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From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <4EA5AAF4.1010306@iup.uni-heidelberg.de>
Date: Mon, 24 Oct 2011 20:08:54 +0100
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Subject: LF: Re: Full ID or just a suffix?
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Hi Stefan just work out how long it takes to send something like YO0QJY at
QRSS-60 and in general you dont get all the call anyway at distance due to
the fading. You usually get the prefix everytime and the suffix is in the
fade, which is not a lot of good at confirming the ID of a weak signal. :-))
The use of just a prefix shortened the time to complete a QSO, and got to be
used in CQs (without the CQ :-))  ) and eventually in beacons..

The technique that used to be used was to sent 5 - 10wpm CW in a dash for
local stations say every complete call or every 15 mins. It does smear the
trace at short range but is perfectly OK at distance. These were often
missed as a lot dont listen when using the waterfall, and some thought the
TX was going unstable.

My guess is the queries come from stations who are receiving big signals so
would read the morse. The slower speed is sometimes better for weak signal
reception. Any Google of "136kHz "should lead to Riks page which will
explain all this. There is often the same problem with meteor-scatter and
satellite comms and maybe VHF moonbounce....lots of amateurs dont keep up
with the happenings. :-))

If the station is using a digital mode it is even more difficult.

Alan G3NYK

----- Original Message ----- 
From: "Stefan Schäfer" <Stefan.Schaefer@iup.uni-heidelberg.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, October 24, 2011 7:14 PM
Subject: LF: Full ID or just a suffix?


> Dear LF group and QRSS-60 TXing stations,
>
> I want to start a discussion that may have been done before.
>
> This is a forwarded message, showing the typical problem of newcomers
> who do not know what they receive if a station just transmitts a suffix.
> I find this is a pity.
> Maybe someone can expain me why just the suffix is sent? There is a lack
> of information as long as the receiving station is not a member of this
> reflector.
> It is not the only example. I got at least 4 mails within the last
> months, where new stations asked what station that is.
>
> Usually there are plenty of grabbers available which make ID clear. Even
> if a full callsign is lost in the QSB, there is a chance to verify who
> it must have been. Frequency and time can help to identify the traces.
> So why transmitting 8x GH instead of 3x GM3GH (an example) which could
> help to find an ID? I one receive a full call and is not a member of the
> reflector, there is a chance to find further informations in the web
> (qrz.com, and so on).
>
> Room for thought, as Mal would say.
>
> 73, Stefan/DK7FC
>
> (reduced the original screenshot in size)
>
>
> -------- Original-Nachricht --------
> Betreff: Re: QRSS
> Datum: Mon, 24 Oct 2011 05:20:44 +0400
> Von: Serge K <rv3apm@gmail.com>
> CC: schaefer@iup.uni-heidelberg.de
>
>
>
> Also please help
>
> what it?
>
> NM   OE ??    I see UR  DK7FC  but not understand another signals
>
> 73!  Serge RV3APM
>
>
>
>