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Re: LF: Keyboard Modes for 600 Meters

To: <[email protected]>
Subject: Re: LF: Keyboard Modes for 600 Meters
From: "Graham" <[email protected]>
Date: Thu, 21 Aug 2008 21:21:14 +0100
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Ok John,

I spent a while last year looking for modes that would go through these 'Meat grinder' transmission systems , only found , RTTY , Amtor arq/fec, Pactor arq/fec and Hf Packet , 'hell' of course , but thats in a gray zone .... I think the original Jason system will but with the advent of 'Bill's joined up writing, windows 'xp' it looks to of fallen over ..My version crashes on rx/tx change over . I think it made sequential frequency change steps, which where measured by rx software and thus determined the character .... which on 500 would be a good system, with no lock up time and presumably would print correctly to the point of loosing the last set of tones ?...
Graham ..

Ps  (Alberto, any chance of a recompiled 'xp' version ? )

From: "John Andrews" <[email protected]>
Sent: Thursday, August 21, 2008 12:54 PM
To: <[email protected]>
Subject: Re: LF: Keyboard Modes for 600 Meters


I think you will find , olivia runs more than one tone at any one time and produces a 'two tone test' envelope , simple check, view the sound card o/p on a scope ?
(Belated reply...) Yes, you are correct about Olivia -- easily confirmed
with a scope in a short on-air test. This once again teaches me not to
make quick observations while at work!
John W1TAG

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