GLP When The Grid Goes Down - HELLSCHREIBER

my bad..you mean a wild west glp...whats our password??

I come from royal signals back ground and 15 years ago the very second you transmitted the Russians would of DF'ed you 3 million times regardless of HF or VHF. The way you survive on the battlefield was using EW tactics by setting up a wall of radio signals which effectively covered your transmission. This is where you'd the "shoot and scoot" tactics which is very dangerous job as it's front line and if you get delayed you're dead.

An EW bro from across the pond.

In this scenario, one could expect there would be few DF teams working, if at all, for quite some time.

Even then, they would prioritize what signals to radiolocate, and these neo-GLP transmissions would be low on their list.

An EW bro from across the pond.

In this scenario, one could expect there would be few DF teams working, if at all, for quite some time.

Even then, they would prioritize what signals to radiolocate, and these neo-GLP transmissions would be low on their list.

I read a story about how MOD detected Soviet agents in the UK by broadcasting from an aircraft the frequency the spies used. They then homed in on the IF the spies radio produced.

Would work for short distances, like if you already suspected the spy next door. For longer distances you'd need an RF quiet environment...which may or may not exist after SHTF. All radios and electronics put out weak signals like the above.

I certainly wouldnt want to be the one transmitting any signal. if the Russians moved in with troops the moment you transmitted anything you'd be located in millisecond and they would take out the 1 kilometer grid reference you were in within afew minutes.

WOW, you've certainly chugged down the Kool-aid.

The question that has been kicked around on various threads is what if the GLP effect fails? How do we get the juicy info if it all goes sideways?

One way to do this is with HF radio on the 20 meter band using 50 watts, using a text mode called Hellschreiber - also called Feld-Hell.

Here's an introduction to this mode:

[link to www.nonstopsystems.com (secure)]

The idea would be to have a master station receiving at 20 meters throughout the day. 8 am CST to 7 pm seems to be the best for radio propagation at this frequency.

PRIMARY: 14.064 Mhz

SECONDARY: 14.075 Mhz

TERTIARY: 14.077 Mhz

[link to www.voacap.com]

Every day, say at 5 pm CST, a digest of all the field reports received with Feld-Hell would be retransmitted several times via CW. Then the master station goes into receive mode.

You wouldn't need a transmitter to get these reports. A HF receiver like a Grundig could receive the transmission, and a laptop with free Hellscheiber decoding software would display the daily digest.

You can download the software here:

[link to www.qsl.net]

And radio-computer hookup information is here:

[link to www.qsl.net]

Alternatively, a computer with an external microphone could conceivably receive the transmission by simply putting the microphone near the radio's speaker - no splicing wires would be needed.

Your thoughts?

I would learn how to use it, and then set up the following:

A galvanized garbage can to store it in. Galvanized lid, too.

A cheap used laptop ($100) with MuliPSK or Hellschreiber software

A 150 watt inverter and computer / radio power supplies

A 10 watt solar panel with charge controller

A 12 vdc deep cycle battery (doesn't need to be in the can)

An antenna for the radio.

Once you have all this together and prove it works with Hellschreiber, put everything minus the battery in the can. Seal the can with aluminum tape. Keep the battery on a trickle charger.

The 10 watt solar panel should give you four hours of daily operation. A 60 - 80 watt panel should give you 24 hours a day use reliably. Don't know if a panel that large can be put in the can, which it needs to be for EMP.

Would a USB SDR and a Linux Laptop be able to do this using something like this?

[link to www.amazon.com (secure)]

I would learn how to use it, and then set up the following:

A galvanized garbage can to store it in. Galvanized lid, too.

A cheap used laptop ($100) with MuliPSK or Hellschreiber software

A 150 watt inverter and computer / radio power supplies

A 10 watt solar panel with charge controller

A 12 vdc deep cycle battery (doesn't need to be in the can)

An antenna for the radio.

Once you have all this together and prove it works with Hellschreiber, put everything minus the battery in the can. Seal the can with aluminum tape. Keep the battery on a trickle charger.

The 10 watt solar panel should give you four hours of daily operation. A 60 - 80 watt panel should give you 24 hours a day use reliably. Don't know if a panel that large can be put in the can, which it needs to be for EMP.

I am now able to listen in on hf with a 20 meter in my basement with plans to move it into the attic. I can hear bands in the 13Mhz, 15Mhz and even short wave in the 18Mhz but not much in 14Mhz other then CW and some digital.

I am listening with an rtl-sdr and gqrx (gnu radio).

Thanks for showing the way to an inexpensive HF radio.

I'm thinking now that perhaps Olivia might be a better option than Hell. Download the latest Multipsk and Fldigi while you can.

Those of you with transceivers will need an interface, like a RigBlaster, to connect your computer to your radio.

I just bought an octopus antenna so that I can receive more bands efficiently with hamsticks at different antenna lengths in a nice neat package. My initial plan is to put my current dipole in the attic with a raspberry pi 4 and then use ethternet to control it using gnu radio from my PC. Later on once I have my general license I plan on working with the octopus antennas in the attic with a coax to the basement and a hack rf one.

I was always interested in amateur radio but now is a good time to bite the bullet and get my license. I did take classes 30 years ago but stopped studying when I needed to learn all the CW. Now that it is not required I can pick up CW in my time and not the time of the license requirements.

I am more interested in CW, RTTY, packet and digital types of modulation then voice. I already do a lot with linux, wifi(openwrt), internet, etc.

I would learn how to use it, and then set up the following:

A galvanized garbage can to store it in. Galvanized lid, too.

A cheap used laptop ($100) with MuliPSK or Hellschreiber software

A 150 watt inverter and computer / radio power supplies

A 10 watt solar panel with charge controller

A 12 vdc deep cycle battery (doesn't need to be in the can)

An antenna for the radio.

Once you have all this together and prove it works with Hellschreiber, put everything minus the battery in the can. Seal the can with aluminum tape. Keep the battery on a trickle charger.

The 10 watt solar panel should give you four hours of daily operation. A 60 - 80 watt panel should give you 24 hours a day use reliably. Don't know if a panel that large can be put in the can, which it needs to be for EMP.

When the grid goes down typing on a forum will be the least of my worries!

There's some people who thing Big Brother is all knowing, all powerful, always present.

People like that usually worship government and likely are taking a government monthly check.

All militaries monitor transmissions, that is just one of the things they do. To think you can transmit an uncoded message and they won't get it is. Naïve.

PS they are also really good at cracking coded messages as well.