5 to 28 MHz Random wire antenna – 12.8m (42 ft)

Some time ago I had a S2S-QSO with N1ZF. In the following e-mail contact we exchanged information and photos about the antennas used for this QSO.
This is when I became aware of the „Random Wire Antenna“ that Paul had successfully used. It consists of a 12.8 metre long wire as radiating element and an equally long ground radial. Matching is done with the KX3’s internal ATU. Since the ATU cannot match any impedance, it is important to choose a wire length that is not a multiple of half a wavelength. This way the „odd“ length of 12.8 meters emerges.

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DM/BW-664 – Wasserberg – 751m (2)

Abstract

November 14, 2020  13:10 – 15:10 UTC
My second activation of Wasserberg.

Wx: Sunny, approx. 12°C, few clouds
Walking time: 20 min. up, 12 min. down
Ascent/ descent: approx. 160 vertical metres

Rig: KX3 / 10W, 2.5Ah Li-Ion battery (4S), Palm Mini Paddle
Ant: 42 ft (12.8m) random wire as inverted Vee on a tree.

Conditions seemed to be good. The OK/OM contest caused some QRM on 20 CW and 40 CW.

3 CW QSOs on 60m
11 CW QSOs on 40m
6 SSB QSOs on 40m, 1 x S2S
13 CW QSOs on 30m, 1 x S2S
11 CW QSOs on 20m, 2 x S2S, 2 x DX
6 CW QSOs on 17m, 4 x DX

Highlights:
worked some NA- DX on 20m and 17m

Lowlights: None

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Trans-Atlantic S2S QSO Party from DM/BW-110 – Limburg– 598m (2)

Abstract

November 7, 2020  13:00 – 16:10 UTC
My second activation of Limburg – this time for the Trans-Atlantic S2S QSO Party.

Wx: Sunny, approx. 11°C, no clouds
Walking time: 25 min. up, 15 min. down
Ascent/ descent: approx. 200 vertical metres

Rig: KX3 / 10W, 2.5Ah Li-Ion battery (4S), Palm Mini Paddle
Ant: 42 ft (12.8m) random wire as inverted L on a 6m squid pole with a single radial

Conditions on the higher bands were very good. Even 15m was open to NA.  SFI = 94 (thanks to sunspot 2780 and 2781!) k = 0

2 SSB QSOs on 60m, 2 x S2S
17 CW QSOs on 20m, 5 x S2S (3 x NA)
20 CW QSOs on 17m, 12 x S2S (7 x NA)
1 CW QSO on 15m, 1 x S2S (1 x NA)

Highlights:
Worked 11 NA chasers, the farthest N6WT in CA
11 NA S2S QSOs, the farthest with WA7JTM on W7A/MN-154 in AZ

Lowlights: None

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