7-80J4 A
 Which statement regarding GMDSS MF/HF Transceiver frequency set-up is true:
A. Some consoles allow both manual keypad entry and ITU channel recall from a database or memory.
B. Transmit and receive frequencies must always be manually entered from the keypad.
C. Transmit and receive frequencies must always be recalled from a database or memory.
D. Frequencies in the manufacturer's databases are always accurate and legal for use.
