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HI Alberto. The fact is that CW differs little from USB and LSB, only in bandwidth and AGC delay time, unlike AM or FM. This is probably why it was not necessary to introduce CW fashion.
73 de R3MW Serge.

Отправил письмо Георгию 21.11.2019 на приобретение приёмника но ответа пока нет к сожалению.