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
Fine. @hamchallenge really wants the rest of the simulations for #HC19S
6/x
Setup 2 is just like Setup 1, except the radiator is now straight. So we have:
- Uneven radials, varying between 80 and 120% of the length I use
- the radials cover only 270° and have variations of a few degrees from their ideal location
I'm omitting the donut here and posting a comparative view with setup 1 (red) vs this one (blue)
Z = 56.2 - j8.45Ω
SWR 1.22 @ 50Ω 14.13 MHz
Radiation eff 24.02%
