[ICOM] Correction - ATU Mobile

Michael P. Olbrisch mike2004 at elp.rr.com
Fri Mar 10 18:20:51 EST 2006


 

> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of William Lambing
> Sent: Friday, March 10, 2006 6:17 PM
> To: ICOM Reflector
> Subject: Re: [ICOM] Correction - ATU Mobile
> 
> A screwdriver will work better than hustlers and do not 
> require you to get out of the car.

I disagree.  Run it and see.  It is quite simple - a center loaded antenna
(Hustler) will out perform a base-loaded antenna (Screwdriver).  You can
play with the efficiency of the coils a bit, but the results aren't worth
talking about.

Furthermore, because of the profile, you can run the hustler higher up on
the body without excessive wind loading.  Can't do that with a screwdriver.
I have seen some real amusing gyrations with folks trying to support the
screwdrivers at highway speeds.  Then again, I have seen what happened to
the ones who didn't support them.

Running the ICOM tuners (AH-3/4) broadbands it a bit, but essentially makes
it a base loaded antenna again.

There really is no one good antenna for mobile, everything is a compromise.
Good S-model Hustlers work as well as any and better than most.  But then
again, anything short of a 1/4 wave is a compromise.

Mike.  KD9KC.
El Paso, TX.




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