[TowerTalk] book Tribander comparison test

Jim Brown jim at audiosystemsgroup.com
Tue Mar 1 17:05:24 PST 2011


On 2/25/2011 8:14 AM, Mike Fatchett W0MU wrote:
> I agree on the F/B issue.  I built a long boom 15m yagi years ago that
> worked great.  I pointed it to JA from Colorado and it was quiet off the
> back so much so that stations would constantly move in on my frequency.
> For working big pileups simplex the F/B helped wipe out some of the
> qrm.  For most of my operating, I prefer max gain out the front and I
> will take whatever F/B as long as the pattern is decent.

I have had the same experience on 160M working JA. I have a vertical 
that gives me a dB or two in that direction, but I don't use it much for 
that reason. The only time I want rear rejection is for receiving to 
minimize noise. Indeed, I know serious contesters with multiple yagis 
for the same band who often point one at the DX with 1400W  and another 
at their competition with 100W.

73, Jim K9YC


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