n0mql.comJan 25
Callum, the #DXCommander, shared a YT the other day about A/B testing of antennas. www.youtube.com/watch?v=c845... I'll do one better, & use a #python script, written w/ #AI help, to auto-run un-attended overnight A/B #antenna test. "Keep a careful log of times you change ANT." No. PC does that.

RESULTS: What the Data Actuall...
RESULTS: What the Data Actually Says: Vertical vs Delta Loop on 40m

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Show threadn0mql.comJan 25
WSJT-x waterfall & WSPR decode window, next to a python GUI which switches antenna ports every 4 minutes, & keeps a running count of decodes, average SNR, max SNR, and unique calls. This is on 40m, but the ferrite antenna is for 160m. This was just to prove the script works. Building 40m ant now.
Show threadn0mql.comJan 26
Left this running all day. Could I make it gather more info? Sure. I could have it split the logs into two files, one for the "A" antenna, another for the "B" antenna, & use those to do all sorts of other analysis. I just wanted to prove the concept of unattended long-time comparison.
Show threadn0mql.com
Expanded what data is gathered/displayed. Added output of 3 local files, so I could do post-test analysis not unlike what Callum was describing.
Jan 26 at 4:30pmWeb
Show threadn0mql.comJan 26
Tonight’s (already running) A/B #HamRadio #antenna test is #160m #WSPR (RX only) between 6-80 #DXCommander vertical & this ferrite rod magnetic loop, indoors, on my bench.
Show threadn0mql.comJan 27
And the results? Well, at first glance, I thought the later, larger ferrite rod antenna was a dismal failure. 63 decodes vs 1 decode. But wait - the Unique column is 3 vs 1. We could chalk that up to omnidirectional vs an antenna with a couple nulls. 160m could've been dead last night.