On Thu, 7 Apr 2005 00:21:10 -0500, "bw" wrote:

"Don Foreman" wrote in message
.. .
On Wed, 06 Apr 2005 03:58:29 GMT, Gunner
wrote:

Actually..the only one in this park is on my truck. I do have a spare
K40 48" whip somewhere around the homestead, and Ill dig it out this
weekend and make up a mount and run some coax and give it a try.

I don't know if this would work or not, but it's certainly stealthy.
It depends on the RV not being grounded to RF. If it is grounded to
the utility, an RF choke in the ground line would fix that: just a
few turns of #14 on a large ferrite toroid. I can send you a toroid.

Think of the RV itself as a fat whip. It is certainly more than 4
feet high. It will have a large capacitance to ground, but a whip
is just a capacitive E-field probe and radiation resistance for short
antennae is very very low.

For "ground", you then create a counterpoise on the ground under the
RV. It could be a length of wire, radials, or even chicken wire. It
is out of sight and essentially invisible.


There's a business idea, the "Mobile Home" mobile antenna.
Better get your trademark filed.

If you see an op here, feel free to pursue. I'll say again that I
don't know if this would work or not.

Theory can be very useful and I use it a lot, but proof is when
ideas are tried and found to work or made to work -- or found not to
work with experimental evidence that clearly shows the idea is flawed
and should be scrapped. The latter case is progress if the
experiments were done well because it serves to focus energy forward.
The trick is to persistently pursue good ideas while drowning the
weak doomed pups ASAP. Popular opinion (as from marketing pukes)
can be the worst possible gage for such decisions.

I'm a retired research puke and prolific inventor with I forget how
many patents, all assigned to corps who care about such truck. I
don't own any and don't want to own any. Inventing is easy,
converting inventions to money is work and defending patents is
expensive.

I retired to fart around and I'm enjoying the hell out of it. I'm
in give-back mode now. I'm also in NIU (nothing is urgent) mode.
I can still get urgent for those that care to pay me enough to get me
off me enjoyably indolent retired arse, but that doesn't happen much.
I didn't book 200 hours last year and I expect to do somewhat this
year. Gone fishin'. Iceout is imminent in MN.

I have a ground wire RF choke toroid sitting here on the bench with
Gunner's name on it. It's 48 mm OD, 35mm ID, 9.5 mm thick. Jerry
Martes sent me several such ferrite toroids and I'm glad to share.
I'd even pay postage because I'm curious to see if this would work.
I think it might, but I don't have an RV to try it with.

I expect that Gunner will find field-expedient quickfix.