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80m Projects - Various Antennas

Click to enlargeActive Ferrite Rod Antenna for HF by OH7SV
The red connector is for an optional external antenna wire and the black connector is for a ground wire. The red is wired to secondary winding and the black is connected to the circuit ground plane.

Click to enlargeActive Ferrite Rod Antenna by OH2NLT
Matti OH7SV did some tests to find out if Active Ferrite Rod antenna can be build for 80 / 40 Meter ham band reception.
I did boxed version of this antenna for practical tests. Antenna construction presented with few pictures.

Click to enlargeFerrite rod RX antenna for 80 meter band by OH7SV
This ferrite rod antenna is a quick and dirty project. Although it looks very attractive it is not very sensitive. I recommend you to add a peamplifier with a gain of e.g. 20 dB, otherwise you can listen only strong stations.

Creation date : 07/03/2019 @ 18:14
Last update : 17/03/2020 @ 21:24
Category : 80m Projects
Page read 8286 times

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