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LF: Re: Strange signal

To: <[email protected]>
Subject: LF: Re: Strange signal
From: "Marco Cadeddu" <[email protected]>
Date: Tue, 8 Jan 2013 19:47:54 -0000
References: <428AD1894D5E4BA78368C439F5CB7A12@GaryAsus>
Reply-to: [email protected]
Sender: [email protected]
Gary...
you need to improve relationships with your neigborough! ;-) hihi
 
73, Marco IK1HSS
----- Original Message -----
Sent: Tuesday, January 08, 2013 7:26 PM
Subject: LF: Strange signal

Hi All,
 
I am seeing a strange signal centered on 474.750 kHz. It is periodically visible & audible on my grabber system & my JRC NRD-345. there appears to be no data, just continuous tones. Both systems using separate antennas.
 
I have placed a capture on Dropbox of the grabber image & you can see the end of a previous period & the start of a new one. The signal pattern starts with a bulge at the beginning but just shuts off at the end.
 
 
I have also placed a capture from the JRC Rx with SpecLab running at QRS01.
 
 
Any ideas or knowledge of this signal ?
 
73,
 
Gary - G4WGT.
 
 
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