Screen Specifications:
• Screen: 10.4-inch LCD,
• Resolution: 640 by 480 pixels, 450cd/m2
*** Receive/transmit parameters:
• Antenna NAF-253GM: Single coax cable up to 100 m
     Type helical, pattern hemisphere Polarization right-hand circular
• Frequency: Transmit 1626.5-1646.5 MHz
     Receive 1537.0-1544.2 MHz; GPS 1575.42 MHz ±1 MHz
• Channel spacing: 5kHz
• E.I.R.P.: Within 14±2dBW (at 5° angle)
• G/T: -23.0dBk (minimum)
• Modulation: Transmit and receive 1200 symbols/sec BPSK
• Data rate: Transmit and receive 600bps
*** Other parameters:
• Interfacing: 3 external buzzers JB1: 1x, JB2: 2x
• Junction box 1 standard (JB1): 1 GPS input (NMEA) JB1
• Messaging unit (MU): 2 remote distress buttons JB1: 2x 4 SSAS buttons JB1: 2x, JB2: 2x
• Power supply: 24V DC
*** Options:
• Junction box 2 optional (JB2): 1 alarm output (dry contact) JB1
     1 alarm/GPS output (Alarm message to INS or GPS internal data – NMEA) JB1
     1 alarm/AIS input (Alarm ack from INS or AIS input for Russian regulations – NMEA) JB1
     1 LAN (PC with JCmail or RMS info to VDR and JUE-501 alarm info backup RMS) MU
     1 DTE (connecting a remote data terminal NDZ-227 or PC with JCmail) MU 1 keyboard MU,
     1 printer (analog port) MU
     1 serial (connecting e.g. a PC, serial printer or use for maintenance) MU 1 distress message controller JB1
• Messaging unit NTF-318: Power 19.2-31.2V DC
     Consumption transmit 100W, standby 24W
• NKG-800 printer: Line interface parallel
     Power supply (printer): 19.2-31.2V DC Consumption 35W (max)
• Power supply NBD-904: Line voltage 100-230V AC, 24V DC
     Line voltage selection 90-264V AC, 19.2-31.2V DC Output power 24V DC, 6.5A (continuous)