antenna ham radio
Can a Ham Radio G5RV antenna be mounter to an alluminum mast?
I have a G5RV mounted on fiberglass mast poles at present. I need to increase the height of the antenna but cannot because the poles are two flexible. I am considering using more sturdy aluminum in order to get the height but am concerned about RF or the metal degrading the performance. Can this mast be used?
I neglected to mention in the original post that it is in an inverted V the mast is in the center.
Yes. To use aluminum poles as end supports you should have insulators and sufficient lengths of non-conducting support line between the pipe and the antenna ends to where it won’t be a problem. If you are planning to use a metal mast as a center insulator support, the effect should be minimal on your radiated pattern. Just make sure that even in very windy conditions, there is no way the wire can contact the antenna
As an inverted V I would recommend you work to get the apex angle and lower leg height as close to nominal as possible to give you the best pattern. These online calculators can help find those numbers;
http://www.hamuniverse.com/dipivcal.html
http://www.k7mem.150m.com/Electronic_Notebook/antennas/inverted_vee.html
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