Trying my hand at #HAMChallenge #hc19. Multi toot
1/x
What I learnt so far:
- modeling in GUI NEC is a trip back to the 90s UX.
- honestly. it was easier to model write a NEC file by hand
- eventually I automated nec file generation
- 4NEC2 won't reload changes to a file, even after exit, so I had to rename it. Eventually I found out how to do it, which was even more convoluted than renaming each new file iteration
7/x Setup 3: radials are evenly spaced, uneven length (the spacing gap is around the coax in the field)
#hamchallenge #HC19S @hamchallenge
Z = 56 - j10.8Ω
SWR 1.26 @ 50Ω 14.13 MHz
Rad eff 24.06%
Concluding this series of 4 sims:
- each step closer to ideal helps a tiny amount: better match, lower SWR, deeper null, symmetric lobes
- The compromised version seems fine for /P, since all these optimizations take time on the field and seem worthless, especially for time constrained operations.
