"SideBand" wrote in message
m...
H. Adam Stevens, NQ5H wrote:
"David G. Nagel" wrote in message
...

Reg Edwards wrote:


"SideBand" wrote in message
y.com...


Anyone out there know of any decent solution to getting 160M working in
a mobile? The application is a semi-truck. I've got the Iron Horses for
75, 40, 20, 15, and 10M, but I'd like to work something out for 160
meters that will work on the truck.

I know I'm going to take an efficiency hit, but you're doing that for
everything except 10M on a Semi anyway.. Just so I can get a signal out
there to be heard, in the off chance.

ANY suggestions or ideas would be greatly appreciated.

73 de AI8W, Chris

=============================

For design and performance of a 160 meter band vertical antenna,
download
program HELICAL3 from website below. There are other loaded vertical
programs..

Use 1.5" or 2" diameter plastic pipe, with helical winding of thick
enamel
insulated wire, mounted on vehicle roof, as tall as possible, stayed,
with
short, top caapacitance tuning rod.

Range on 160m with a few hundred watts = 100 miles at noon on
groundwave.

1700 miles on very quiet, wiinter nights at midnight via F-layer.
----
.............................................. .............
Regards from Reg, G4FGQ
For Free Radio Design Software go to
http://www.btinternet.com/~g4fgq.regp
.............................................. .............



Chris's problem is that he has to keep the tip of the antenna below about
13.5 feet from the ground to be legal with the various DOT's.

Dave WD9BDZ


Chris
Must the antenna also only mount on the tractor?
I just thought of a multi-turn loop, corners as far forward and back,
wide as possible, above the cab.
Use a tuner and balanced feed.
73
H.


That's an idea, but most balanced tuners I know of are manual only, and
it's hard enough keeping a 70-foot long, 80,000 lb vehicle on the road
without trying to tune, too..

Thanks for the idea.

de AI8W, Chris
You don't have to use a balanced tuner.
Terminate the loop into the truck body.
What auto tuners cover 160?
I never checked.
73 es gud luck
de NQ5H