Simple antenna of GP type
Antenna mobile TRX FM 2 m is small efficiencies. I decided to make straight external antenna from easy accesible
materials and straight to make at home
Dimensions are limited diameter of mast only. Vertical element and radials for 2 m band I made from aluminiums' about diameter 6 mm (1/4") and length 50 cm (~20") (for different bands dimensions will be different).
Antenna is very simple,that I limited description to minimum adding more pictures. Click on thumbnail to see pictures.
|I started first from building of head. I used stainless steel
I bored hole for socked. Next four holes for radials.
Next two holes for mast mounting. All are 6mm (1/4") diameter.
|I prepared threaded funnel, I fastened on
and I protected before rain.
|Here You can see details of mast handle.|
|Vertical element is protected before of unscrewing.
|I fastened the whole to mast and I bent
radials at an angle
about 35 degrees.
|Here all details of fixing.|
|Prepared antenna to tuning.
Tuning - I cut off verical element. Length depends of it performance
Every antenna lenght will be diffrent.
|Still small detail - fixing of mast to building.|
|Work ended - CQ CQ DX...|
This antenna no one should to expect cool. It results this from rule of working of antennas of this type. But simplicity realizations, small dimensions, easy assembly, możliwość zabrania w teren przemawiają za tym, że warto poświęcić chwilę.
8.02.02 © J.A. Karabowicz
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