A more sensitive RF diode?

[Gerhard Hoffmann]

Am 30.09.19 um 11:21 schrieb Jan Panteltje:

I had a LED connected to my 27 MHz GPA antenna,
it came on when my across the street neighbor turned on his transmitter.
I called him via radio and asked how much power he was running
4W was the maximum allowed at that time here, eeeehh.

I tested my 250 W shortwave linear antenna walking in the garden with a neon bulb.

A friend of mine could toggle the street lights in the Schlangenbader
Tunnel in Berlin. 1 KW from 4*12V batteries on 144 MHz.
That was from an old BMW 730 Diesel without any electronics.
A modern car would not survive that.

Another one, from Luxemburg, had a Drake L4B in his car, with a
generator in the trunk. And the L4B was open, so he could easier
get a high impedance source for the somewhat short antenna on 80m.

We could play Star Wars with fluorescent tubes on the parking lot.

Gerhard

 

[Piglet]

On 30/09/2019 00:58, Bill Sloman wrote:

On Monday, September 30, 2019 at 8:45:47 AM UTC+10, Cursitor Doom wrote:
On Sun, 29 Sep 2019 20:24:51 +0100, brian wrote:

I can light an LED from a Longwave Transmitter located 20 miles away.
It puts out 50kW. I dare say I could get it to run a small transistor
amplifier.

Go for it. Channel Tesla. ;-)

It really is illegal. Closer to long wave transmitters, you are supposed to have to wrap your fluorescent tubes in a chicken wire Faraday cage to avoid getting illegal free lighting.

Yep, people with solar powered calculators and PV roofs should be held
more responsible for running down the sun.

piglet

 

On Mon, 30 Sep 2019 13:14:29 +0200, Gerhard Hoffmann <dk4xp@arcor.de>
wrote:

Am 30.09.19 um 07:44 schrieb upsidedown@downunder.com:
On Mon, 30 Sep 2019 02:34:39 +0200, Gerhard Hoffmann <dk4xp@arcor.de


Less than 20 miles from here there was Europawelle Saar,
1.6 MegaW on 1422 KHz. They had an antenna with a reflector tower
to notch out the radiation towards Russia, where there was a
station on the same frequency.

Better known as Radio Luxembourg.

No, Luxemburg was 9 KHz higher and 30 Km farther away.

Actually "Radio 208" is 1440 kHz, so the difference was 18 kHz.

They built a large public swimming pool in the next village
because they had the hot water from cooling the plates for free.
A construction worker died when he touched the steel cable
hanging from a crane.


When electronic ignition became normal, they had to shield a
nearby Autobahn, or the cars would simply stop.

That high power caused intermodulation in the ionosphere, known as
Luxemburg effect
https://en.wikipedia.org/wiki/Luxemburg%E2%80%93Gorky_effect

Yes. And it was unfortunate that the 2 strongest MW stations in Europe
were only 9 KHz apart. When you traveled to the Mediterranian sea,
they were the only German language stations you could reliably hear.

Europawelle Saar was the natural station for my first detector receiver
I built as a kid.

Nobody listens here to AM any more.

/gerhard

 

[Bill Sloman]

On Monday, September 30, 2019 at 3:50:42 PM UTC+10, upsid...@downunder.com wrote:

On Sun, 29 Sep 2019 16:58:23 -0700 (PDT), Bill Sloman
bill.sloman@ieee.org> wrote:

On Monday, September 30, 2019 at 8:45:47 AM UTC+10, Cursitor Doom wrote:
On Sun, 29 Sep 2019 20:24:51 +0100, brian wrote:

I can light an LED from a Longwave Transmitter located 20 miles away.
It puts out 50kW. I dare say I could get it to run a small transistor
amplifier.

Go for it. Channel Tesla. ;-)

It really is illegal. Closer to long wave transmitters, you are supposed to have to wrap your fluorescent tubes in a chicken wire Faraday cage to avoid getting illegal free lighting.

In which countries does such laws exist ?. I could understand if
tapping electric or magnetic field from mains wires could be labelled
as electric stealing. However, claiming tapping of electromagnetic
fields would be illegal, is simply ridiculous.

I didn't have to do it when I lived in the UK, but the people who had had to do it seemed to have been convinced that somebody would have gone after them if they hadn't.

Ridicule works if you know what you are talking about. You don't seem to.

--
bill Sloman, Sydney

 

[Bill Sloman]

On Monday, September 30, 2019 at 8:31:14 PM UTC+10, tabb...@gmail.com wrote:

On Monday, 30 September 2019 06:50:42 UTC+1, upsid...@downunder.com wrote:
On Sun, 29 Sep 2019 16:58:23 -0700 (PDT), Bill Sloman
bill.sloman@ieee.org> wrote:
On Monday, September 30, 2019 at 8:45:47 AM UTC+10, Cursitor Doom wrote:
On Sun, 29 Sep 2019 20:24:51 +0100, brian wrote:

I can light an LED from a Longwave Transmitter located 20 miles away.
It puts out 50kW. I dare say I could get it to run a small transistor
amplifier.

Go for it. Channel Tesla. ;-)

It really is illegal. Closer to long wave transmitters, you are supposed to have to wrap your fluorescent tubes in a chicken wire Faraday cage to avoid getting illegal free lighting.

In which countries does such laws exist ?. I could understand if
tapping electric or magnetic field from mains wires could be lapelled
as electric stealing. However, claiming tapping of electromagnetic
fields would be illegal, is simply ridiculous
.

stating the law's position is not ridiculous afaik. His faraday cage comment is though.

NT doesn't seem to know what he is talking about either - he frequently doesn't.

--
Bill Sloman, Sydney