User's Guide
Table Of Contents
- Contents
- List of Figures
- List of Tables
- Legal and Support
- Radio Care
- Radio Overview
- Getting Started
- Home Screen Overview
- General Radio Operation
- 5.1 Selecting Zones
- 5.2 Selecting Channels
- 5.3 Mode Select Feature
- 5.4 Selecting the Power Level
- 5.5 Selecting a Radio Profile
- 5.6 Enabling and Disabling the Radio Alias
- 5.7 Adjusting the Display Backlight
- 5.8 Editing the Time and Date
- 5.9 Locking and Unlocking the Controls
- 5.10 Setting the Tones for Controls and Buttons
- 5.11 Setting the Voice Mute
- 5.12 Using the Time-Out Timer
- 5.13 Adjusting the Squelch Level
- 5.14 Conventional Squelch Operation
- 5.15 Using the PL Disable Feature
- 5.16 Digital PTT ID Support
- 5.17 General Radio Information
- Trunking System Controls
- Types of Radio Calls
- Emergency Operation
- Fireground
- Tactical Public Safety (Conventional Only)
- Man Down (Fall Alert)
- Secure Operations
- Scan
- Scan Lists
- Connectivity
- Location
- Mission Critical Geofence (ASTRO 25 Trunking)
- Contacts
- Recent Calls
- Sending Status
- Call Alert Paging
- Automatic Registration Service
- User Login Feature
- Text Messaging Service
- Monitor Feature
- Remote Monitor
- Transmit Inhibit
- Dynamic Regrouping (Trunking Only)
- Dynamic Zone Programming
- Zone-to-Zone Cloning
- Radio Kill
- Radio Inhibit
- Voice Announcement
- Site Selectable Alerts
- Additional Performance Enhancement
Chapter 25
Monitor Feature
The monitor feature ensures that a channel is clear before transmitting.
The lack of static on a digital channel when the users switch from analog to digital radios is not an
indication that the radio is malfunctioning. Digital technology quiets the transmission by removing the
noise from the signal and allows only the clear voice or data information to be heard.
25.1
Monitoring Channels
Procedure:
Depending on your preference and programmed functions, monitor channels by using one of the
following options.
Option Actions
Monitoring channels using the
Monitor button
a Press the programmed Monitor button.
b If necessary, adjust the Volume Control knob.
c To transmit, press and hold the PTT button.
d To listen, release the PTT button.
The Carrier Squelch indicator appears on the dis-
play when you monitor a channel using the pro-
grammed Monitor button.
Monitoring channels using the se-
lected zone channel
a Select the desired zone and channel.
b Listen for a transmission.
c If necessary, adjust the Volume Control knob.
d To transmit, press and hold the PTT button.
e To listen, release the PTT button.
25.2
Monitoring Conventional Mode
This feature allows you to monitor channel traffic on conventional channels by defeating the coded
squelch. This way, you can listen to another active user on the channel and you do not take over the
conversation of another user.
Prerequisites: Ensure that your radio is programmed to receive Private-Line
®
(PL) calls.
Procedure:
1 Press the Monitor button to listen for activity.
The Carrier Squelch indicator appears on the display.
2 Set continuous monitor operation by pressing and holding the Monitor button.
The duration of the button press is programmable.
MN009363A01-AA
Monitor Feature
85