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Re: [TowerTalk] Was "43ft Vertical Feeding

Subject: Re: [TowerTalk] Was "43ft Vertical Feeding
From: Pete Smith <>
Date: Mon, 24 Nov 2008 10:08:05 -0500
List-post: <">>
At 09:33 AM 11/24/2008, jimlux wrote:
>Pete Smith wrote:
>>What am I missing here.  You need to cover 8 bands - surely a set of 
>>switched L networks, including several for band segments on 160, 80 and 
>>40, could be built for much less than any automatic tuner capable of 
>>handling the power.  You're not looking for continuous coverage 1.8-30 
>>MHz, after all.
>>73, Pete N4ZR
>A couple years ago I ran through a design exercise on just this approach, 
>and it turns out that it's about the same, either way.  The typical L 
>network autotuner has 7 or 8 L's (and their relays) and 7 or 8 C's (and 
>their relays) (the SGC with a pi network has more C's, total).

My point wasn't to run an economic exercise here, but to suggest a DIY 
approach.  Besides, the commercial tuners all involve enclosures, fancy 
control systems, and (gasp) profit.

73, Pete


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