Re: Why not a resonant loop?
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This subject was extensively covered and commented on a few months ago.? I'd suggest you check the archives.
Personally, I don't want to tune the loop every time I chase something else.? They are extremely high-Q and tuning is required at BCB and HF frequencies for even a couple of 10 kHz.? No thanks.? My untuned loops work just fine!? I do have a single tuned 1-meter diameter loop I occasionally use for RCV and XMT on 40 and 20-meters during lightning season.? But on 40 the 2 : 1 bandwidth is roughly 6 kHz.? I don't use it too often.
Dave - W?LEV
On Sat, Mar 8, 2025 at 7:48?PM VLF Dilletante via <brownpiggin= [email protected]> wrote: I like tuned loop antennas for AM BCB as well as for NDB chasing. I have a 45 inch on a side box 8 turn loop wound with
#12 magnet wire and also use it as a crystal radio set. A good tuning capacitor is essential. I recently was given a Comet vacuum variable
8 to 1000pf capacitor and it is great for tuning the loop. Very sharp tuning and no need for a vernier. Better Q than my air variables for the BCB band as the tuning peak is sharper and the signal is stronger.
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?I am glad it was free. They are expensive capacitors!
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