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FURUNO
FS-1570/2570/5070
SP - 2 E5656S01A-M
080414
1.3.3 Sensitivity Input level at 10 ohm+250 pF (below 4 MHz) and 50 ohm
(above 4MHz) to produce SINAD 20 dB
Frequency Range J3E/H3E
100 kHz to 300 kHz 35 dBµV
300 kHz to 1.6 MHz 25 dBµV
1.6 MHz to 4.0 MHz 13 dBµV
4.0 MHz to 30 MHz 7 dBµV
1.4 Intermediate frequency 1st: 72,455 kHz, 2nd: 455 kHz
1.5 Selectivity J3E: 2.4kHz at -6dB, H3E: 6kHz at -6dB, J2B (F1B): 300Hz at –6dB
1.6 Inter-modulation Better than 80 dBµV
1.7 Spurious response Better than 70 dB
1.8 AGC SLOW/FAST/OFF
1.9 BFO frequency Telex/DSC: 1,700 Hz, Facsimile: 1,900 Hz
1.10 Audio output power FS-1570/2570: Internal speaker: 3W/8 ohm
External speaker: 4W/4 ohm
FS-5070: Internal speaker: 1W/8 ohm
External speaker: 3W/4 ohm
Handset: 2.5mW/150 ohm, Line output: 0 dBm/600 ohm
1.11 Standard features Noise Blanker, Voice-activated squelch, Pre-selector
2 DSC/WATCH KEEPING RECEIVER
2.1 DIGITAL SELECTIVE CALLING
2.1.1 Frequency shift Space: 1785.0 ± 0.5 Hz, Mark: 1615.0 ± 0.5 Hz
2.1.2 Baud rate 100 bps ± 30 x 10
-6
2.1.3 Protocol FS-1570/2570: ITU-R Rec.M493-10, M541-8, M1082-1
FS-5070: ITU-R Rec.493-11, 541-9
2.1.4 Modulation AFSK
2.1.5 Distress alarm 3.5 s to 4.5 s self-repetition
2.1.6 Distress alarm memory 50 messages
2.2 DSC/WATCH RECEIVER (FS-1570/2570)
2.2.1 Frequency range
DISTRESS 2187.5/ 8414.5 and 4207.5/ 6312/12577/16804.5 kHz
ROUTINE 2187.5 kHz
2.2.2 Class of emission F1B, J2B
2.2.3 Antenna impedance 50 ohm
2.2.4 Local oscillator 1st: F+54,455 kHz, 2nd: 54,000 kHz, 3rd: 456.7 kHz
2.2.5 Frequency stability ±10 Hz
2.2.6 Intermediate frequency 1st: 54,455 kHz, 2nd: 455 kHz