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Odd looking SWR
22 June 2025 | by 
My 10m sweep
My Hustler 4BTV has now been up to 5 years and I was thinking it was due time to take it down and give it a good cleaning. Before I do that I wanted to take a baseline SWR of each band and see if the SWR changes after the cleaning. I used my NanoVNA to take the SWR readings and in my opinion, my 15m readings looked a bit odd. I have posted a sweep of 10m and then 15m and you can see the large spikes in the 15m readings. I am not sure why this is and I am searching for some input.
15m sweep
2 Responses to “Odd looking SWR”
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looks like an external signal accross the freq.It may be picking up rf from monitors, pc’s local WSPR station etc.
Good morning David and sorry for the late reply it seems the Amateur radio site here was down. Thanks for the input and that is also the same feedback I have been getting on the Group.io reflector as well. Thanks for taking the time to reply.
Have a good weekend.
73,
Mike
VE9KK