Similar to cubesat XI IV, this Japanes picosatellite, developed by the university of Tokyo Nakasuka laboratory has been posting to Twitter
Transmitters
Mode U CW BEACON
Alive
True
Mode
CW
Downlink Low
437.4631 MHz
Mode U TLM
Alive
True
Mode
AFSK1k2
Baud
1200.0
Downlink Low
437.345 MHz