The Equipment

gps sattelite equipment smc iss


VHF Radio

Frequency Range 136 – 174 MHz
Channel spacing 12.5, or 20, 25 KHz
 Frequency error  ± 2 ppm
RF-bandwidth  28 MHz
Antenna impedance 50 Ohm
Temperature range -25° to + 55°C

VHF Antenna

Frequency Range 136-174 Mhz
 Band Width @ 2:1 VSWR 5%
Terminations BNC

Internal Alarm Switches

No of alarms 8
Switches 4 bi-directional toggle
Indicators 8

Off = No alarm

Flashing = Sending alarm to the central control system

Steady = Alarm received at the central control system

External Alarm Switches

 No of alarms 32
Contacts Volt-free Contacts, One per alarm
Indicators 8

Off = Contacts open

Flashing = Contacts Closed (Sending to central control system)

Steady = Contacts Closed (Received at central control system)

Messaging System

 Terminal PC, Laptop, Palm PC or Custom terminal
Data mode 9,600 Bps
Max Message size  256 Bytes. Larger messages may be split into 256 Byte pieces.
Routing Through a central control system

External Instrumentation

Data mode ≤19,200 Bps
Interface RS232/RS485
Message Format Custom software to read the instrument and format messages

Inmarsat Satellite operation

Terminal eCTrack
Transmit Frequency

Receive Frequency

1626.5 to 1660.5 MHz

1525.0 to 1559.0 MHz

 Channel Spacing  5 / 2.5 / 1.25 kHz
Data Rate  600 bit/sec.
RX Frame Length 8.64 seconds
DC Power Source 10.5 to 32 V floating DC
RX Power Requirement :1,8W
TX Power Requirement 23 W @ 12V supply
Throughput 200 Byte/Second

Thuraya Satellite operation

Interface RS232
Modem Commands Hayes AT Commands. Some special Thuraya GSM modem options.
Speed 9600 Bps