How To Adjust Tune Power - Furuno FS-1503 Service Manual

How to adjust TUNE power

Tune power data is factory-adjusted to 40. Do not change this setting unless
Furuno asks you to change this setting. Too high setting may cause the antenna
coupler to burn out.
1. Select a TX channel. For example, select the ITU channel 401.
2. Press [TUNE/7].
TUNE appears on the display and the coupler starts tuning. When the tuning is
completed successfully, TUNE OK appears.
3. While pressing and holding down [ENT], press [TUNE/7], and TUNE power data
appears.
4. Set power data by rotating the FREQ/CH knob.
The data can be set to from 0 to 60.
5. Press [ENT] to register the power data.
T appears during TX.
4001
ITU R
DUP 40
TR
0 2 4 6 8 10
AGC NB
TUNE
J3E
4-16
ITU Channel Number
TUNE Power Data
During TX, RF output level can be read.