User's Manual Part 2

37
Maintenance Guide
General Points to Check
• Periodically make sure that the antenna connector is well sealed and that
there isn’t sign of corrosion around the PL259 connector
• Make sure connections to the back of the NAV-7 display are secure
Cleaning Instructions
• Periodically clean the LCD front window with a soft lint-free cloth (such as
those supplied by opticians to clean spectacles)
• Do not used cleaning solvents on any part of the NAV-7
Disposal at end of life
At the end of its life dispose of this product in accordance with local regulations.
OPTIONS
NAV-7 ancillary parts:
Model Description Code
Active NAVTEX
antenna
518 – 490 kHz + 4209.5 kHz, PL Socket, white glass
fibre construction with 1inch nut fitting
905-05
NAV-CLAMP
Pole mount stand-off bracket for NAVTEX Antenna,
1inch bolt mount fitting.
903-01
NAV-CLAMP /b
Pole or Wall mount stand-off bracket for NAVTEX
Antenna, 1inch bolt mount fitting
903-02
NAV-CLAMP /c
Deck mount for NAVTEX antenna, 1inch bolt mount
fitting
903-04
NAV-CABLE 20 20 m antenna cable kit
35-820
External Power Supply
Unit
AC/DC + auto changeover to reserve power
110 / 220 V AC input
89-029