- This topic has 7 replies, 4 voices, and was last updated September 27, 2013 at 7:27 pm by Pat McDonald.
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May 18, 2013 at 5:30 pm #1055851
This is how any radio signal can be located with the right antenna and techniques. I used the MF (medium frequency / medium wave) broadcast band and a known big transmitter (a Christian station broadcasting 60 000 W from the Netherlands) and you are supposed to do the check from 3 different points and where the compass bearings intersect is the target location. This technique has been used almost since radio was invented and still works today (mobile phones make use of it to work out which cell tower is best to register with)
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May 18, 2013 at 6:24 pm #1273287I understand that US Strategic command has an alternative approach to finding radio stations.
Bomb them all until the broadcast stops, the last one you bombed was the offending station.
May 18, 2013 at 6:34 pm #1273282@Pat McDonald 546534 wrote:
I understand that US Strategic command has an alternative approach to finding radio stations.
Bomb them all until the broadcast stops, the last one you bombed was the offending station.
I think NATO did that in Serbia, more recently the Taliban have taken to using portable Band II (FM) transmitters on donkey carts, (as well as other groups setting up static community radio stations). I think both of them have better equipment than some of what is in use at ICR! These are far harder to trace to a exact distance without “boots on the ground” (hence why the Dutch get away with so many pirates even in flat open country).
In the 90s I remember listening to some poor bugger reading the news on Radio Kosovo (from what sounded like a metal shed) and could hear shells etc in the distance (whoever was firing upon him missed and he was able to complete his broadcast). Now unless you are out in the sticks HF reception is fucked due to power line ethernet and shitty SMPSU’s radiating crap modulated with 50 Hz even into the VHF band 😥
May 18, 2013 at 6:42 pm #1273288@General Lighting 546538 wrote:
Now unless you are out in the sticks HF reception is fucked due to power line ethernet and shitty SMPSU’s radiating crap modulated with 50 Hz even into the VHF band 😥
It’s true that. Solar flare activity peak this year isn’t helping matters either.
May 18, 2013 at 11:33 pm #1273285This is what they call “triangulating” the signal right?
May 19, 2013 at 12:35 am #1273283@DaftFader 546562 wrote:
This is what they call “triangulating” the signal right?
Yep thats it…. in both the UK and the Netherlands the Communications Ministry and the engineering departments of national broadcasters work together to track pirates by sharing tracking data – its also done as a social activity by radio enthusiasts where it is called a “fox hunt” (though more nature friendly than a real one)
September 27, 2013 at 7:18 pm #1273286So who wants to start a pirate radio station?
The old school way to do it was get an abandoned flat up a high riser, set up the transmitter and antenna there and use an old sky dish with a UHF transmitter and broadcast the signal from another flat across the road. That way the DJ isn’t in the same building as the transmitter. The problem with that was you can easily see the line of sight where the LNB is pointed.
Much easier to do with WiFi now but still need 2 locations and either a proper built Yagi or a Pringles Can:
How To Make A WiFi Antenna Out of A Pringles Can
Still need a nice stereo FM transmitter, preferably one with one RDS to be one of the cool cats.
September 27, 2013 at 7:27 pm #1273284I’ve heard that for a few years now Edinburgh has to pay London for the services of Ofcom, and because of this there are less officers North of Carlisle 😉
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