Motorola XPR 4300 ユーザーズマニュアル

You can adjust your radio's squelch level to filter out unwanted 
calls with low signal strength or channels that have a higher 
than normal background noise.

Settings: Normal is the default. Tight filters out (unwanted) 
calls and/or background noise. However, calls from remote 
locations may also be filtered out.

Press the preprogrammed Squelch button.

You hear a positive indicator tone, indicating the radio is 
operating in tight squelch.
OR
You hear a negative indicator tone, indicating the radio is 
operating in normal squelch.

You can customize your radio’s power setting to high or low for 
each channel.

Settings: High enables communication with radios located at a 
considerable distance from you. Low enables communication 
with radios in closer proximity.

Press the preprogrammed Power Level button.

You hear a positive indicator tone, indicating the radio is 
transmitting at low power.
OR
You hear a negative indicator tone, indicating the radio is 
transmitting at high power.

A channel can support up to 6 option board features. Refer to 
your dealer or system administrator for more information.

Procedure: 
Press the programmed Option Board Feature button to toggle 
the feature on or off.

You can enable and disable the radio’s internal public address 
(PA) system.

Procedure: 
Press the programmed PA On/Off button to toggle the feature 
on or off.

NAG_6880309T18-D.book  Page 21  Friday, April 11, 2008  12:40 PM