To Harald, Cinaed, and others interested in Morse code generation:
I have created a text to Morse code generator. See https://github.com/duggabe/gr-morse-code-gen
Yes, the MorseGen.grc is for 3.8, but if you replicate the flowgraph with 3.7 and use epy_block_0_0.py in an Embedded Python block, you should be able to have a functioning system.
Let me know if you have any questions. Happy New Year! and 73, -- Barry Duggan KV4FV On Sat, 28 Dec 2019 19:24:19 +0100, Harald Fritzsche wrote: Hello All, Hoping that amateur radio is not to far away from common use of Gnuradio mailing list, but amateur radio is making me looking to GR since 2001. There is a plan to use a Gnuradio based transceiver for µ-wave contesting, as it has been shown by W7FU or KB1VC (SoDaRadio) or DL9SW. A needed condition is, to key HF with morse code using a straigth or simple morse key. Doing this with just looking to the status of /dev/ttyUSB0-CTS pin is not sufficient, basically some of the keyed code is somehow swalloed. Neither with python code or with a C++ OOT module i got it solved. How to get this solved? (Hardware keying or modulated cw is not a real option). Regards and vy73 Harald DD0VS