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.
TowerTalk mailing list