FURUNO
FA-50
SPECIFICATIONS OF CLASS B AIS TRANSPONDER
FA-50
1 GENERAL
1.1 Type Class B AIS Transponder
1.2 RX capacity 2250 report/minute, 1channel
4500 report/minute, 2channel
1.3 RX system CSTDMA dual wave simultaneous reception
1.4 Synchronous framing Indirect synchronize from external oscillator
1.5 Operating mode Autonomous, Assigned, polled/interrogation response
1.6 Frequency switching Automatic
1.7 Prevention of abnormal TX Auto-suspend for detecting TX more than 1 second
1.8 Regulations IMO MSC.140 (76), IEC 62287-1, ITU-R M.1371-2,
DSC ITU R M.825-3, IEC 60945 ed.4 adopted
2 TRANSMITTER
2.1 Frequency range 156.025 MHz to 162.025 MHz (F1D)
2.2 Output power 1W/2W
2.3 Channel interval 25 kHz
2.4 Frequency deviation ±3 ppm or less
2.5 Transmit speed 9600 bps ± 50 ppm
2.6 Spurious Emission 9 kHz to 1 GHz, -36 dBm or less
1 GHz to 4 GHz, -30 dBm or less
3 AIS RECEIVER
3.1 Frequency range 156.025 MHz to 162.025 MHz (DSC: 156.525 MHz)
3.2 Oscillator frequency 1
st
local oscillator: f + (51.136/51.236 MHz)
2
nd
local oscillator: 51.1/51.2 MHz
3.3 Intermediate frequency 1
st
: 51.136/51.236 MHz, 2
nd
: 36 kHz
3.4 Receiving system Double-conversion superheterodyne
3.5 Sensitivity -107 dBm (PER 20% or less)
3.6 Error at high input level -7 dBm
3.7 Co-channel rejection 10 dB
3.8 Adjacent channel selectivity 70 dB
3.9 Spurious response 70 dB (50 MHz to 520 MHz)
3.10 Inter-modulation 65 dB
3.11 Sensitivity suppression 86 dB (±5 MHz, ±10 MHz)
4 DSC RECEIVER (TIMESHARING SYSTEM)
4.1 Frequency 156.525 MHz (CH70)
4.2 Sensitivity -107 dBm or less
4.3 Error at high input level -7 dBm
SP - 1 E4442S01B
