Loops Very possibly a Chinese ripoff

vagrant

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I am curious about the specs of that amplifier. That bit of wire is also interesting, but one could always replace it with about 10' of 1/2" copper pipe and some taps on each end. It would also be easy to slip in an RTL-SDR MW filter inline as needed on the coaxial cable.
 

prcguy

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A receive loop of this type is between about 150 to 200 ohms across a very wide frequency range, so there is no need for a fat conductor. Some types of transmitting loops need to reduce every fraction of an ohm for best efficiency, but those are a different design.


I am curious about the specs of that amplifier. That bit of wire is also interesting, but one could always replace it with about 10' of 1/2" copper pipe and some taps on each end. It would also be easy to slip in an RTL-SDR MW filter inline as needed on the coaxial cable.
 

ka3jjz

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You may have heard about this antenna on eBay - these aren't exactly ringing endorsements. Personally I'd stick with the tried and true. More expensive, yes, but far and away better performers than this...



Mike
 

ka3jjz

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Here are a few more links on this antenna - it seems to be attracting some attention, even tho it's cheap and comes from China...




Mike
 

ka3jjz

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Martin on the loopantennas mailing list on groups.io has done some fairly extensive evaluations on the MLA30's amp, and it isn't good news. It's too long and involved to get into the specifics here, but if you are interested in this antenna, be sure to join that group (it's free), as well as getting the reviews from our Loops wiki...Mike
 

nmelfi

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Well I must say I am pretty impressed. Got it Friday, but had a house full of company until today. I cobbled it together with my own homade 5 foot loop and just hung it under the porch. House is blocking a bunch, but already much better results than my longwire.. AM broadcast waterfall is solid spikes, 1.906, LSB listening to hams. Shortwave broadcasting from 5 to 11 megs is stronger, above that is a little week. But is is dark time here now. Overall, pretty impressed for the small investment. Can't wait to move it from under the porch and give it some room to show off.
 
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