Inside-the-vehicle HF antennas.

[Pete Barth]

1)  For years now I have built a unique rx. am/fm antenna UNDER my
beautiful red '65 Alfa Romeo Spyder Veloce.
I didn't want to pierce the body to install the antenna so I ran coax
under the car and ran one wire from front to back under the car about
three inches from the chassis. It works. No hash, no fading.
2)  From '74 to '89 I installed a loop all around the top of my 28
foot RV. Fed with balanced line thru a Johnson 500 Matchbox. But I did
run around 100 watts. Loaded on all bands, It got out, not sure how
efficient. Fiberglass roof.
Every two years a tree would wipe it out. Also always had a Hustler
whip on the rear bumper too.
3)  On my BMW cruiser I had a Icom 706 with remote head into a
screwdriver. Ran copper 2 inch strap from the front wheel all the way
back to the rear box. Ran 80 thru 10 with a separate second mike in my
helmet. Most efficient when I also ran a trailing stringer
counterpoise with # 28 wire and a cloth cloth strip at the end to hold
it up into the air.
I had a Palm paddle and a miniature Morse Express Christmas straight
key on the right handlebar right next to the throttle.
Late at night on the interstate at 70 mph, with the cruise control on,
would work 20 meter CW. I signed W6LAW/ MM.
People would say Maritime Mobile?? I would say no, motorcycle mobile.
Also had 2 mtr./ 220/ 440 mc to three separate whips up high on a
panel to rear of the back luggage box.
Box had all the radios/ booster gel cell battery.
I had only one problem.... the RF would sometimes knock off the cruise
control on 15 meters when I ran 100 watts. Bypass caps/ filters never
did cure it.
The trailing wire really did help tho. It would lay down on the ground
when I stopped, and would sometimes get snapped off. I had many spares
ready. The MARC (Motorcycle Amateur Radio Club) out here in southern
california got me started on this thing.
I will try a loop around the rear plastic rear window on the rag top with my K2.
===================
I?m dealing with one of the last unsolved problems in amateur radio:
how to operate HF mobile without an antenna. At least not one that,
according to some vehicle co-owners/spouses, would defile your new
sedan.
For 10 bonus points that have only philosophical value, your challenge
is to create an invisible mobile antenna and actually make a QSO on
it. For practical purposes (i.e., not frying the car or passengers)
let?s say the maximum power level is 10 watts. The bands of interest
are 40-10 meters.
--
Pete / พีท / W6LAW
323 460-7018    Hollywood home
323 461-7018    Pete cell
559 800-7897    Fresno home
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