From: MarkusVester@aol.com
Message-ID: <30.140a7ede.281b1a4d@aol.com>
Date: Fri, 27 Apr 2001 14:54:05 EDT
Subject: LF: Re CT1DRP, G3AQC; CW timing
To: rsgb_lf_group@blacksheep.org
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Hi Alberto and LF-group,

> Very good signals from CT1DRP and G3AQC, this latter
> using DFCW....
> http://www.qsl.net/i2phd/argo/drpaqc.html

Look for third faint trace in the image, 0.2 Hz above Laurie's HF dashes :-)

Re DFCW timing:

Usually, I try to roughly synchronize my QRSS / DFCW transmissions to a 
raster of dot-periods in a minute. Its easy to do that manually, I simply 
look at the DCF77-controlled clock on the wall and hit the Return-key at any 
integer multiple of 6s / 8s.

CW dash/dot ratio:

A classic 3-to-1 ratio may not be as efficient as 2-to-1, but it has an 
interesting property: All possible rising edges are locked to a fixed 
two-dot-raster, with an interleaved second raster for the falling edges. This 
might help a receiver to synchronize, and also contribute to the typical 
rythmic sound.    

73, have fun
Markus, DF6NM