The official reason is protection of the maritime mobile and aeronautical
radionavigation services.
In the past 5 years I have monitored the 450-525kHz range and apart from NAVTEX
on 518 and 490kHz I haven't heard any maritime mobile signals. There are a lot
of NDB's (non directional beacon) that are part of the aeronautical
radionavigation service, but their number is declining.
Recently I have talked to a older pilot and he confirmed that these days NDB's
are seldom used for navigation but that a lot of airports keep them working for
safety reasons.
73, Rik ON7YD - OR7T
________________________________________
Van: [email protected] [[email protected]]
namens Ken [[email protected]]
Verzonden: woensdag 15 februari 2012 10:47
Aan: [email protected]
Onderwerp: RE: LF: Re: WRC-12 Approves the New 472-479 kHz Amateur Radio
Allocation
Hi Gary, Roger & RiK etc.
Thank you for your info on NOV renewal and protection zones, I appear to be
falling behind on the politics of LF, why all of these protection zones in
Europe and North Africa, is it because of the beacons?
73
Ken M0KHW
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Rik Strobbe
Sent: 15 February 2012 09:11
To: [email protected]
Subject: RE: LF: Re: WRC-12 Approves the New 472-479 kHz Amateur Radio
Allocation
All,
the 800km protection zone (= 1W EIRP limit) will affect a large part of
Europe.
Keep in mind that the protection zone is not only to the east but also to
the south (all northern Africa countries requested protection).
Attached a small map that shows the situation.
73, Rik ON7YD - OR7T
________________________________________
Van: [email protected] [[email protected]]
namens James Moritz [[email protected]]
Verzonden: dinsdag 14 februari 2012 23:05
Aan: [email protected]
Onderwerp: Re: LF: Re: WRC-12 Approves the New 472-479 kHz Amateur Radio
Allocation
Dear Pete, LF Group,
>"Power will be limited to 1W EIRP, but allowing 5W EIRP for (parts of)
>countries that are at least 800km (should read >LIGHT YEARS Which most
>western countries are) from the border from a list of about 30 countries."
Perhaps not as far as we would like - for example, is Kaliningrad still part
of the Russian Federation ?
Cheers, Jim Moritz
73 de M0BMU
|
