[Az-Geocaching] GPS and Radio and Interference

[Trisha]

Hi Scott,

That is interesting.....if all satellites are being interfered with,
then probably the oscillator in your Motorola is interfering with the
GPS's IF (Intermediate Frequency). The 'IF' is a step down from the
satellite frequency in the gigahertz range to something that is used
internally to eventually have the readout display. (Complicated)

Not the first time a Motorola radio has caused interference to other
RF sensitive devices! *grin*
If that is *Greek* to you......**bigger GRIN**  just feel assured that
you are not alone.....some people have conflicts like this with
certain equipment. Annoying if it happens to you!

Trisha "Lightning"
Prescott



On Fri, 30 May 2003 14:55:59 -0700, "RopingThe Wind" wrote:

> 
> 
> 
> >From: "Teryr Hernlund - [General Bracket]" <generalbracket@cox.net>
> >Reply-To: listserv@azgeocaching.com
> >To: <listserv@azgeocaching.com>
> >Subject: Re: [Az-Geocaching] GPS on Commercial Airliner?
> >Date: Fri, 30 May 2003 12:03:19 -0700
> >
> >In any event, depending on the airline (America West has a strict
> policy 
> >against GPSr's), just pack it in >your carry-on like the rest of
your 
> >stuff.  Don't act suspicious and you won't be placed under
>suspicion.
> 
> That is interesting.. because they have all kinds of GPS equiptment
in
> the 
> cockpit!
> 
> I fly hot air balloons (FAA certified aircraft) and I always use GPS
> on 
> board. An interesting note I thought yall might be interested in:  I
> use two 
> way radio communication with my ground crew. The radios are Motorola
> VHF 
> radios. When my radio is turned on, I lose GPS sattelite reception.
> This has 
> happened with all my GPS's.. my Magellan 300, my Garmin 3+ and my
> Garmin 
> Etrex Legend. So, when I am flying in competitions where my GPS is
> being 
> used constantly, I cannot have my radio on and talk to my ground crew
> as my 
> GPS will stop tracking! I havent really tried changing frequencies in
> my 
> radio's to see if that would fix the problem. But, have been wanting
> to try 
> that (my crew if good and I rarely have to talk to them anyways
except
> when 
> getting ready to land). On the other hand, my aircraft radio (ICOM
> IC-A22), 
> which operates on higher frequencies, has no effect on my GPS.
> Interesting!
> 
> On the flip side of the coin.. my GPS's have no effect on the radio's
> or any 
> other instruments at all.
> 
> Scott
> Team Ropingthewind
> 
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