The LO of Soft66LC4 is set to 7020kHz, and the RF signal from IC-7410 is either at +600Hz or at -600Hz.
The captured analog IQ-signals are highly saturated with somewhat higher gain with the I-channel (yellow) than with the Q-channel (purple).
Russian Morse code
http://en.wikipedia.org/wiki/Morse_code_for_non-Latin_alphabets
The Russian Morse code is based on the Morse code for the Latin alphabet. So if you can pronounce the Russian alphabet, it is easier to learn the Russian Morse code.
http://en.wikipedia.org/wiki/Wabun_code
On the contrary, the Japanese Morse code is much more difficult to learn, because there is no phonetic relationship between the Japanese and the Latin Morse codes.