[TowerTalk] Fwd: Bandwidth of a 1/4wl 80m vertical

Glenn Thorne gathorne at traer.net
Fri Mar 20 13:56:45 PDT 2009


What kind of caps and values did you use?

Thanks.

73, Glenn/KD0Q
----- Original Message ----- 
From: "Richard (Rick) Karlquist" <richard at karlquist.com>
To: <miroslav.sibilja at amis.net>
Cc: <HansLG at aol.com>; <>; "jimlux" <jimlux at earthlink.net>
Sent: Tuesday, March 17, 2009 10:04 AM
Subject: Re: [TowerTalk] Fwd: Bandwidth of a 1/4wl 80m vertical


> Mirko S57AD wrote:
>> Well, how about approach, emtioned even in ON4UN's book - make vertical 
>> resonant in CW part of band, short it with series capacitor to be 
>> resonant in SSB portion of the band. Relay, switching in shortening 
>> capacitor may (at CW portion of band) add piece of phasing line to keep 
>> correct phasing at both portions of the band.
>> 
>> 73  Mirko, S57AD
> 
> I have an inverted vee with this setup.  Works great.
> 
> Rick N6RK
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