Hi Charlie, A quick question. In the title of this EFHW tuner, it says 80m,40m,30m,20m, but in the handwritten notes, it shows 80m,40m,10m. Which is it please? Hopefully it covers 10m, but I can always make another for the higher bands. 73 Graham CT7AXD
Hi Graham. The ATU tuned up the 41m antenna and 7.5m counterpoise on 80, 40, 30 and 20m. I fully expect it would tune up 10m with a shorter antenna, as that antenna would present the same Z to the tuner.
Hi Charlie,
ReplyDeleteA quick question. In the title of this EFHW tuner, it says 80m,40m,30m,20m, but in the handwritten notes, it shows 80m,40m,10m. Which is it please? Hopefully it covers 10m, but I can always make another for the higher bands.
73
Graham
CT7AXD
Not sure if you saw the last video with the VNA.
DeleteWill have a look
DeleteThanks.
Hi Graham. The ATU tuned up the 41m antenna and 7.5m counterpoise on 80, 40, 30 and 20m. I fully expect it would tune up 10m with a shorter antenna, as that antenna would present the same Z to the tuner.
ReplyDeleteWill give it go and see what it can do, and with a shorter aerial for 15m - 10m.
Delete73
excelent very easy to follow your design. thanks
ReplyDeleteI'm pleased you found it useful Felix.
DeleteHi Charlie, Can you please tell me the specs/rating for the small meter you used.
ReplyDeleteHi. It came out of an old piece of military equipment. No specs sorry. I'd experiment with what you have at hand.
Delete