[Mobile-Portable] Mobile antenna tuner questions

[JOHN DOBSON]

I beleive what g0gqk is stating is that, in general, mobile antennas are not
that effecient, and while we may feed 100 wts into a 20 mtr antenna,,, the
effective radiation of that antenna would be around 30%,(or less), hence the
30 watt figure--this is all in generalities, and approximation.
cheers  john w8wej
----- Original Message ----- 
From: "JV" <kt4u at adelphia.net>
To: "Mobile-Portable Reflector" <mobile-portable at mailman.qth.net>
Sent: Thursday, February 09, 2006 19:23
Subject: Re: [Mobile-Portable] Mobile antenna tuner questions


>
>     Sorry, I am going to disagree with you on your statement that a 20 M
> mobile antenna
> only radiates 30 watts. I county hunt with a modified Hustler and at the
> base of the antenna I have
> 100 watts from my IC-706MKIIG. The antenna is mounted on the roof in the
> center of my Cherokee.
> JV
> =============================
>
> Hello,
>
> In answer to your question, you would be better off
> buying used Hustler mobile antenna's, they work as
> well as any. It is essential that mobile antenna's are
> self resonant at the chosen frequency,using a
> stainless steel whip and a tuner would be an induced
> resonancy, and would be a very poor antenna on every
> band. Even the best mobile antenna's are so
> inefficient that a 100 watts from the rig means that
> on 20 metres only about 30 watts or less is being
> radiated, and on 80 metres it amounts to about 1 watt
> !
>
> G0GQK
>
> ----
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>
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