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From: "Mike Dennison" <mike.dennison@ntlworld.com>
To: rsgb_lf_group@blacksheep.org
Date: Sun, 20 Aug 2006 16:06:40 +0100
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Subject: Re: LF: QRSS/DFCW timing
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Status: O

Dick,

There are no fixed periods. The essential thing is to keep QSOs as 
short as possible. 

A typical minimum QSO might be:

CQ G3XDV K
	(note that 'de' is never used and only one
	 callsign is sent)
G3XDV PA4VHF K
PA4VHF XDV O O K
	(just the sufffix is used after full callsigns
	 have been exhanged. Reports are O for 
	 100% readable, M for readable with difficulty,
	 and T for unreadable)
XDV VHF R O O TU SK
	(use TU for "thank you")
VHF XDV R TU SK
	(and that is the end)

When there is more time, you might give a locator. Some stations send 
"73", but this is very time-consuming. A question mark is used as a 
short form of "QRZ?"

 For an expedition things might be even more brief as they are on HF 
(but some people argue that full calls must be exchanged to make a 
valid QSO). Perhaps an expedition with callsign LX1XX might have QSOs 
like this:

CQ LX1XX
XX G3XDV K
G3XDV O K
R O SK
R SK

XX G3YXM K
G3YXM O K
R O SK
R SK

and so on .....

There have been QSOs where the DX station works two people at once 
since two QRSS stations can often be copied at once, but I would not 
recommend this.

I do suggest that before you leave home you notify this group of your 
transmit frequency (say 137.730kHz) and a receive range (say 137.680-
137.690kHz) and try to operate split to avoid long delays when 
unsuccessful callers are still on your frequency.

Hope this helps.

Mike, G3XDV
==========

> I wonder if there is anything about fixed TX/RX periods when using
> QRSS/DFCW. I mean like it is used to be on moonbounce and
> meteorscatter for instance.
> 
> Like transmit 5 minutes, RX 5 minutes, all synchronized of course by
> starting at exact the whole hour or so.
> 
> Transmitting QRSS is no longer a question for me, but I do not have
> any experience in the 'real' QSO's. There is a need to find a way to
> make QSO's as efficient as possible, and also as quick as possible
> during the upcoming DX-pedition, because I will be limited in
> operation time, and want to work as many as possible, hi. DFCW could
> be a nice solution to save time.
> 
> 73
> 
> Dick