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Either or both ways. Grady

Yes, I do get it. But the DIY option is always less expensive. I am fortunate in that I've been home brewing since my early SWL days at age 8 and upward. All my test equipment is HP or Agilent. I have

I can not look at the link. My PC cautions of a possible security risk. Dave - W?LEV

[email protected]> wrote: Power supplies stop abruptly when the power is switched off. This thing clearly has a spin-up and spin-down phase, both 3-4 seconds long. It might be a large variable-speed

On Mon, Jan 10, 2022 at 11:20 AM, Zulu-Romeo wrote: > > On Sun, Jan 9, 2022 at 08:06 PM, Tom Seeger wrote: > >> Hi Zulu-Romeo. I wonder if you have compared the eBay loop amplifier >> (M0AYF circuit)

Hi Tom, I have not compared as I have no other loop amplifiers here besides the M0AYF. But from South-Central Oregon, I consistently receive VLF signals from WWVB, the Jim Creek WA naval station, and

Hi Grady No..apart from the Italian silly expensive ones, but even they are limited..ie no 160m You want a good one?? Then build one.. Simon g0zen

THANK you Martin and Danny G for your great suggestions about SDR ANYBODY in this Group living near Santa Monica, Calif ??? Garey Wittich?? Santa Monica, Calif.

Yeh, Simon is one of those guy's :-) https://www.qrz.com/db/G0ZEN/ https://sites.google.com/site/magneticloopantenna40to160m/

Hello Grady, Monday, January 10, 2022 I have received some really strong signals on 160 meters from people using a small transmitting loop. I would imagine they are tuning with a BIG vacuum capacitor

And what frequencies and power rating ?

To purchase or to make? Mr Ed wrote:

Dave, I am 79 and my wife is 77 and we are both Amateur Radio Operators and enjoy building antennas more than we do talking on HF. I have been building antennas since I was 14 and will never get over

Are there any transmit rated loops out there that are worth their salt? Thanks Grady

I'm reminded of when a friend and I were watching Norm Abrams build something absolutely beautiful like a trestle table with free lumber scavenged from a barn being torn down. She turned to me and

* Very similar to an issue I have here, does it sound like a whirring noise if you listen to it? Mine runs for perhaps 20 minutes then 'has a rest' and may restart after 10 minutes or often longer. *

Ah just saw that part. Is it on / off at the same time every day (on a time switch), or does it vary with the weather (Solar PV,? street lamps, heating system) ?

Hi Chris, It's typical of a switched mode power supply, which looks to have an approximate 9KHz component. Maybe a car or mobility scooter charger or Solar PV invertor (if it doesn't go off at night

10 January 2022 Only daylight hours, AFAIK, and MUCH louder on a big (about 380 feet in circumference) horizontal quad wire loop that along one leg runs parallel to overhead phone and mains LV power

Hi Gary, If you want to try for yourself take a look at the many KiWi web sdr's that are available free on-line. http://rx.linkfanel.net/ Software such as SDR Sharp does give an indication of received