ANTENTOP-
01- 2012, # 016
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Vertical Antenna for 80-, 40-, 20-, 15- and 10-
meter Bands
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PK-1- Russian Coaxial
cable 77- Ohm
PK3- 3- Russian
Coaxial cable 75- Ohm
Feeding terminals are chosen
to best match of the antenna at all working bands. For the feeding
terminals there were obtained: SWR at the 80- meter Band
3...3.5; SWR at the 40-, 20- and 15- meter Bands- no more
the 1.5; SWR at the 10- meter Band- near 2.
Antenna made as an usual Ground plane antenna. Vertical Radiator made of
aluminum tubes in diameter 20- 35- mm. Four counterpoises attached
to the mast of the antenna with help of nuts insulators. Stub
of the antenna is radiated so it needs to be away from any conductive
subjects.
The antenna was tested at the
UB5UG radio station from July 1960 and it was obtained quarter
good results. Antenna works fine at 40- and 20- meter Bands. At
the 10- and 15- meter Bands the antenna works satisfactory (DD
of the antenna is radiated at too high angles). At the 80- meters
the antenna works also quarter satisfactory.
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Figure 2 Design of the Vertical Antenna
for 80-, 40-, 20-, 15- and 10- meter
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