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Hi Zulu-Romeo. I wonder if you have compared the eBay loop amplifier (M0AYF circuit) to any other loop amplifiers in an A/B test? I have, and found it to compare quite well above 2MHz. But on LF and

Dave, Maybe you would like to share the schematic for your $20 loop amp with the group, so those that are builders can build one for their use. Everett N4CY Sent from the all new AOL app for iOS

Well, me too. But my point was that, at least here at my location, the design is working better

Never used a SDR -? just learning about them, as I watch these discussions.? I understand seeing signals across a freq range all at one time ( spectrum of frequencies ), but what does a "water fall"

The ALA1530LN should cope, but you may need some Rx attenuation or drop the AM station into the loops null. 73 Andrew Sent: Monday, January 10, 2022 12:17 AM To: [email protected] Subject: Re:

Thanks for the info Andrew. Would 3 miles from a 1500 watt AM broadcast station be too close? Ryan W6ZAR

Dave, How do you test your 50 Buck loop amplifier and what performance parameters does it have? 73 Andrew G8LUG _._,_._,_

I've been fortunate to be able to have the means to support others in the hobby when they build stuff to try and supplement their income. For one, I'm single. :^) I recently bought the new version of

I think those comments were generalized from the earlier models of SDRPlay products which did have such problems. The company made improvements for the RSPdx. I own one and have used it for several

Not to mention, production volume just isn't there to use all the mass-production techniques and equipment that keep other types of similarly complex products inexpensive. Lower production volume also

OK. I get it. But even if I include (my) labor at, say, $50/hour, add another $150. When we can buy highly capable vector network analyzers (NANOVNAs) and spectrum analyzers (TinySA) from China for

You forgot to factor in the cost of labor to design the loop circuit, the PCB and the mechanical items. Then there is the labor cost to procure the parts. And finally the cost to build and test each

Hello Ryan, The answer is that the LNP offers higher gain which maybe important to increase the System s/n below 500kHz. Also some users prefer a higher gain antenna. One possible disadvantage is the

Hi Zulu-Romeo, I'm glad you find the simple casarain.com loop amp is working well for you. 73, Steve AA7U

Dave.. not meaning to be rude.. Its silly obvious really..companies need to make a profit, design costs, pay wages. Pay rent, bills, pay mortgage on their house etc.. Thats why amateur radio is called

P.S. - Here is the amplifier which I am using: Loop Amplifier on eBay (

Why are loop antennas so expensive (over priced)? I truly don't get it. My DITY 1-meter diameter loop with preamp (parts came from my stash) cost me less than $20 to build. The small 0.5-meter loop

Hi Steve, My experiences with the M0AYF amplifier design do not seem to agree with yours. I have a homebrew 3 ft. diameter coaxial cable loop which is connected to this amplifier and I find it to be

I have (2) SDRPlay RSPdx units here, both in use on different bands. I can't find much to fault about them. I'm not experiencing any of the mentioned front end overloading, but I do carefully control

I would go either DIY or if you do buy, go with the W6LVP. For my own use, I built a nearly exact copy of the W6LVP and it works very, very well. Sits on a mast 6ft. high in my back yard with a small