Changing Frequencies.....danger??

[Ed White]

I've done this (flown on chan 16 and 29 on 72 MHz and
chan 00 on 50 MHz) and done this with both my Futaba
Super 7 and 8UA transmitters with no problem.  The 9C
uses the same module.  You can do this freely and
legally.  This is not the same as changing a crystal
in the transmitter.  To the FCC what we call the
module they consider the entire transmitter, except
for antenna. 

But Steve is absolutely correct, the receiver is a
completely different matter.

--- RC Steve Sterling <rcsteve at tcrcm.org> wrote:

> No problem in a 9C. That module in the back that you
> swap to change
> frequency is a self contained module, no RF parts in
> the rest of the
> transmitter (except the antenna I guess). You can
> even switch to 6 meters
> which is 20 mhz away.
> 
> Receiver is a completely different story.
> 
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of
> F3AFlyer7 at comcast.net
> Sent: Wednesday, June 29, 2005 5:41 PM
> To: discussion at nsrca.org
> Subject: Changing Frequencies.....danger??
> 
> 
> Well I've heard a couple of opinions on this so I
> figure I'd get some more.
> I need to get a new frequency for the NATS but don't
> want to send my
> transmitter in. I have a Futaba 9C. Some have told
> me that I can change as
> many frequencies as I want without mishap, while
> others have told me that
> you can only go 6 up or 6 down or else your transmit
> range gets shorter. Is
> this true for transmitters with crystals in them
> only, or for both crystal
> and module transmitters? If this is also true for
> module transmitters, then
> why are there synthesized modules for the 9C?
> 
> Thanks!
> 
> Scott
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