Adjustment; Measuring Tx Output - Furuno CSH-8L Installation Manual

3. ADJUSTMENT

3.1

Measuring TX Output

1. Set up the control unit as follows:
Range: 400 m, Tx Power: 10 (max.), Vertical Scan: Narrow
Tilt: 0°, Tx Pulselength: 10 (max.)
2. Measure voltage at test point on TRX Boards 10P6862 (14 test points total) in the
transceiver unit with an oscilloscope.
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment
unless totally familiar with
electrical circuits.
Hazardous voltage which can
cause electrical shock exists
inside the equipment.
Transceiver unit
Transceiver unit, upper view
1 13 3 11 5 9 7
2 14 4 12 6 10 8
Measure at TP1-GND and
TP3-GND of each TRX
board.
TP1 (TX-H)
Odd column
TP5 (GND)
TP3 (TX-H)
Even column
3-1