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Re: LF: 27.925 is correct dial

from [Markus Vester] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: 27.925 is correct dial
From: "Markus Vester" <[email protected]>
Date: Sat, 8 Mar 2014 19:09:36 +0100
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An Opera sequence consists of 239 raw bits (actually Manchester code half-symbols). For Op-2H, each bit is 128 * 0.256 seconds long. For some reason, reported timestamps seem to be 3.5 bits after the physical end of the sequence.  
 
73, Markus

 
Sent: Saturday, March 08, 2014 6:15 PM
Subject: Re: LF: 27.925 is correct dial


Could someone clarify for me the times given in the opera
reports, eg

  -44 OPERA 07/03/2014 06:51 WH1XBA W4DEX EM95TG RX Op2H

Is 06:51 the end time of an opera frame, or the start time?

And, is the frame exactly 2 hours long?

--
Paul Nicholson
--

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