Date: Sat, 1 Jul 2017 19:54:17 -0230 (NDT)
From: jcraig@mun.ca
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: 20 Years of QRSS
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Good idea!  I will keep 137777 warm on this side of the pond and
watch on 136172.  It has been a long time since the last 2XTA on LF.

73's
Joe VO1NA

On Sat, 1 Jul 2017, Markus Vester wrote:

>> Perhaps we should have a QRSS weekend on Fri/Sat/Sun 14/15/16 July?
>> Any takers?
>
> Sounds good, Mike!
>
> Best 73,
> Markus (DF6NM)
>
>
>
> -----Urspr=C3=BCngliche Mitteilung-----
> Von: Mike Dennison <mike.dennison@ntlworld.com>
> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>; rsgb_lf_group <rsgb_lf_=
group@yahoogroups.co.uk>
> Verschickt: Sa, 1. Jul 2017 23:11
> Betreff: Re: LF: 20 Years of QRSS
>
>
> I was involved in the naming of "QRSS". It is simply QRS (slow CW)
> but the extra 'S' indicates "very", using the same syntax as "QRPP"
> meaning "very QRP".
>
> It is hard to imagine now what a breakthrough Andy and Peter's
> experiments were, communicating over what were unheard of distances
> in those days.
>
> My first received QRSS involved a rather fast spectrogram (waterfall)
> and a stopwatch as it scrolled off the screen.
>
> I believe Andy and I had the first two-way QRSS QSO, and I certainly
> had the first international QRSS contact, with ON7YD - also a
> UK-Belgium first.
>
> Perhaps we should have a QRSS weekend on Fri/Sat/Sun 14/15/16 July?
> Any takers?
>
> Mike, G3XDV
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
>
>> Looking back in my logbook I see on the 12 July 1997 that I made a
>> transmission on 73kHz that was received by G3PLX 393km away in a
>> bandwidth of a few tens of milli-Hz. Peter was using the new fangled
>> DSP stuff in a Motorola DSP card, to display the narrowband filtered
>> signal on a waterfall display.
>>
>> I was radiating perhaps 5 - 10 milliwatts ERP (from a 200W
>> transmitter)
>>
>> No information was exchanged that day, just confirmation of the
>> carrier being switched on or off using the telephone as a back link.
>> Peter suggested I write some software to generate very slow CW to key
>> the transmitter and send it to him.
>>
>> On 27 July He received the first SLOWCW signal from me with positive
>> ID of the callsign, sent according to my logbook notes with 100s dots
>> between 0400 to 0718 UTC. We then did the same again for several
>> nights running, varying the dot speed . This completely smashed the
>> one-way distance record for the 73kHz band. There were several at
>> the time who said "its not real amateur radio, it's computers talking"
>> but those voices were soon silenced.
>>
>> Others wrote software to generate the keying and suddenly everyone
>> started using SLOWCW which for some unfathomable reason started to be
>> called QRSS (why ?)
>>
>> Now 20 years later, it still seems to be widely used, albeit with a
>> few variations like DFCW to speed up exchanges.
>>
>> Andy G4JNT
>>
>>
>> ---
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