52 Week Ham Radio Challenge 2026 - Status for DF1CN@social.darc.de

All Status Updates Mentioning @hamchallenge

DateChallengeStatusToot Summary & Link
January 15, 2026 01:44 UTC3Success!After failing to fall asleep I spend some time on the current #hamchallenge. I have a 27.5m long ZS6BKW antenna. Based on that the antenna should resonate at 5.45 MHz. Since the feedline isn't matched it acts as an impedance transformer. If the I include that in the calculation I get the second plot. Which looks quite close the the plot of the NanoVNA. The plot suggest that the often quoted length of 12.2m is not optimal and a longer feedline should be used. I will keep that in mind when I need to work on my antenna again. HC03S @hamchallenge

Summary of completed challenges

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