The lowest frequency band is tuned by the outer tips on the elements which
makes adjusting it the easiest one. if the swr is low enough but at too
high a frequency on 20m just lengthen the driven element tips a little bit
at a time until it moves down to where you want it. Don't be surprised if
it doesn't keep the same absolute swr at the minimum as interactions with
the other elements will change as you move the minimum point.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: towertalk-bounces@contesting.com [mailto:towertalk-
> bounces@contesting.com] On Behalf Of K8fu@aol.com
> Sent: Thursday, March 24, 2005 17:26
> To: towertalk@contesting.com
> Subject: [TowerTalk] A3S
>
> Bulletin.........................Bulletin..........................Bulleti
> n...
> ..............
>
> This the latest from the wires of the Associated Press and the K8FU
> newsroom.............................
>
> With the antenna raised to 50' the swr on 10 & 15 is 1.2 (Good enough for
> Govt work)
> But the swr on 20 is 2.5. How do I adj to lower the resonant freq to
> 14.030
> while maintaining current setting on 10 & 15 ?????? I've cked the spacings
> and overall element length. Everything within 1/4".
> Any ideas...........????
>
> Froggy.......................
> If CW is Outlawed..................Only Outlaws Will Have Keyers,,,,,,
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
> any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
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_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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