Hi Stefan,

"PiCW" has 2 nice features:
- frequency calibration against NTP
- soft keying; may be helpful if QRO...

On 09.10.2015 23:23, DK7FC wrote:

...
This is not suitable for DFCW.

Since it's open source and well commented, it
should be possible to modify it for dual frequency
morse.

Do you have some experience with the software?

No.

Ist -w 0.0001 possible for
QRSS? I can imagine that -w 1 is the lowest speed!

Can you?
The speed chain is defined as "double" completely.
See line 968: "const double dot_duration_sec=1.2/wpm;"

So this should work. May be the soft keying constants
need some fine tuning.

Peter, df3lp