[Mobile-Portable] Thoughts on inverted "C" on car?

Tue, 9 Mar 2004 11:28:36 -0800 (PST)

I brought this idea [similar] up on the glow bug list
and they took the time to explain how back in the ol'
days there was a lot of 160 meters ran by taking a
whip type antenna and bringing the top down to the
front bumper.  
There were two methods;

a) Whip is insulated [top] from car 

b) Whip is electrically connected an forms a loop

I can see if I find some old notes or maybe some of
the more experienced mobileers can elighten us...

73  Chuck AA8VS

--- DavidE Benedict <[email protected]> wrote:
> BELOW IS THE BETTER WAY TO HAVE DONE THIS
> MESSAGE...I MESSED UP IN
> REPLYING WITH THAT LAST REPLY, SORRY...
> DAVID
> 
> 
> Hey that's another great way to skin a cat!
> 
> WorldRadio (a' la the ham magazine) sells a 4 foot
> collapsible 20 foot
> fiberglass pole... but it may not bend enough to get
> under the
> overpasses...it's a tapered pole and about 1 or
> 1-1/4 inches at the
> base...good for mobile/portable, though, I am sure.
> 
> David
> w7dbh
> 
> 
> [email protected] writes:
> >I haven't completed the project yet, but I bought a
> Crappie Pole (16')
> >from Wallmart for about $20.  I plan to create a
> bumper mount that can
> >support it.  While I am experimenting with solid
> aluminum wire, you
> >might try with copper, but I plan to run the wire
> from the mount thru
> >the top loop on the antenna, use "guy string" to
> pull it towards the
> >front bumper as I have seen military jeeps use in
> the past (One wire to
> >left front bumper, one to the right forming an
> inverted vee with the
> >string.)  The whip will be pulled down enough to be
> legal on the
> >highways and maybe just a few inches more.  This
> will give me a full 1/4
> >wave on 20 meters.  Since I am not using a tuner, I
> am wrapping some of
> >the wire around the base near the connection with
> wide-spaced coil.  The
> >pole is about 1 1/2 ft short.  
> >
> >I understand that there are also 20' crappie poles
> by the same
> >manufacturer, but Walmart doesn't sell them.  With
> a 20 Footer, I would
> >not need the coil.  Since you have a tuner, you
> would have a great all
> >band antenna.
> >
> >Buck
> >NA4FM
> >
> >> -----Original Message-----
> >> From: DavidE Benedict [mailto:[email protected]] 
> >> Sent: Tuesday, March 09, 2004 1:08 PM
> >> To: [email protected];
> [email protected]
> >> Subject: [Mobile-Portable] Thoughts on inverted
> "C" on car?
> >> 
> >> 
> >> You guys have a ton of good experience. Great to
> see these reflectors.
> >> 
> >> I have installed an Icom AH-4 tuner and it works
> 80-6m using 
> >> a 102 inch whip which is mounted atop the rear
> corner of my 
> >> station wagon roof. I got the grounding problems
> taken care 
> >> of. (By the way, I mounted the AH-4 on the
> headliner in the 
> >> old stationwagon/hamshack, positioned directly
> under the whip. 
> >> 
> >> My thought now is to mount another metal pole 
> >> (insulated/unterminated) at the front bumper area
> and string 
> >> a wire between their tops just to get more wire
> in the air 
> >> and to maybe tune 160m. My total "wire" length of
> the 
> >> upside-down "C" would be about 25-30 feet.
> >> 
> >> I suspect that there may be a better/lower
> take-off angle but 
> >> also that I may incur some marked directionality.
> If it has a 
> >> marked directionality I could maybe use it only
> when parked/mobile....
> >> 
> >> Any thoughts about this scheme?
> >> 
> >> Anyone try this before? Modeled it?
> >> 
> >> David
> >> w7dbh
> >> 
> >>
>
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> >> 
> >> 
> >> 
> >
> >
> 
> 
>
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=====
Chuck Mabbott   
http://www.aa8vs.org/aa8vs

Whoever says, "money can't buy you happiness" 
should turn their savings over to me, then stand
back and be prepared to stand corrected.

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