Furuno FR-2125V - Manual (Page 24)

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1.11 Selecting the Range Scale
The display range scale is changed by pressing the [+] and [-] keys. The selected range
scale and range ring interval are shown at the upper left corner on the screen. When a
target of interest comes closer, reduce the range scale so that it appears in 50–90% of the
display radius. The range scales are:
0.25–0.5–0.75–1–1.5–2–3–4–6–8–12–16–24–32–48–96 SM
1.12 Selecting the Pulsewidth
The pulsewidth in use is displayed at the upper left-hand position of the screen using the
abbreviations shown in the table below.
Appropriate pulsewidths are preset to individual range scales and function keys. There-
fore, you are not usually required to select them. If you are not satisfied with the current
pulsewidth settings, however, it is possible to change them on the RADAR 1 menu as
shown in paragraph 1.12.2.
You can choose the pulsewidth 1 or 2 on the scales 0.5 to 24 SM ranges.
1.12.1 Selecting pulsewidth 1 or 2
1. Press the [RADAR MENU] key to display the FUNCTIONS 1 menu.
2. Press the [6] key to select PULSE WIDTH 1 or 2 as appropriate.
3. Press the [RADAR MENU] key to close the FUNCTIONS 1 menu.
Table 1-1 Available pulsewidths
l e b a L h t d i w e s l u P
) 1 e s l u p t r o h S ( 1 S s µ 7 0 . 0
) 2 e s l u p t r o h S ( 2 S s µ 5 1 . 0
) 1 e s l u p m u i d e M ( 1 M s µ 3 . 0
) 2 e s l u p m u i d e M ( 2 M s µ 5 . 0
) 3 e s l u p m u i d e M ( 3 M s µ 7 . 0
) e s l u p g n o L ( L s µ 2 . 1
1.12.2 Presetting pulsewidth 1 and 2
Pulsewidth 1 and 2 can be preset on the PULSE WD 1 and 2 menus. Shown below are
examples of the pulsewidth setup procedure.
1. To enable selection of S1 (0.07
µ
s) and S2 (0.15
µ
s) pulsewidth on the 0.5 SM range,
select S1 at 0.5 SM on the PULSE WD 1 menu and S2 at 0.5 SM on the PULSEWIDTH
2 menu.