Operation Manual

RS25 Operation and Installation Manual 9RS25 Operation and Installation Manual
A typical operational display on the AHK05 Optional Handset LCD:
1-6 How the Microphone and AHK05 Optional Handset Work Together
Consult the RS25 Quick Start Guide for additional operational instructions.
If you have the optional AHK05 handset installed on your RS25:
•  neitheritemwilltransmitwhilebothareONhook,butyoucanheartheaudiofromthe
handset speaker and adjust the handset volume.
•  touseoneitemwhenit’sOFFhook,theotheritemmustbeONhook.
•  ifbothitemsareOFFhook,onlythemicrophoneworks.
•  inIntercommodeONLY,bothitemsworkOFFhook.
1-7 Basic Operation and Key Functions
All possible keys on the base unit, the microphone, and the optional handset are listed and their func-
tions are explained.
NOTE: Some keys or functions may not be available on your particular model of base
unit, microphone, or optional handset. This example shows the RS25U base unit.
DISTRESS
SQL
PWR
VOL
ESC
WX
IC
CALL
MENU
SCAN3 CH16/9
RS25
Key Function
VOL PWR Volume and Power. Turn clockwise to power on. Continue to turn until a comfortable
volume is reached. VOL/PWR will also adjust the settings of an external speaker, if
connected.
SQL Squelch or Threshold Level. Sets the threshold level for the minimum receiver signal.
Turn fully counterclockwise until random noise is heard, then turn slowly clockwise
until the random noise disappears. Make another 1/4 turn clockwise for best recep-
tion in open sea conditions.