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LF: Re: Re: 136kHz and Rugby Loran

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Subject: LF: Re: Re: 136kHz and Rugby Loran
From: "James Moritz" <[email protected]>
Date: Mon, 4 Jul 2005 22:54:55 +0100
Delivery-date: Mon, 04 Jul 2005 22:58:30 +0100
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Dear David, LF Group,
Please feel free to use the "published" info. So far, the only day I captured the exact times of operation was 30th June, when Rugby started at 0650 utc and shut down at 1526 utc, if the clock in my computer is to be believed. At the moment, Rugby still seems to be operating the Loran TX "office hours only" - it usually seems to come on about 8am BST, give or take 20 mins or so - perhaps it would be a good idea  to make some audio recordings as .wav files or similar of the actual start-up. I guess this would be pretty convincing, especially if G3YXM can make a recording! There was so much QRN during the afternoons in the last couple of weeks it was hard to see on my spectrograms where the transmissions actually shut down, but that may have improved this week. But since the natural band noise is quite low in these summer mornings, the effect of the Loran noise is more impressive then. I will set my alarm clock for tomorrow morning...
Cheers, Jim Moritz
73 de M0BMU
----- Original Message -----
Sent: Monday, July 04, 2005 8:15 PM
Subject: LF: Re: 136kHz and Rugby Loran

Hello Chaps.
Well, I think we have an opportunity to influence the future of the Loran project at Rugby.
I made a complaint about the interference to the Loarn organisation and they have put the Trinity House project manager in touch with me.  Typically for an interference complaint, they need times dates and description of the sound. 
Sounds I can do, but can someone forward some real dates and times as I haven't noted the previous transmissions to a sufficient accuracy.
I suspect we won't be able to stop this, but we may well get them to install a large notch filter for 136k.
Jim / Dave.  May I use some of your previously 'published' info?
David   G0MRF
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