Furuno CSH-7 - Manual (Page 50)

9-2
Range, TX cycle, pulselength
Range, range display
1. Ranges shown for off-center on are maximum.
2. Fish school may not be detected depending on
its nature or sea conditions, even if it is located
within the display range in use.
Pulselength 0.5 to 10 msec, interlocked with range, eleven settings
TX cycle 0.2 sec to 4.0 sec, interlocked with range, eleven settings,
can be synchronized with external keying pulse
Audio Search
Searching method Echoes in the direction of the bearing marker are audibly
monitored with built-in loudspeaker.
Audio output 2 W
Audio frequency 1 kHz
Transmitter Unit
Transmitter section High power MOS FET amplifier
Receiver section Low noise superheterodyne, continuously scanning beam
forming, GAIN, TVG (near, far), AGC
Tx frequency 55 kHz or 70 kHz
) m ( e g n a R
) m ( e g n a r y a l p s i d m u m i x a M
F F O r e t n e c - f f O N O r e t n e c - f f O
5 8 0 1 1 5 3 1
0 0 1 0 3 1 0 6 1
0 5 1 5 9 1 0 4 2
0 0 2 0 6 2 0 2 3
0 5 2 5 2 3 0 0 4
0 0 3 0 9 3 0 8 4
0 5 3 5 5 4 0 6 5
0 0 4 0 2 5 0 4 6
0 5 4 5 8 5 0 2 7
0 0 5 0 5 6 0 0 8
0 0 6 0 8 7 0 6 9
0 0 8 0 4 0 1 0 8 2 1