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
conditions..
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.
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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.
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I prepared threaded funnel, I fastened on
socket
and I protected before rain. |
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Here You can see details of mast handle. |
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Vertical element is protected before of unscrewing.
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I fastened the whole to mast and I bent
radials at an angle
about 35 degrees.
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Here all details of fixing. |
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Prepared antenna to tuning.
Tuning - I cut off verical element. Length depends of it performance
Every antenna lenght will be diffrent. |
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Still small detail - fixing of mast to
building. |
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Work ended - CQ CQ DX... |
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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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