Brand NEW un-open box. Modeled off the Opti beam OB7-3
One In stock and can be picked up at Emu Plains 2750
We are currently importing these antennas direct from the Manufacturer. This is a 7 Element Yagi. It is similar in Design to the Optibeam Antenna with 2 elements on 20, 2 elements on 15 and 3 on 10 meters. The gains expected 13, 12, 11db respectively.
Very Quick and easy to assemble
We are also in discussion to build larger antennas soon
I have one installed 4 meter above the ground with excellent results on all bands. To reach the full potential performance on this antenna 6 meters or more in the clear is better.
Balun Power: SSB 2000w, FT8, below 1000w
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Bands |
20 / 15 / 10 |
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Gain (dBd) * |
4,2 / 4,3 / 5,5 |
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Gain (dBi) ** |
11,5 / 12,0 / 13,1 |
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F/B (dB) |
15 / 15 / 30 |
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VSWR |
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14,00 - 14,19 - 14,35 |
1,5 - 1,0 - 1,4 |
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21,00 - 21,25 - 21,45 |
1,6 - 1,0 - 1,4 |
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28,00 - 28,50 - 29,00 |
1,2 - 1,0 - 1,5 |
Main beam length: 4.12 meters long
The longest vibrator: 550cm single side
Net weight: 16kg
Mast diameter; 30-50mm
Turning radius: 750cm
Installation height: more than 6 meters
Packing length: 180cm
Click on links below
Attached contacts show what can be achieved from Sydney Australia.
Unboxing assembling
7 Element up and testing
We will also soon be reselling the Cobweb with 4 bands 40, 20,15 and 10 meters with a new balun rated @ 1.5KW. Available soon
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