Antenna - The never ending story
#1
We don't need big antennas for the range 30-300km

I have made lots of antennas and they all work well.
Important - Self-resonance must be high.

First I made a "reference antenna" 160mm Ø, 1mm, 14turn

Then one for a 75mm standard plastic tube
A piece of brake pipe and a 48-turn transformer on a toroid

The top antenna is isolated from toroid and is also used as an E-Field antenna - Perhaps the third channel in the H-Field antenna could be for E-Field  Idea Wink Rolleyes 

/Richo


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Stations: 584, 585, 2017
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Antenna - The never ending story - by RichoAnd - 2017-08-25, 09:08



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