5690 JSDF Comms?

I have been hearing Japanese comms on 5690 USB lately. Last night I monitored what sounded like JJN6 wkg 1BM giving weather conditions for Nagasaki. I have also noticed that the stations occasionally exchange what sounds like RTTY data in between voice comms. The frequency can be heard from California most nights between 0800z and 1200z.

Listen to the audio 

 

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