Furuno gd-1700c Manuel D’Utilisation
3. RADAR OPERATION
3-8
3.8 Pulselength
The pulselength in use is displayed at the upper left corner of the display.
Appropriate pulselengths are preset to individual range scales. Therefore, you
are not usually required to select them. If you are not satisfied with the current
pulselength setting, however, it is possible to change it for the ranges shown
below. Generally, select a longer pulse for longer detection range and shorter
pulse for better range discrimination.
1.5 nm 1.5 sm, 3 km: Short pulse, medium pulse
3 nm , 3 sm, 6 km: Medium pulse, long pulse
1. Press HIDE/SHOW to show soft the radar soft keys.
2. Press the SIGNAL PROC. soft key.
Appropriate pulselengths are preset to individual range scales. Therefore, you
are not usually required to select them. If you are not satisfied with the current
pulselength setting, however, it is possible to change it for the ranges shown
below. Generally, select a longer pulse for longer detection range and shorter
pulse for better range discrimination.
1.5 nm 1.5 sm, 3 km: Short pulse, medium pulse
3 nm , 3 sm, 6 km: Medium pulse, long pulse
1. Press HIDE/SHOW to show soft the radar soft keys.
2. Press the SIGNAL PROC. soft key.
.250/ 319.9
°
M
.125nm
SP
SP
H-UP
SIGNAL
PROCESS
PROCESS
+
359.9
°
R
0.240nm
RETURN
E. AVG
OFF
I. REJ
LOW
PULSE
E. STR
LOW
Shown when radar
source is the Model
1800/1900 series
network radar. Not
shown otherwise.
source is the Model
1800/1900 series
network radar. Not
shown otherwise.
Signal process soft keys
3. Choose the 1.5 or 3 nm range with the RANGE key.
4. Press the PULSE soft key to select the pulselength setting. SHORT or
4. Press the PULSE soft key to select the pulselength setting. SHORT or
MEDIUM for 1.5 nm, 1.5 sm, 3 km and MEDIUM or LONG for 3 nm, 3 sm,
6 km.
6 km.
5. Press the RETURN soft key to finish.