[Rhodes22-list] Next photo mystery - VHF antenna?

[Joseph Hadzima]

Hi

The answer is sometimes or maybe :-)   Antenna design is
based upon the intended frequency and power (amoung many
many other factors) to be used.  IF the frequency range of
the two functions are close enough (e.g. the same band),
then it is possible, but other factors must still be
considered.

Ever notice a HAM radio operator's dipole antenna?  Look
close and you'll see small "lumps" in the two horizontal
wires, these are "chokes" which electrically change the
antenna length to better fit the current transmission
frequency (the higher the frequency the shorter the
antenna).

I DO NOT know the requirements of a GPS antenna, but I'll
guess you can't use it for both VHF & GPS.

As Dick Tracy used to say: "6-2 & Even, Tracy out" (and no,
I have'nt clue what that means).


Hope this helps


--- PaxRvr22 <thomas.musick at navy.mil> wrote:

> 
> Rummy,
> For grins I "googled" METZ and found a picture in their
> catelog of an item
> that looked like what John had.  It was labled as a AM/FM
> stereo antenna -
> it did have a whip attached.  Got me thinking, is it
> possible to use a
> single antenna for multiple purposes, eg., VHF radio and
> a GPS, or do you
> need specific antennae for particular functions.
> Tom
> 
> R22RumRunner wrote:
> > 
> > John,
> > You can barely see it in this picture.
> >  
> > Rummy
> > <BR><BR><BR>**************************************<BR>
> AOL now offers free 
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> > 
> > Name: image[5].jpg Type: image/jpeg Size: 14410 bytes
> Desc: not available
> > Url:
> >
>
http://www.rhodes22.org/pipermail/rhodes22-list/attch/200703/11/image5.jpg
> > 
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HADZ (a.k.a. joe)

"That's what a ship is, you know. It's not just a keel and hull and a deck and sails. That's what a ship needs. But what a ship is... is freedom." 
-- Captain Jack Sparrow