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LF: Unid carriers around 500kHz

To: <[email protected]>
Subject: LF: Unid carriers around 500kHz
From: "Clemens Paul" <[email protected]>
Date: Sat, 2 Jun 2012 21:11:19 +0200
Cc: <[email protected]>
References: <[email protected]> <005301cd3ff6$7ac46b50$ae01a8c0@youry0mkaz8jaq> <43865E95A7274277B75E2087347886B8@GaryPC> <007b01cd40a0$2a7e07a0$ae01a8c0@youry0mkaz8jaq> <DED3D85AF6F8463EAA25B7EF95AFD05E@JimPC>
Reply-to: [email protected]
Sender: [email protected]
Hi all,

I can hear/see three synchronous carriers,spaced about 7kHz apart
on ca. 493.7, 500.7, 507.7.
Duration about 4 seconds,pause, then repetition and so on. See screenshot.
Anyone any idea?

73
Clemens
DL4RAJ

Attachment: Unid 493.7_500.7_507.7.gif
Description: GIF image

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