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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

The following photos have been uploaded to the Capacitance meter 555 timer 0.1pF resolution ( /g/loopantennas/album?id=271519 ) album of the [email protected] group. * 2021-04-29

The following photos have been uploaded to the Capacitance meter 555 timer 0.1pF resolution ( /g/loopantennas/album?id=271519 ) album of the [email protected] group. * 2022-01-03

Steven Greenfield AE7HD <alienrelics@...> added the album Capacitance meter 555 timer 0.1pF resolution: Originally, I used a 50uA panel meter from Radio Shack for the display. Later, when DMMs

Clearer schematic: https://hackaday.io/project/183405/gallery#dcf3ea57d1631f816e4e82f57189dc85 Block diagram with explanation:

Hi Andy I have both and am still on the fence. I am completely a-technical but get excellent results fro both - as far as I'm concerned it's a toss-up. Actually, I prefer to use the RSPdx and SDRuno

I am also looking to buy a loop for the exact same reasons as the original poster. Why would someone pick the Wellbrook LN over LNP models? What are the advantages / disadvantages of both?

Hi Andy, If you simply wish to 'dip your toe into the water' of SDR's then the RTL-SDR.com V3 is a very good low cost introduction, especially if you want to have VHF & UHF coverage too. If you wish