Topband: Verifying integrity of 75 ohm coax.

[Gary Smith]

I'm trying to eliminate issues with my Rx array and I'm getting 
birdies that are not heard on the main antenna. If the problem is 
faulty coax/connectors due to bad work on my end or the help of tree 
rats that didn't run at the smell of coyote urine then I have my 
answer. If all is well on my work/cables then the next step is 
sending the electronics back to the company for exam & recalibration. 
All the connectors are Thomas & Betts Snap&seal 6QS type but this was 
my first attempt using them as well as the installation tool.

Gary
KA1J

> What is making you believe you have a faulty 75 ohm coax?
> 
> I would hang a 50 ohm dummy load on it at the end of the cable that
> goes to
> the antenna and load it to the same power level you have the problem
> with.
> 
> Then move the dummy load to the next joint then the next joint and
> so on
> and do the same test.
> 
> Verify and re-verify. shack and move connectors to see if it happens
> again.
> 
> Replace bad section.
> 
> My guess, and I have guessed wrong many times is a bad connector
> joint.
> When this happens I replace the cabe and connectors and start all
> over with
> new.
> 
> -- 
> Jim K9TF
> _________________
> Topband Reflector
> 




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