18
1)
Control items: MF / HF
Transceiver, DSC, WATCH-KEEPING Receiver, selection of
transmitting and receiving frequencies
2) DISTRESS: 2187.5, 4207.5, 6312, 8414.5, 12577, 16804.5kHz sending alarm signal
3) Others: DISPLAY unit, remote interface, NBDP terminal, ATU BOX, ALARM BOX,
HAND MIC, DIMMER, etc.
4) MAIN PROCESSOR: ADSTARD16MF512, ATMEGA64L
5) EEPROM: 24LC256
6) Display: 5 inch color LCD (800 * 480)
7) INTERFACE
RS-232 INTERFACE: 1 CHANNEL equipment (NBDP)
RS-232 INTERFACE: 1 CHANNEL equipment (GPS)
3-6
DIGITAL SELECTIVE CALL (DSC)
1) PROTOCOL: CCIR Recommendations 493-3 and 541-2
2) EMISSION: F1B 100BAUD
3) Modulator:
Output frequency 1700Hz ± 85Hz, Output LEVEL Max. + 10dBm
(600 ohm unbalanced / balanced)
4) Demodulator:
Input frequency 1700Hz ± 85Hz, Input LEVEL
-20dBm ~ + 5dBm
(600 ohm unbalanced / balanced)
5) Processor: 10-unit ERROR detecting code shown in Code CCIR Recommendation 493-3
•
CLOCK transmitting method: correction
•
CLOCK frequency: 14,000kHz
•
CLOCK stability: w
ithin ± 5
x 10
-6
.
6) DSC Memory function
•
Distress reception: 50
•
Ordinary reception: 50
•
Transmitting messages: 100
3-7
NARROW BAND DIRECT PRINTING (NBDP)
1) PROTOCOL: CCIR Recommendations 625, 476-4, 490, 491, 492-3 and CCIR
Recommendations F130
2) Calling MODE: Individual and group call, 5-digit and 9-digit SELECT CALL number
3) Operating MODE: ARQ (Automatic repeat request)
