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Locked Re: Loop options for HF RX
Personally I wouldn't. If you look at the amplifier input impedance measurements in the files section /g/loopantennas/files/Loop%20Amp%20Tests%20by%20AA7U You will see that the W6LVP
By Martin - Southwest UK · #15827 ·
Locked Re: Best SDR Receivers
Hi Garey, This guy has a lot of good explainer videos on youtube. Here's one about the waterfall display - https://www.youtube.com/watch?v=91XtLZNIyK8 Danny UK.
By Danny G. · #15826 ·
Locked Re: Loop Antenna Prices
This is a common theme in amateur radio circles too, if you have ever been to a hamfest or similar you will often hear "I could make one of those for a fraction of the price". Amateur constructors,
By Martin - Southwest UK · #15825 ·
Locked Re: Loop Antenna Prices
You are still not getting it Dave, despite having business practices explained to you more than once. You have certainly not factored in your own costs in getting educated through to the point where
By Tom Crosbie G6PZZ · #15824 ·
Locked Re: New Chameleon CHA RXL receive loop antenna
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
By Tom - VE3PSZ · #15823 ·
Locked Re: Loop Antenna Prices
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
By Everett N4CY · #15821 ·
Locked Re: New Chameleon CHA RXL receive loop antenna
Well, me too. But my point was that, at least here at my location, the design is working better
By Zulu-Romeo · #15820 ·
Locked Re: Best SDR Receivers
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"
By gareywittich2000 · #15819 ·
Locked Re: Loop options for HF RX
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:
By Andrew Ikin · #15818 ·
Locked Re: Loop options for HF RX
Thanks for the info Andrew. Would 3 miles from a 1500 watt AM broadcast station be too close? Ryan W6ZAR
By Ryan · #15817 ·
Locked Re: Loop Antenna Prices
Dave, How do you test your 50 Buck loop amplifier and what performance parameters does it have? 73 Andrew G8LUG _._,_._,_
By Andrew Ikin · #15816 ·
Locked Re: Loop Antenna Prices
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
By Mark Pettifor · #15815 ·
Locked Re: Best SDR Receivers
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
By Nick Arend <nrarend@...> · #15814 ·
Locked Re: Loop Antenna Prices
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
By Andy - Arlington TX <andy.j1s@...> · #15813 ·
Locked Re: Loop Antenna Prices
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
By W0LEV · #15812 ·
Locked Re: Loop Antenna Prices
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
By Tom - VE3PSZ · #15811 ·
Locked Re: Loop options for HF RX
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
By Andrew Ikin · #15810 ·
Locked Re: New Chameleon CHA RXL receive loop antenna
Hi Zulu-Romeo, I'm glad you find the simple casarain.com loop amp is working well for you. 73, Steve AA7U
By Steve Ratzlaff · #15809 ·
Locked Re: Loop Antenna Prices
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
By Simon · #15808 ·
Locked Re: New Chameleon CHA RXL receive loop antenna
P.S. - Here is the amplifier which I am using: Loop Amplifier on eBay (
By Zulu-Romeo · #15807 ·