ANTENTOP- 01- 2014 # 018

Antenna UA6AGW in Experimenters by RU1OZ

Figure 1 Antenna UA6AGW

Antenna worked well at the 18 and 14- MHz Bands. SWR was 1.2: 1.0 at the Bands. Pass Band was (at SWR 2.0: 1.0) 150- kHz at both bands. I made several CW and PSK- 31 QSOs with EU, Russia and Ukraine. As usual reports were 599 at the both ends.

Then I installed the antenna at my attic. The antenna was intended for 14 and 10-MHz. Horizontal wires were 3.5- meters in length in this case. Pass Band at 14- MHz Band was 230- kHz at SWR 2.0:1.0. Picture 2 shows the antenna in my attic. Coupling loop for the antenna was made from copper wire in diameter 4- mm. Length of the wire was equal to the diameter of the antenna UA6AGW (80- cm in my case). Coaxial cable RG- 58 (length 18- meter) was going from the antenna to my radio. Antenna was tuned to needed band manually by C2.

Picture 2 Antenna UA6AGW in the Attic

Antenna in attic had height near 8- 9- meter above the ground. Antenna worked well at all- seasons- at dry summer, at wet autumn and in the winter when snow blanket in 30- 50- cm thick was placed on the roof above the antenna.

Later a LW-Antenna in 41- meter length and at 7- meter height above the ground was installed at my location. The antenna was fed from the end by Fuchs method (see Reference 1). The LW was compared with Antenna UA6AGW. Program WSPR (that showed levels of the receiving stations on the computer screen) objectively proved the antenna UA6AGW advantage with the 41- meter length of wire antenna.

Reference 1

Josef Fuchs (OE1JF) Antenna: Patent Description

http://www.antentop.org/016/oe1jf_016.htm

Ex- Soviet Military Radio R-143

www.antentop.org

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