ANTENTOP- 01- 2014 # 018

Field Antenna UA6AGW V.40.21

Picture 7 Parameters of the Field Antenna UA6AGW V.40.21

Picture 8 Screen Shot SDR Transceiver with Antenna UA6AGW V.40.02

Picture 9 Screen Shot SDR Transceiver with Antenna UA6AGW V.40.21

Noise difference between the two antennas was from 5 up to 10- dB. Noise increased when Antenna UA6AGW V.40.21 was rotated in direction to the central part of the city. Then antenna UA6AGW V.40.21 was oriented to minimum of the noise. At the position the Antenna UA6AGW V.40.21 (compare to Antenna UA6AGW V.40.02) gives advantage at reception of weak signals.

Test at 4-meters height.

At height 4- meters above the ground antenna UA6AGW V.40.21 worked in the same way as at 6- meter height above the ground. No detuning in the resonance frequency was found. Antenna provided reception with low noise at day time period.

It was found very interesting property of the antenna UA6AGW V.40.21. At evening time the antenna provided reception of the nearest stations with lower level compare with Antenna UA6AGW V.40.02.

Stations, placed at radius 400- 500- km, were received lower then 10- dB. Stations, placed at radius 400- 800- km, were received lower then 5- dB. Stations placed at distance 1000- km and more from the antenna was received with the same level as with Antenna UA6AGW V.40.02.

Summary

Antenna UA6AGW V.40.21 could work at a small height. The antenna takes small room. Antenna made from low- cost materials. Antenna is easy to tuning and installations.

Reference

1.      http://www.antentop.org/017/ua6agw_md_017.htm

73! UA6AGW

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