Table of Contents
Advertisement
preferred mounting location
recommended incline angle
thru-hull installation with a fairing block
M
Maintenance, transducer
N
Northstar 490 Echo Sounder. See Echo sounder
Northstar 957 GPS/WAAS Chart Navigator
Northstar 961/962 GPS Chart Navigator
Northstar Technologies
feedback on manuals
sales department
26
service department
website. See Website addresses
P
Parts, ordering. See Technical support
S
Safety considerations
490
13
transducer
5
Service. See Technical support
Software upgrades, obtaining
Specifications
29
STAT (status) indicator light
T
Technical support
contacting Northstar
ordering parts
27
repairing the 490
27
repairing the transducer
28
returning the 490
Transducer
definition of
31
installation. See Installation, transducer
maintenance. See Maintenance, transducer
mounting. See Installation, transducer
purchasing
7
6
recommended
service, parts and repair
Troubleshooting
diagnostics screen
25
flow chart
installation checklist
installation problems
U
Upgrades, obtaining software
W
3, 28
Warranty for the 490
Water column, definition of
Website addresses
Airmar Technology Corporation
Northstar Technologies
Page 34
8
10
11
1, 3, 15, 21
1, 3, 15, 21
27
26
21
16, 21
26
27
27
23
22
23
21
32
7
7, 26, 27
10
490 INSTALLATION MANUAL, Revision B2
Advertisement
Table of Contents
