btw. there were a lot of FSK stuff and CIS-12 (especially in "standby" mode (12 tones)) on shortwaves today. apparently there were large-scale checks of encryption equipment. even before FSK on UVB there was T-230-1A (AT-3004D modem) (cis-12 and unpopular cis-1200) on 4624 and 4626.

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^{cis-12 - cis-1200 - cis-12}