Lowrance 3500c 操作ガイド

72 

2. Press 

↓ to 

|

|

↓ to 

|

. 

3. A menu appears showing the prefixes of the available NMEA sen-
tences. A check mark next to a prefix means the prefix is in use. Use 

↑ 

↓ → ← to select a prefix, then press 

 to turn off the prefix. (Press 

 again to check the box and turn a prefix on.) 

4. When the desired prefixes are checked or unchecked, press 

|

|

|

 to return to the previous page. 

Coordinate System Selection 

The Coordinate System Menu lets you select the coordinate system to 
use when displaying and entering position coordinates. 

 

 

Menus for changing coordinate system used to display positions. 

To get to Coordinate System Selection: 

1. Press 

|

|

↓ to 

|

. 

2. Press 

↓ to 

|

. 

This unit can show a position in degrees (36.14952°); degrees, minutes 
and thousandths of a minute (36° 28.700'); or degrees, minutes, seconds 
and tenths of a second (36° 28' 40.9"). It can also show position in: UTM 
(Universal Transverse Mercator) projection; MGRS (Standard); MGRS 
(Standard + 10); Map Fix; Loran TD; British, Irish, Finnish, German, 
New Zealand, Swedish, Swiss, Taiwan and Greek. 

UTM's are marked on USGS topographic charts. This system divides 
the Earth into 60 zones, each 6 degrees wide in longitude. 

British, Irish, Finnish, German, New Zealand, Swedish, Swiss, Taiwan, 
and Greek grid systems are the national coordinate system used only in 
their respective countries. In order to use these grid systems, you must 
be in the respective country. This unit will pick the matching datum for