To: | [email protected] |
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Subject: | Re: LF: RE: NAVTEX interference |
From: | "John RABSON" <[email protected]> |
Date: | Tue, 19 Aug 2008 14:12:48 +0200 |
In-reply-to: | <004e01c901f2$34404370$6401a8c0@asus> |
References: | <[email protected]> <001301c901e6$917c2d30$2201a8c0@PC2> <[email protected]> <004e01c901f2$34404370$6401a8c0@asus> |
Reply-to: | [email protected] |
Sender: | [email protected] |
I wonder if something _has_ gone wrong with the transmitter. One afternoon many years ago, in Colchester, I was listening to the Third Programme on 647kHz when suddenly a peculiar signal appeared on top of it. This signal sounded like slow morse but was unreadable. I jotted down the marks and spaces and realised it was 'CLN' with inverted keying CLN was an MF aircraft beacon in Clacton on about 650kHz. It seems that the master oscillator had developed a fault and the PA started acting as a power oscillator with a not very well determined frequency. As it was interfering with the Third Programme it was fixed fairly quickly. John F5VLF |
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