[Elecraft] Magnetic Loop Antenna Question

Ignacy no9e at arrl.net
Sun Nov 13 18:30:29 EST 2016


Magnetic loop is interesting when running 100W without a tuner. I had lots of
interesting contacts on 20-10 with the loop 8 ft up and an air split-stator
capacitor.  Altogether the loop weighted some 2 kg and was pretty large.
Such a loop for 40m would be inefficient. 

When your KX3 weighs < 1 kg and has ATU, end fed is likely to be as
efficient and much lighter. Also it can cover many bands without extra
tuning. 

I made my mag loop over 20 years ago and made many contacts. Since I bought
ATU, the loop was not in use. I tried to compare it to  along wire, and the
wire was stronger and lighter. The loop may have a purpose in
quasi-stationary situation especially if there is RFI since the loop can be
rotated to minimize RFI. 

Ignacy, NO9E 



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