[TowerTalk] Cushcraft XM-240 problem

Patrick Greenlee patrick_g at windstream.net
Fri Oct 9 11:47:47 EDT 2015


You really gave me a chuckle.  No, not your plight but the associated 
memories it kicked off: 1. trying to trouble shoot a piece of gear that 
was accidentally unplugged, and 2. trying to build/trouble shoot a 
simple 100 MHz oscillator to be used in a test jig while using an 
O'scope with a defective vertical amplifier that was intermittently 
oscillating at 100 MHz. Luckily I am not prone to depression/suicide or 
the scope thing may have done me in.

Patrick        NJ5G

On 10/9/2015 10:29 AM, Russ Dearmore via TowerTalk wrote:
> Steve,  I was having similar problems in which logic was no help and it turned out that my MFJ antenna analyzer was bad.  Since then my bread and butter analyzer is the iPortable iP60z.  I now have 2 analyzers and it has saved me a lot of time for sure.
>
> Also once when I was really stumped it turned out that I had fried my coax switching relay.  After that I use single coax runs exclusively.  Both problems produced weird resonance dips.  These problems shouldn't have been that hard to figure out but I made it a real circus by trusting bad equipment.  Hopefully you have been able to verify your test equipment and they are good.  Sorry if my reply is too simplistic....  Russ     K5ZZR   My Heroes Wear Combat Boots!
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