Ka-Band External Reference
It is offered in 5 Ka-band frequencies: 9000XA-4: 18.2 ~ 19.2 GHz, 9000XB-4: 19.2 ~ 20.2 GHz, 9000XC-4: 20.2 ~ 21.2 GHz, 9000XD-4: 21.2 ~ 22.2 GHz, 9000XE-4: 17.2 ~ 18.2GHz.