Tx Pwr (Sel Call) - Furuno FS-1575 Service Manual

5. Press the PTT on the handset. Transmission will be initiated to display IA, IC, and
VC set values on the window.
6. Turn the knob to make power data setting so that output power will come to a
specified level.
7. Press the [ENTER] knob. The relevant power data will be registered.
Returning power data of the registered TUNE to the default
1. Select on <LOAD DEFAULT> on the "TX POWER (TUNE)" window, and then
press the [ENTER] knob.
2. A message saying "Default Setting OK?" will be popped up. Select "YES," and
then press the [ENTER] knob. TUNE power data will return to the default.

5.2.5 TX PWR (SEL CALL)

The Sub-menu "TX PWR (SEL CALL)" is used to make TX output power for SEL
CALL at a 2331.5 kHz frequency.
The points of TX output power adjustment for SEL CALL are as follows:
1) No modulation is performed. This Sub-menu is used to make adjustment of carrier
wave power.
Reference)
The carrier wave power is 1/4 W of the rated output power of SSB wave.
2) Output power adjustment can be made regardless of setting of [MENU] -> 9.
SERVICE -> 3.RT SETUP -> 1.SETUP -> "SELCALL" or "AM MODE."
3) Even if the frequency on the RT window is set to any level, the frequency will be
set to "2331.5 kHz" and the mode will be set to "AM" when entering the "TX PWR
(SEL CALL)" window.
4) The adjustment of modulation of SEL CALL wave is made by line output from the
SEL CALL system or by selecting [MENU] -> 9.SERVICE -> 3.RT SETUP -> 1.
SETUP -> "LINE IN." The line-in level is 0 dBm / 600 ohms and adjustable in the
range of 0 ± 10 dBm.
CONFIDENTIAL (internal use only)
This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
5.2 T/R Unit Output Power Adjustment and Measurement
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