SP - 2
(6)
Range, Pulselength (PL) & Pulse Repetition Rate (PRR)
FR-1710/1725:
Range (nm)
PL
PRR (Hz)
0.125
0.25
0.5
0.75
1.5
3
6
12
24
48
72
96
S1P
3000
0.07
µ
s
S2P
3000
0.15
µ
s
M1P 1500
0.3
µ
s
M2P 1000
0.5
µ
s
M3P 1000
0.7
µ
s
LP
600
1.2
µ
s
*: Second echo trace mode PRR; 500 Hz
Maximum Range: FR-1710: 72 nm, FR-1725: 96 nm
FR-1760DS:
Range (nm)
PL
PRR (Hz)
0.125
0.25
0.5
0.75
1.5
3
6
12
24
48
72
96
120
SP
1900
0.08
µ
s
M1P 1100
0.3
µ
s
M2P 600
0.6
µ
s
LP
600
*
1.2
µ
s
*: 450 Hz on 120 nm range
(7)
Duplexer
Ferrite circulator with diode limiter
(8)
Noise figure
FR-1710/1725: 6 dB, FR-1760DS: 4dB
3. RADAR DISPLAY
(1)
Picture tube
17" color CRT, Effective display diameter: 225 mm
Yellow or green echoes in 16 levels
(2)
Scanning
Raster scan at scanning frequency 48.3 kHz horizontal, 60 Hz vertical.
Number of scanning lines 768, non-interlaced.
(3)
Range scales and ring intervals
Range(nm)
0.125
0.25
0.5
0.75
1.5
3
6
12
24
48
72
96 120
Ring interval(nm)
0.025
0.05
0.1
0.25 0.25 0.5
1
2
4
8
12
16
20
No. of Rings
5
5
5
3
6
6
6
6
6
6
6
6
6
Maximum Range: FR-1710: 72 nm, FR-1725: 96 nm, FR-1760DS: 120 nm
(4)
Range discrimination
34 m on 1.5 nm range
(5)
Bearing discrimination
XN12AF: 2.03
°
, XN20AF: 1.46
°
, XN24AF: 1.18
°
SN4A: 2.83
°
, SN5A: 2.53
°
(6)
Minimum range
28 m
Содержание FR-1710
Страница 1: ...MARINE RADAR MODEL FR 1710 1725 1760DS...
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