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One Man – 18m Antenna – The Final Story

One Man - 18m Antenna - The Final Story

Finally, the results are in. I don’t think I could be more delighted and I can’t wait to move so that I can have my very own in the new antenna field. As discussed, here is the cut chart as used in this video:

80m – up 17.2m – back 4.83m and then a little loop of 10cm (22.13m in total)
60m – 12.86m plus a loop for the carabiner of 6cm
40m – 9.81m plus a loop for the carabiner of 6cm
30m – 6.82m plus a loop for the carabiner of 6cm
20m – 4.86m plus a loop for the carabiner of 11cm (you could probably do 4.88 + 6cm)
17m – 3.81m plus a loop for the carabiner of 5cm

Changing Frequency by 50kHz (cut for higher freq / extend for lower frequency):

80m – changing the frequency of the linear loaded return is not same as changing the overall length. 50cm will move frequency by 50kHz.
60m – 12cms will move resonance by 50 kHz
40m – 6.87cms changes the resonant frequency by 50kHz
20m – 1.75cm required for change of 50kHz
17m – You only need to change the length by 1cm to achieve change of 50kHz

00:00 Start
00:47 Why Neboola?
1:27 Construction
5:05 80m construction
6:45 11m and 10cm issue
8:51 SWR Curves
#dxcommander #neboola #extreme