[SixClub] Re: [50mhz] 6M power divider

[Bill VanAlstyne W5WVO]

Hi Gary,

FYI, I am using a 6M StackMatch II that I modified to add BOP (Both Out of
Phase) feed for higher take-off angles. It works extremely well. The phasing
is done with a simple half-wave (electrical) length of coax. I've been
meaning to write this modification up, but haven't got around to it yet.
Modifying the much less expensive StackMatch II (rather than the StackMatch)
involves purchasing and soldering in a fourth relay (plus of course several
cuts and jumps), but the relay is not very expensive and readily available
from a couple different components vendors.

During a strong opening this past winter, I was able to switch to BOP mode
and QSO several close-in stations (about 350 miles) who were much weaker on
the BIP stack than on the BOP. It does work! Of course you only get skip
that short a couple times a year, but it's cool to have the BOP mode when
you're trying to score those rare close-in grids.

Bill W5WVO


Gary - N3JPU wrote:
> Anyone have empirical numbers such as loss on power dividers for use
> on 6M? Specifically a 2 port device,
> Stripline Power Dividers verse Transformer coupled such as the Array
> Solutions StackMatch/mini-StackMatch?
>
> Looking for the most efficient method to feed a pair a pair of yagis.
>
> In the past I have used 75 ohm phasing harnesses (not so good, pretty
> lossy) and then an Array Solutions StackMatch II, I have not tried a
> Stripline splitter yet and am interested if they are workable for 6M
> verse other methods.
>
> Gary Mitchelson
> N3JPU Montgomery Co. MD  FM19
> USAF MARS and SHARES: AFA1PU/AFF1MD/AFF1M
> http://www.mitchelson.org/
>
> Moderator: Ray Brown, KB0STN
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