Well, the challenge gave me a good start to the year, with 4 activations on 80m. ‘Must try harder’ for topband!
I found that my 80 - 60 - 40 linked dipole would not tune up on 160m. The next experiment was to use loading coils. I took note of Colin @M1BUU’s inductance measurements of his adjustable loading coils (85 - 110 micro Henries).
I thought that if I wound some to the lower end of these values, eg 85 micro Henries, that would bring the dipole closer to resonance, and the Elecraft T1 tuner would then match it.
However, I wound the coils on some ferrite rod of unknown provenance, so it might just be that it is horrible at 1.8 MHz. I’ll have to investigate further, probably with an analyser to see what is going on.
Caradoc G/WB-006 (feint rainbow to the left)
Unsuccessful loading coils
All contacts are really appreciated, so thanks to everyone who took the time to call me.
I don’t currently have a plan for the Data challenge, but I’m following other’s ideas with interest.