20 M mag loop advice

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Wo0R
Posts: 1
Joined: Mon Jul 14, 2025 11:07 am

20 M mag loop advice

Post by Wo0R »

Hi, I have a noob question about mag loop antennas.
I inherited a coil of 3/8-inch OD copper tubing.
I would like to build a 20 M magnetic loop antenna for portable operation.

Question - If I'm happy with a narrow band of frequencies (e.g. FT8), can I build one without a tuning capacitor?

Follow up question - How sensitive is the loop to the surroundings. I'm in North Dakota, so I envision putting a tripod with loop a reasonable distance from my car and it will almost always be flat without trees.

Thanks,
Ted, Wo0R
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