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Author Topic: VHF/UHF Antenna & no hole fiberglass body?  (Read 2884 times)
WD5CND
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Posts: 5




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« on: June 22, 2012, 02:05:59 PM »

Seems glass mount antennas are a no go. Cannot use a lip mount (Hatchback). Has a fiberglass body and no holes. Magnetics will not work. Glue? better not. Weld/bolt mounting bar to frame and antenna would be about 12 inch's from ground (better than nothing I guess). No luggage rack. Lip mount on hood (maybe)? Anyone have any suggestion? Vehicle is a Corvette. Got to be a way? non-permanent install.
Dan WD5CND@arrl.net
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KQ6Q
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Posts: 993




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« Reply #1 on: June 22, 2012, 04:38:13 PM »

How about a mag mount antenna on a metal baking pan in the cargo area under the hatch. It'll be better than a rubber duck on an HT. Just don't run a lot of power since you'll be only a couple of feet from the antenna. Mag mounts come in various lengths for 2m/440, so you should be able to find something that will fit.
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WD5CND
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« Reply #2 on: June 22, 2012, 05:13:42 PM »

Do they make them that short? There is hardly say 12~18 inch's maybe. But sounds like an idea worth trying. Might try that just using an HT (5 Watts). Thanks.
Danny WD5CND
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KB4QAA
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« Reply #3 on: June 22, 2012, 05:27:50 PM »

Use a regular antenna mount, like an NMO.   Then use copper foil (3 or 4 inch, ideal) to make an "X" centered underneath the antenna, glue it to the underside of the body.  Electrically connect the foil X to the antenna mount 'base' side.

That is how it is done in 'rag wing' fabric covered aircraft. 
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KCJ9091
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« Reply #4 on: June 22, 2012, 07:55:25 PM »

over the window:
http://www.universal-radio.com/catalog/hamantht/3757.html
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K2OWK
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Posts: 1077




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« Reply #5 on: June 22, 2012, 09:47:07 PM »

I sort of remember a Shakespear vertical antenna for use on a fiberglass boat, that does not require a ground. It should work on the Corvette if it is still available. I think they had one for the ham bands.

73s

K2OWK
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WD5CND
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Posts: 5




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« Reply #6 on: June 22, 2012, 10:15:56 PM »

Mounting is the greatest concern. Got to be a way to mount an antenna without any abuse/glue/drilling to car body.
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K5LXP
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« Reply #7 on: June 22, 2012, 10:22:11 PM »

Got to be a way to mount an antenna without any abuse/glue/drilling to car body.

When you figure that out, be sure to patent it.

Larsen sells a surface-mount half wave "no ground plane" antenna: OM150CK


Mark K5LXP
Albuquerque, NM
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WD5CND
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Posts: 5




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« Reply #8 on: June 22, 2012, 11:29:48 PM »

Have to think outside the box. Working on it. There has to be a way.
Dan WD5CND
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KCJ9091
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« Reply #9 on: June 23, 2012, 05:32:08 AM »

One ham's solution
http://forums.corvetteforum.com/c6-corvette-general-discussion/2694444-ham-radio-installation-in-c6-is-possible-and-easy.html
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KC9Q
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Posts: 49




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« Reply #10 on: June 23, 2012, 07:06:41 AM »

Look at the Larsen PO-150 No Ground Plane antenna for VHF: 1/2 wave design, 200 Watts max rating.  It has a UHF-Male connector; is used for portable operation or motrocycle operation.  Use it with a Trunk Mount with a SO-239 (UHF-Female) fitting.  No holes; no ground plane; no problem.

73,
Mike
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WD5CND
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« Reply #11 on: June 23, 2012, 07:38:33 AM »

No trunk it is a hatchback?
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KCJ9091
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« Reply #12 on: June 23, 2012, 11:07:07 AM »

One more then you are on your own.  Buy a frame mounted trailer hitch receiver.  Get the local welding shop to make a riser to go in the receiver and mount the antenna and a set of radial to the riser.  It'll look like crap but it will work.
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