ARRL EFHW Kit Mod
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| Oct 30th 2022, 23:04 | |
dan_spence@me.comTotal Topics: 0 Total Posts: 0 |
I’m considering replacing the 40m HW with approximately 134 foot wire to get 80 m and WARC bands. Anyone tried this? Seems like the 49:1 UNUN would stay the same. I would like your thoughts on this. Thanks, Dan |
| Oct 31st 2022, 12:19 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
https://vk3il.net/projects-antenna/multiband-end-fed-80-10m-antenna/ He provides a NEC model |
| Oct 31st 2022, 19:27 | |
dan_spence@me.comTotal Topics: 0 Total Posts: 0 |
Thanks. That’s interesting. I’m still hoping to replace the the wire from the ARRL kit with a longer one. No traps, just wire. |
| Nov 1st 2022, 07:38 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
The harmonic resonant frequencies are typically higher than desired, so a compensation coil is added to move them down. https://www.eznec.com/This program is now free. It can be used to investigate ways of aligning the resonances to selected frequencies. |
| Nov 1st 2022, 08:45 | |
dan_spence@me.comTotal Topics: 0 Total Posts: 0 |
Thanks |
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