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Re: LF: VO1NA OP32

To: <[email protected]>
Subject: Re: LF: VO1NA OP32
From: "Graham" <[email protected]>
Date: Fri, 21 Jun 2013 01:20:55 +0100
Importance: Normal
In-reply-to: <[email protected]>
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Ok Joe ,

If your not in 'rx' mode , you can run at 100% , tx cycle , that's still at 50% duty cycle not many showing on the map at the moment , this time last night , there where 20 !
Ive posted in the Opera and Rsgb Lf groups , in case some one picks up
on it later , your side .

From: <[email protected]>
Sent: Friday, June 21, 2013 1:08 AM
To: <[email protected]>
Subject: Re: LF: VO1NA OP32

Thanks Graham for the info.  The transmission was delayed by
one minute and started at 0000utc.  Tonight's programme:
~36 mins of opera, ~36 mins of silence, ~36 mins of opera,...
until EU dawn or so.

73 Joe VO1NA

On Fri, 21 Jun 2013, Graham wrote:

Thanks Joe,

This is the  pattern  from the  software , should  be the  same !

Symbol time is important , the data clock needs to be as good as possible , by 'good' that is as good as a 'pc' not as in uHz , clock drift and/or pulse width will affect the minimum decode s/n ,
Good luck  73-G..

Symbol times

Opera05: 0.128 s
Opera1:   0.256 s
Opera2:   0.512 s
Opera4:   1.024 s
Opera8:   2.048 s
Opera32: 8.192 s



From: <[email protected]>
Sent: Thursday, June 20, 2013 11:14 PM
To: <[email protected]>
Subject: LF: VO1NA OP32

Dear Group,

With many thanks to the group members for their kind assistance, Markus
and Graham in particular, A satisfactory exciter is presently QRV
and will be returning the OP32 code (that Makus recently sent by email)
on 137.555 kHz starting tonight 20 June at 2359 utc. The back-yard photon
flux will be ~10^30/s.

Good luck to any who will be monitoring and please feel free to let
me know if you receive an indication of the sigs.


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