Do It Yourself

Antenna

HF Long Wire Antenna

            Because of the value of Morse Code communications in the Amateur Service is primarily recreational in nature and manual telegraphy proficiency should no longer be a compulsory licensing requirement for any class of Amateur Radio license. So, our license will be open for work at HF band later I think. It is the time we prepare a good HF antenna in our station. This is a HF antenna and have a 7 meters long wire as a radiator which is wrap on a 5 meters fishing rod. 2 wires with 3 meters and 7 meters long forms a grounding. I also connect the antenna ground to the window frame and air conditioner case to increase the possible area of the grounding. It will use together with the antenna tuner for operation on each HF bands from 1.8MHz to 29MHz. So the better earth can help for effective matching. A common mode choke is also be used and series at the coaxial cable for prevent the in-phase noise and produce a good weak signal reception.

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Mount	Common Mode Choke

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