Sunday, October 17, 2010

D1E1740 Dual-band Rotary Dipole.

Type of antenna : rotary dipole
Resonance Freq : 17m and 40m dual band 
Center Freq : 7.070MHz and 18.100MHz
SWR: less than 1:1.2 
Total weight : less than 5 Kg
Total Length : 15 meter (End to end)

The rotary dipole was 
under the 4 element yagi ,
no guy wire needed .

Coil made from 3mm aluminium wire ,
13 uH per coil.

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