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VSWR In Alaska!

SomeRadioGuy

SomeRadioGuy

One thing that kinda surprises people about KSKO here in west central Alaska is that I have zero problems with VSWR.

95+% of the time, it’s either too cold for anything but snow or too warm for ice/sleet/freezing rain.

It just gets really cold and lots of frost on things sometimes.

The most VSWR I’ve seen on my BW TX 300V2 from my broadband Scala FMO turnstile is 2 watts but it’s usually sitting right at 0W, sometimes 1 Watt out of 180W TPO.

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Where I volunteer here in Albuquerque, 400 Watts out on a 20m beam. 5 Watts back. Weather a little different from Alaska, but low humidity is good for keeping moisture out of the coax.
 
Are you sure the TX is running into the antenna? Chances are the listener may not notice and let you know.
 
btw with 180 watts forward, 1 watt reflected is 1.16 VSWR.
When I observed engineers working on this, their goal was 1.05
No one wanted to see (for example) 100 watts reflected coming back from 25 KW forward.
In a combined system this can get uncomfortable quickly, because cumulative reflected power heats up dummy loads, or can come back into HD transmitters in a "separate" configuration.
 
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