NorthStar Navigation Echo Sounder NorthStar 491 User Manual

Northstar 491 echo sounder, Operations manual

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Northstar 491

Echo Sounder

Operations Manual

This manual is for using the 491 sounder with the
Northstar 957, 958, 961 and 962 navigators. For the
Northstar

6000i

, information in Section 6 of its manual can

be used instead.

Revision A

Part Number GM494

Northstar

a unit of Brunswick New Technologies Marine Electronics

30 Sudbury Road

Acton, Massachusetts 01720

www.NorthstarNav.com

Service: 978/897-6600

Sales: 800/628-4487

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