Atlantic 2000 QRV 25/11.

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Atlantic 2000 QRV 25/11.

Postby m0lsx » Sat Nov 24, 2012 6:05 pm

Atlantic 2000 have announced that they will be QRV tomorrow (Sunday 25th Nov 2012,) on 9480 kHz from 09:00 to 10:00 UTC (thats the same as GMT.)
http://radioatlantic2000.free.fr/
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Re: Atlantic 2000 QRV 25/11.

Postby SilverShadow » Sat Nov 24, 2012 6:14 pm

Going back to what you said in the other thread about the pirate station I couldnt receive last weekend...

I guess this will be more receivable? Is this in France and what makes it easier to pick up, is it down to the location or more the fact they will be using a better antenna with more power? or maybe a combination of the two?
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Re: Atlantic 2000 QRV 25/11.

Postby m0lsx » Thu Nov 29, 2012 11:24 am

Sorry only just noticed your post.
Atlantic 2000 is a non UK station, so stands more chance of being heard here.
On frequencies such as this there is a dead zone. A zone between the ground wave & where the sky wave reflects back off the F1 layer. In this area nothing is heard.
Back in the late 70's a friend got fed up with the Post Office / DTI, as it then was raiding him for unlicenced broadcasting. To get around this he started broadcasting on 11 MHz. This meant that to catch him they had to DF him from two locations outside of the UK & then send the local man into the groundwave area to DF him there. So simply by changing your broadcast location every time you are on by more than, say about 10 to 15 miles, there is no ground wave. And by changing your location by at least a 45 minute drive & doing no more than one hour of programming, they stand an almost zero chance of catching you.
Using 10 to 15 watts of AM, my friend was heard in Italy, Norway, Sweden, East & West Germany regularly & had reception reports back from much further afield than that..
This problem with these frequencies is one that faces those doing amateur radio foundation course training. The curriculum says that 20 meters should be used for the HF contact. But that means a station needs to be operated for this purpose close to the training location to get more than a 5 & 9 type contact & the contact required by the training IS more than a 5 & 9. So as a trainer that is something else you need to consider, as you should not be using say 40 or 80 meters to get a local station who is going to have the kind of contact required. Yet on 20 the local (groundwave) range is less than half of what you get for the VHF (2 meter) contact.
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