work with either type. Most modern aftermarket RX's are either auto shift or shift selectable as well.



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