Crystals

[s.vannostrand at kodak.com]

No problem.  THe differences are in the receivers, not the crystals.  Just 
be sure you know if your reeiver is low or high band, then just buy the 
crystal a channel that the receiver will work with.

--Lance
 Forgive my ignorance....  My local hobby store sells receivers, PPM, and 
separately sells crystals for them.  Might be channel 6..or 60.  Could 
this be a problem?

Harry..

 ----- Original Message ----- 

From:  s.vannostrand at kodak.com 

To:  discussion at nsrca.org 

Sent: Thursday, December 12, 2002 1:59 PM

Subject: Re: Crystals



Tony S can give you the tech detail, but receivers are tuned circuits. The 
crystal is key to creating the reference frequency used to filter the 
signal picked up on the antenna.  The crystal sets up the basic reference 
frequency and the circuitry around it can only be used for a narrow range, 
or band, of frequencies.  The futaba receivers come in two types that have 
components that tune each to a different band.  You can put a low freq 
crystal in a high band receiver, but you'll have a detuned system, reduced 
range, and possible signal lock loss.  I wouldn't do it. 

--Lance 
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