Furuno FAR-2107 Series Service Manual page 341

3. Heading pulse: Slave-1, 2 (J617, 618-#2pin)
The pulse length changes according to the antenna speed. The heading pulse is turned
ON in a range of 0 to 90 degrees and the duty ratio is 1:3.
12 V
Fig. 4.16.6 HD Pulse Waveform and Duty Ratio (no load)
4. Video signals of S-band radar: Slave-1, 2 (J617, 618-#8pin)
ANT Stop Slave-1 #8 Open: Video (Full-log)
Fig. 4.16.7 Video Signals of Slaves 1 and 2 of S-Band Radar -1
5 Vp-p
1 V, 10 us/div
Model ANT rpm
24 rpm
X band
36 rpm
42 rpm
21 rpm
S band
26 rpm
45 rpm
Picture of the Master
12 NM, Long pulse
GAIN: 70, STC: 82, FTC: 33
IR: OFF, ES: OFF, EAV: OFF
Auto FTC: OFF
ANT Stop
Trigger
ANT Stop Slave-2 #8 Open: Video (Semi-log)
4-77
4.16 Sub Monitor
ANT/REV. HD ON
2.5 sec 0.62 sec
1.7 sec 0.42 sec
1.4 sec 0.36 sec
2.9 sec 0.71 sec
2.3 sec 0.57 sec
1.3 sec 0.33 sec
5.5 Vp-p
1 V, 10 us/div