The FS-1570 and FS-2570 are new MF/HF radiotelephones for general communications and GMDSS applications. Provided in addition to radiotelephony operation are DSC (Digital Selective Call) on general communications and DSC Watch Receiver on all distress and safety frequencies in MF and HF bands. The FS-1570 and FS-2570 maintain a continuous watch on a distress call even while you are exchanging normal voice messages. DSC channels can be individually set or all selected channels can be automatically scanned. When a DSC message is received, the radiotelephone gives audible and visual alarms.
The FS-1570 and FS-2570 work on all authorized transmit frequencies between 1.6 and 27.5 MHz. Receiver frequencies are selectable between 100 kHz and 30 MHz in 10 Hz steps. The transmit and receive frequencies can be selected separately or in pair. The digital frequency synthesizer provides high frequency stability for DSC and NBDP as well as telephony operation. The compact cabinet allows a flexible and spacesaving installation in a communication console.
Optional equipment include a distress alert unit, received call unit, remote control unit and distress message control unit. In addition, a telex modem (NBDP) can be accommodated in the transceiver unit for general message transfer and distress message/maritime safety information handling, satisfying the carriage requirement in GMDSS A3- A4 sea areas.