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Message-ID: <3.0.1.16.20010320173630.2b1fcf8e@mail.cc.kuleuven.ac.be>
Date: Tue, 20 Mar 2001 17:36:30
To: rsgb_lf_group@blacksheep.org
From: "Rik Strobbe" <rik.strobbe@fys.kuleuven.ac.be>
Subject: Re: LF: Re: Re: DFCW
In-reply-to: <003501c0b157$80775830$0a00a8c0@ThreeLakes.ca>
References: <3.0.1.16.20010320155747.2b1f164c@mail.cc.kuleuven.ac.be> <3AB7787E.B8F6AD37@usa.net>
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Hi Larry,

That would be good to use 'time synchronized' DFCW (or QRSS) at higher
speeds (well ... 'high' means 3 sec./dot or so). But for 30 sec./dot the
internal PC clock (if set correct) will do the job.

But if there is any interest to use a GPS receiver (or any other timer
source) for synchronisation I am willing to see if I can adapt QRS.

73, Rik ON7YD

At 11:04 20/03/01 -0500, you wrote:
>Greetings All:
>
>> > 3. If Alberto could adapt ARGO and let the 'time markers' also appear on
>> > exact multiples of 30 seconds (or 1 minute etc..) and eventually replace
>> > the 'time ticks' at the bottom by thin vertical lines (over the entire
>> > window) then the RX would also have the required 'time synchronisation'
>:
>> > 'key up' or 'key down' of the TX would be at the same time when a 'time
>> > marker' appears on the ARGO screen.
>
>Well if your going this far why not ad real time as an optional alternative?
>Connect the INVERTED 1 PPS output from a GPS receiver to the RI line in
>RS232 and use the RI interrupt to make the timing coherent to a rather
>excellent and free standard available everywhere on this mudball.
>
>RI (Ring Indicate) is available on dB-25 Pin 22, and DB-9 Pin 9.
>
>Larry
>VA3LK
>
>
>
>
>