Just remember that many mobile antennas like the popular fiberglass whips
can't take over 200 pep. The heavy duty hustler coils and the heavy duty
and quite large and bulky screwdriver types can handle more also. If you
drive a veichle on which a large antenna is easy to mount and you dont care
about style (pickup, motor home, semi, etc) then high power in a mobile is
ok. Just remember that the size limitation of the mobile antenna limits the
signal capture area so you cannot hear quite as well with a mobile
especially at the lower frequencies and you cannot fix that so if you cannot
hear em you cannot work em even with a killowatt. I run 100 watts mobile
with a small screwdriver type only 5' tall and work European stations all
the time on 20 meters. Stateside on 40 I get around 600-700 miles and 300+
miles on 80. Also my friends with mobile amps say operation is very touchy
and if swr gets much over 2 to 1 even for a second while tuning the amp is
likely to blow finals. This is expecially true with worthmore amps and the
Ameritron units can fail also.
Jim in Waco WB5OXQ
----- Original Message ----- From: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>
To: <tentec@contesting.com>
Sent: Tuesday, August 03, 2004 11:23 AM
Subject: [TenTec] 100 w. mobile rig
> It seems to me that if a serious mobile HF operation is to be undertaken,
> you would either want a minimum of around 200 watts which the new Kenwood
> provides, or a lower exciter type level to drive a solid state linear amp
to
> around 400 watts. With band noise, bad conditions, and the difficulty of
> having anything near a decent antenna on a motor vehicle, you have to run
> some power to give yourselves a chance, or, operate 6 and 10, and wait for
a
> really good band opening.
> I'd vote for a ten tec 50 watt rig and a ten tec 400 watt amp. Then you
> have all the possibilities available.
>
> Rob/K5UJ
>
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