Furuno FAR-2107 Series Service Manual page 509

Pulse
Width
(u-sec) 0.125 0.25
B.W: 40 MHz
S: 0.08 PRF: 1900 Hz
*2nd: 1900 Hz
M1: 0.2
M2: 0.6
L : 1.2
Note:
- B.W (Band width)：
IF frequency: Receiving bandwidth of 60 MHz
- PRF ( Pulse Repetition Frequency)：
The Repetition Frequency is not constant to avoid Radar interface from other radars.
The Jamming range is approximately +10% of the Repetition Frequency. When the Antenna is
stopped, the Repetition Frequency is constant.
- 2nd: Repetition Frequency of the 2
The Repetition Frequency is changed when the setting on [MENU] -> 1: ECHO -> 1: 2ND
ECHO REJ is ON.
Range scale
Range ring
The number of rings
Range scale
Range ring
The number of rings
Note:
The ranges in the meshed frames are not available for IMO and A type. For changing the
Model Type, change the setting of "IMO, A, B, C and W" on [Menu] -> 0 -> 4 -> 7.
0.5 0.75 1/1.5 2
B.W: 10 MHz
PRF: 1100 Hz
*2nd: 500 Hz
nd
trace mode
0.125 0.25 0.5
0.025 0.05 0.1
5 5 5
8 12 16
2 2 4
4 6 4
Table 9.1.5 Transmitted Pulse Width and PRF
Range (NM)
3 4 6 8 12/16
B.W: 10 MHz
PRF: 600 Hz
*2nd: 500 Hz
B.W: 3 MHz
PRF: 600 Hz (96/120 nm: 500 Hz)
*2nd: 500 Hz
Table 9.1.6 Range Scale and Range Ring
0.75 1 1.5
0.25 0.2 0.25
3 5 6
24 32
4 8
6 4
9-5
9.1 Overview
24 32 48 96/120
2 3 4
0.5 0.5 1
4 6 4
48 96
8 16
6 6
6
1
6
120
20
6