Tx Frequency Checking - Furuno CH-250 Installation Manual

Check Item
Wiring check
Rejecting source of noise and
interference
Earth
Ship's mains voltage
Watertightness
3.2

TX Frequency Checking

Check the TX frequency after the installation.
1. Press the [MENU] key to open the user menu.
2. Press the cursor pad to select SYS at the top of the menu display.
MENU
GO TO SYS MENU
: SELECT
3. Press the [ ] to select GO TO SYS MENU.
4. Press the [ ] to select YES to display the system menu.
Table 3-1 general checks (con't)
•
All cables are correctly connected.
•
All lead wires are tightly fixed with contact
pins or crimp-on lugs.
•
All screws are firmly fastened.
•
Cables are firmly secured.
•
Cables shields are properly grounded.
•
Noise generating machinery (motor,
radiotelephone, TV set, etc.) are not placed
nearby.
•
Magnetic devices are not placed in the
vicinity of display unit.
•
Each unit is grounded with a copper strap.
•
Ship's mains voltage is stable 12, 24 or 32
VDC.
•
Water should not leak from the main body
flange or along the main shaft.
COM1 COM2 HORZ VERT
YES
: CHANGE
User menu (SYS)
Check point, Rating
ES SHORT-CUT
NO
MENU: END
37
SYS