Standard	IMO resolution A.694 ( 17 ) ( 1991 ) IMO resolution A.803 ( 19 ) ( 1995 ) IMO resolution MSC.68 ( 68 ) ( 1997 ) IMO MSC / Circ.862 ( 1998 ) IEC 60945 Ed.4.0 ( 2002-08 )
Display	5 inch TFT color LCD, 800 × 480 dots ( WVGA ), Brightness: 1000 cd/m2
Communication modes	Simplex and semi-duplex press talk system
Transmission frequency	Simplex / semi-duplex : 155.000 - 163.500 MHz
Reception frequency	Simplex / semi-duplex : 155.000 - 163.500 MHz
Antenna output power	6 - 25 W ( when reducing : 0.5 - 1 W )
Modulation method	FM / FSK
Type of emission	Radiotelephone communications : F3E / G3E DSC / ATIS : F2B / G2B
Channel spacing	25 kHz
Frequency accuracy	±10 × 10-6 or less
Antenna impedance	50 Ω unbalanced
DSC CH70 recevier	Receiver : built in Frequency : 156.525 MHz
Number of channels	ITU : Maximum 65 ch USA : Maximum 65 ch Canada : Maximum 65 ch Inland waterway : Maximum 65 ch Private : Maximum 200 ch ( channel steps : 25 kHz, 12.5 kHz, 10 KHz ) Weather : Maximum 10 ch Memory : Maximum 10 ch
Power supply voltage	24 VDC : 4.5 A
Power consumption ( 24 VDC input )	25 W when transmitting : Maximum 4.5 A / 108 W When receiving : Maximum 1.5 A / 36 W
Interface
Ports	IEC 61162 - 1 : 1 port For GPS information input IEC 61162 - 1/2 : 1 port For AIS information input, brightness control and BAM communication LAN ( IEC 61162 - 450 compliant ) : 1 port For radar, ECDIS, RMS ( VDR ), GPS, AIS, DMC, brightness control, printer and BAM communication Voice line output ( 600 Ω, balanced ) : 1 port For VDR / S-VDR connection Voice line output ( 600 Ω, unbalanced ) : 1 port For external speaker connection
Audio output	Built-in speaker ( 4 Ω ) : 6 W or more Handset ( 150 Ω ) : 1 mW or more
NMEA0183 version	Ver1.5 / 2.0 / 2.3
NMEA0183 input sentence	ALR, GGA, GLL, GNS, RMC, VDM, VDO, ZDA
Environment
Operating temperature	-25℃ to +55℃
Storage temperature	-40℃ to +80℃
Waterproofing	Marine VHF radiotelephone : IP56 Handset : IP66 VHF controller : IP56