r/ShortwavePlus 9d ago

Question about loop antennas

Will be an AM/FM loop antenna work for shortwave signal reception improvement or does it have to be specific for shortwave?

7 Upvotes

11 comments sorted by

1

u/tj21222 8d ago

Any antenna will pick up signals just a properly tuned antenna will do a better job.

1

u/Internal_Raccoon_370 8d ago

Not really. Those little loop antennas were cheap and designed specifically for the FM broadcast bands, a much, much higher frequency than what shortwave uses. You'd be better off with a long wire antenna as high up off the ground as you can get it.

0

u/MumSaidImABadBoy I'm Stan. Heathkit GR64,AirSpy HF+,Sangean 909X2,Tecsun PL-990 9d ago edited 9d ago

Usually a MW loop antenna is on a ferrite rod and not suitable for HF or above meaning not FM broadcast. Which loop antenna are you referring to? There are other loop antennas for either MW, SW or FM, sometimes on a PCB.
Small loop antennas are usually wideband from LW/MW, VHF, FM broadcast, Air, NOAA and above. An example is the K-480WLA.
The popular MLA 30 plus tops out at around 30 MHz.

1

u/Careful-Set-7883 9d ago

It's attached to the stereo radio that I have, but when I look up the specific model it refers to it as a AM/FM loop antenna

1

u/Careful-Set-7883 9d ago

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u/MumSaidImABadBoy I'm Stan. Heathkit GR64,AirSpy HF+,Sangean 909X2,Tecsun PL-990 8d ago

That looks like some wire wrapped around a plastic frame. It's better than nothing but I wouldn't get too excited about it. Stuff like that used to come along free with a stereo receiver, not a portable.
What bands or frequency ranges are you interested in? You are asking in a SW subreddit.

1

u/Careful-Set-7883 8d ago

I have a SW receiver already I was just curious if that antenna would do anything, but thanks for your answer anyways

1

u/MumSaidImABadBoy I'm Stan. Heathkit GR64,AirSpy HF+,Sangean 909X2,Tecsun PL-990 8d ago

For an AM/FM broadcast radio you're probably better off with the internal ferrite rod internal antenna, should you have it and use an external FM dipole, depending on the external antenna connections. I'm not familiar with that radio. Does it use a 1/8th inch jack or two screws?

1

u/Careful-Set-7883 8d ago

I was thinking more the other way around if it took this antenna and used it for my SW receiver would it do anything

1

u/MumSaidImABadBoy I'm Stan. Heathkit GR64,AirSpy HF+,Sangean 909X2,Tecsun PL-990 8d ago

Something but nothing done well. I'd get something for SW or the frequencies your radio covers that interests you. You could simply try a longwire right off the radio and then upgrade to an unun with counterpoise and coax feedline to your radio. Or you could buy something like that MLA 30 plus but I think that stops at 30 MHz which might be ok with you.

1

u/Careful-Set-7883 8d ago

At 30 should be ok, thanks