JRC JUE-95LT -, Инструкция по эксплуатации

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5-1
5
CHAPTER 5. SPECIFICATION
5-1 JUE-95LT
Table 5-1 Principal Specification of JUE-95LT
Class of Inmarsat-C MES Class 1
Frequency range Transmission 1626.5-1646.5 MHz
Reception
1530.0-1545.0 MHz (EME: NAF-742LT)
1537.0-1544.2 MHz (EME: NAF-253LT)
Channel spacing 5 kHz
EIRP 7 - +16 dBW (at 5 degrees elevation angle)
G/T -23.7 dB/K minimum
Modulation Transmission 1200 symbols/sec. BPSK* (2nd generation satellite)
Reception
1200 symbols/sec. BPSK*
(BPSK: Binary Phase Shift keying)
Antenna
Type:
Helical antenna
Pattern Hemisphere (non directional)
Polarization Right hand circular
Power supply
Voltage
AC100V ～ 240V (when used EXT PSU, NBD-577C)
AC100V ～ 220V ±10% (when used EXT PSU, NBD-843A)
DC24V +30%, -20%
Power consumption
TX: 75 W (EME and IME)
RX: 15 W (EME and IME)
Environmental
Condition Ambient temperature
-35
°
C - +55
°
C (EME operational)
-15
°
C - +55
°
C (IME operational)
Preservation temperature
-40 ° C ～ +80 ° C (EME:NAF-742LT)
-40 ° C ～ +75 ° C (EME:NAF-253LT)
Relative humidity
95 % (+40 ° C)
Ice 25 mm (EME)
Precipitation 100 mm/hour (EME)
Velocity 100 knots
Vibration IEC60945 compatible
Coding Interleaved, convolutional code (R = 1/2, K = 7)
Data rate Transmission 600 bps
Reception 600 bps
Max transmission message 8K bytes
Reception message storage 80K bytes (INMARSAT-C: 40K bytes, EGC: 40K bytes)
Interface Internal GPS JRC original
DTE CCITTV 24/28, 9600 bps, 9 PIN DSUB connector
Printer Centronics compatible parallel interface
Dimensions
EME (NAF-742LT): 144 mm ( φ )
×
224 mm (
H
)
EME (NAF-253LT): 170 mm (
φ
)
×
379 mm ( H )
IME: 210 mm (W)
×
150 mm (D)
×
50 mm (
H
)
Mass
EME (NAF-742LT): 1.5 kg
EME (NAF-253LT): 2.4 kg
IME: 1.3 kg