[TowerTalk] Distance from exciter, amp, tuner, dummy load, antenna

[Jim Brown]

On Mon, 09 Aug 2010 13:10:01 -0400, Roger (K8RI) wrote:

>I think I can get around this by adding a coax switch (Alpha Delta - 2) 
>between the amp and tuner, so instead of selecting the dummy load on the 
>aux position, I just use the coax switch. It means two switches instead 
>of one and I've been trying to keep it simple.  The original Alpha Delta 
>- 2 switch between the exciter and amp that allows selecting the exciter 
>or antenna analyzer would stay in place. I've had very good luck with 
>these switches.

My results have been mixed. When they work, they're fine. I have five 
1x4s. I One came with a mfg defect that made the #4 position not work, 
and it could not have made it through final test if there was a final 
test, so there must have not been a final test. :)  I have another that 
went bad, again with a position that doesn't work. 40% failure rate puts 
them in MFJ territory. :)  On the other hand, when they do work, the 
signal path is good enough for 2M. Maybe even on 440 -- haven't measured 
it carefully. 

73, Jim K9YC