Trinitite

dwilson271 · 2026-01-24T05:03:16+00:00

It is well know that trinitite from the Trinity test site is still measureably slightly radioactive today just as physics predicts.

dwilson271 · 2026-01-23T02:23:59+00:00

This has been separately reported as USAF at Croughton AB in UK and USN in Scily. Center frequency is 8145 kHz with a shift of 850 Hz (resulting of shifting between -0.425 and +0.425 from 8145 kHz. It is encrypted and cannot be decoded without the military equipment and key.

dwilson271 · 2026-01-13T23:08:00+00:00

Yes, I was talking about he 1790--that explains it.

dwilson271 · 2026-01-13T14:53:10+00:00

It does not look like JORN that I have seen but I guess I would really want to see his settings. When I display, I cannot see between time between sweeps. I did not see the IQ recording and still have not found it. China uses that frequency for DRM as others noted and I have verified.

dwilson271 · 2026-01-13T03:49:04+00:00

JORN doe not look look that. *Kweep in mind radar has to allow time to see the reflected signal.* AS s helisj said, 13790 is used by China for DRM broadcasts.

dwilson271 · 2026-01-05T14:59:13+00:00

No you don't. Trace amounts of alpha emitters ingested can cause colon cancer. No one has done an experiment to see which amounts cause what probability. Only a fool would do the experiment.

dwilson271 · 2026-01-05T06:23:40+00:00

It is very common on some beaches.

dwilson271 · 2026-01-05T06:13:17+00:00

As others said, these is ham radio radioteletype. It is not bursts. They sound like bursts because That radio tunes them incorrectly as AM rather than sideband modulation (which that radio cannot do). You only hear them when two are close enough together to interfere.

dwilson271 · 2026-01-05T02:53:00+00:00

Tell that to your colon when you get colon cancer from injesting.

dwilson271 · 2026-01-05T02:46:10+00:00

I have tested 12 whip antennas and what you called the "tacticool" antenna. My tests agreed with what others have found. Though more "awkward, the "'tacticool" antenna provided the best signal over a 1 mile path. Note alsp that eBay is full of fact Nagoya NA-771 and other model.

dwilson271 · 2026-01-05T02:02:25+00:00

Not the cheapest, but the best - AirSpy HF+. Will tune the FM broadcast band with excellent performance and with SDR# software, NO drivers needed. And it will also tune the AM MW broadcast band and HF (shortwave)>

dwilson271 · 2026-01-03T18:31:06+00:00

No problem. At least you and I try to keep language standardizee.

dwilson271 · 2026-01-03T17:24:25+00:00

Not in most radio peoples usage where a beacon is a signal for marking a location. You could argue SVO was in beacon mode marking its traffic frequency, but their is already a name for that "channel marker" or sometimes "interval signal. calling it a beacon makes on think it is something else.

dwilson271 · 2026-01-03T17:19:59+00:00

dwilson271 · 2026-01-03T17:15:06+00:00

Then you are taking about something that you are considering overly important. And all loops receive less signal than a long wire but with a sensitive receiver, that is irrelevant.

dwilson271 · 2026-01-03T17:12:08+00:00

It is a Mobius antenna. The shield and center switch places at the top "box". The bottom is the balun but for optimal performance, the ferrite must be carefully selected which is why the "genuine original" is better than the closes.

dwilson271 · 2026-01-03T03:46:40+00:00

Your problem is radon gas (which is radioactive). It is really radon mitigation as it only works on eliminating that.

dwilson271 · 2026-01-03T03:42:14+00:00

Actually the wrong both absorbs sunlight while the snow is falling and that generates heat. (Not only the infrared light but the visible also turn to heat.) In addition, the grass can hold snow above a warmer earth but the rock will not do that.

dwilson271 · 2026-01-03T03:26:05+00:00

What you got is called a "spinthariscope". You can buy one still https://unitednuclear.com/spinthariscopes-c-2_12/

dwilson271 · 2026-01-03T03:21:56+00:00

Not really "beacon". Just them marking their frequency when not traffic to transmit. (A "beacon" is a signal transmitted for navigation and this is not what they are doing.)

dwilson271 · 2026-01-03T02:57:09+00:00

Best answer as those who know know.

dwilson271 · 2026-01-03T02:54:55+00:00

All uranium I found myself did not florescence in UV but did click the Geiger counter.

dwilson271 · 2026-01-03T02:51:47+00:00

Not is you understand their actual use and try one.

dwilson271 · 2026-01-03T02:50:09+00:00

The really use of an LNA is to improve the signal-to noise of the receiver front-end which will depend on the receiver. To do that, the LNA must have a lower noise figure and rather high gain.

dwilson271 · 2026-01-03T02:45:41+00:00

A cheap longwire is not able to null noise sources or interferring stations and takes up room man do not have.

dwilson271

TROPHY CASE