Any reference in this manual to controls that are
“preprogrammed” means that a qualified radio technician must
use your radio’s programming software to assign a feature to a
control.
Your dealer can program the programmable buttons as
shortcuts to radio functions or preset channels/groups
depending on the duration of a button press:
• Press – Pressing and releasing rapidly.
• Long press – Pressing and holding for the preprogrammed
duration (between 0.25 seconds and 3.75 seconds).
• Hold down – Keeping the button pressed.
Bluetooth – Clear All Bluetooth Pairing – Allows you to clear
all pairing information for Bluetooth. This is accessed by a long
press of the Bluetooth On/Off Button.
Call Response – Allows you to answer a private call.
Channel Up and Down – Toggles the channel up and down.
Emergency – Depending on the programming, initiates or
cancels an emergency alarm or call.
Internet Protocol – Displays the Internet Protocol (IP) address,
device name and status of your radio.
Man Down Clear – Clears the alarm of Man Down mode which
was triggered when your radio achieves or passes a tilt angle
threshold or a combination of the angle threshold and a motion
sensitivity level.
Assignable Radio Functions
Bluetooth On/Off – Allows you to turn on/off the Bluetooth.
Bluetooth Audio Reroute – Allows you to toggle the audio
route from your radio to Remote Speaker Microphone or
Bluetooth headset.
Bluetooth Headset PTT – Keys up your Bluetooth Headset's
microphone. For APX3000, this feature can be configured to
key up Bluetooth Headset’s microphone, or GCAI’s accessory’s
Identifying Radio Controls
microphone when Bluetooth Headset’s microphone is not
available.
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Mode Change – Toggles to selected channel or zone
preprogrammed to your radio.
Mode Select – Long-press programs a button with your radio's
current zone and channels; then once programmed, the short
press of that button jumps your radio to the programmed zone
and channel.
Monitor (Conventional Only) – Monitors a selected channel
for all radio traffic until function is disabled.
Nuisance Delete – Temporarily removes an unwanted channel,
except for priority channels or the designated transmit channel,
from the scan list.
One Touch 1 – Launches a specific feature with one single
button-press.
Rekey Request – Notifies the dispatcher you require a new
encryption key.
Voice Announcement – Audibly indicates the current feature
mode, Zone or Channel you has just assigned.
Identifying Radio Controls
Voice Mute – Toggles voice mute on or off.
Reprogram Request (Trunking Only) – Notifies the dispatcher
you want a new dynamic regrouping assignment.
Scan – Toggles scan on or off.
Secure Transmission Select (Conventional and Trunking) –
Toggles the Secure Transmission On or Off when the Secure/
Clear Strapping fields is set to “Select” for your radio’s current
channel, and when your radio is model/option capable.
Talkaround/Direct (Conventional Only) – Toggles between
using a repeater and communicating directly with another radio.
Tx Inhibit – Inhibits transmission.
User – Automatically registers with the server.
Volume Up and Down – Toggles volume level up and down.
Zone Up and Down – Toggles zone up and down.
Assignable Settings or Utility Functions
Light/Flip – Press the button to toggle the display backlight on
or off.
Controls Lock – Locks or unlocks the programmable buttons.
Accessing the Preprogrammed Functions
You can access various radio functions through a short or long
press of the relevant programmable buttons.
Multi-Functional Button (MFB)
This button control enables you to select the features which the
Up and Down Arrow Button can adjust. All the programmable
buttons can be preprogrammed as MFB.
The features available for MFB are:
Volume Change – To enable the Up or Down Arrow Button to
change the volume of your speaker or headset. Press the Up or
Down Arrow Button to increase or decrease the volume level of
your headset. Long press the Arrow Button makes coarse
tuning of the volume level; short press the Arrow Button makes
fine tuning of the volume level.
Mode Change – To enable the Up or Down Arrow Button to
change the channel or zone. Press the Up or Down Arrow
Button to toggle the channel or zone up or down.
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Your radio by default is set to use the primary feature. Short
U
V
presses of MFB toggle to either the secondary or primary
feature.
The secondary feature has an inactivity timer. This timer starts
when the secondary feature is left idle. Your radio returns to
primary feature when this timer expires.
Consult your dealer or system administrator for the best option
available for MFB.
Identifying Status Indicators
Your radio indicates its operational status through the following:
The PTT button can be preprogrammed on your radio’s or
RCU’s programmable button. The programmable PTT feature
and the PTT button on the Pod serves two basic purposes:
• While a call is in progress, the PTT button allows your radio to
transmit to other radios in the call.
Press and hold down PTT button to talk. Release the PTT
button to listen.
The microphone is activated when the PTT button is pressed.
• While a call is not in progress, the PTT button is used to make
a new call. See Monitoring Features†‡ on page 34 for more
information.
Identifying Status Indicators
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Status Icons‡
The 112 x 32 pixel monochrome display screen of your DRSM
shows your radio status and operating conditions.
Battery
For IMPRES™ battery operation only – the icon
shown indicates the charge remaining in the
battery.
For all battery operation – the icon blinks when
the battery is low.
Received Signal Strength Indicator (RSSI)
The number of bars displayed represents the
received signal strength for the current site, for
trunking only. The more stripes in the icon, the
stronger the signal.
Roaming
N
M
H or L
J
j
I
G
b
a
The radio has roamed to and is currently
registered to a foreign system.
Direct
• On = Radio is currently configured for direct
radio to radio communication (during
conventional operation only).
• Off = Radio is connected with other radios
through a repeater.
Monitor (Carrier Squelch)
Selected channel is being monitored (during
conventional operation only).
Power Level
• L = Radio is set at Low power.
• H = Radio is set at High power.
Scan
Radio is scanning.
Priority Channel Scan
• Blinking dot = Radio detects activity on
channel designated as PriorityOne.
• Steady dot = Radio detects activity on channel
designated as Priority-Two.
Vote Scan Enabled
The vote scan feature is enabled.
Secure Operation
• On = Secure operation.
• Off = Clear operation.
• Blinking = Receiving an encrypted voice call.
Bluetooth On
Bluetooth is on and ready for Bluetooth
connection.
Bluetooth Connected
Bluetooth is currently connected to the external
bluetooth device.
Identifying Status Indicators
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LED Indicator
Transmit/
Receive LED
Bluetooth
LED
The LED indicator shows the operational status of your radio.
Transmit/Receive LEDBluetooth LEDStatus
Solid red–Radio is transmitting.
Solid redSolid greenRadio is upgrading the firmware.
Blinking red–Radio is powering up with fatal error.
Slow blinking red–Radio is transmitting at low battery condition.
Blinking redBlinking blueRadio is powering up with update in progress.
Rapid blinking red –Radio has failed the self test upon powering up or encountered a fatal error.
Solid yellow–Channel is busy. (Conventional only.)
Rapid blinking yellow–Radio is receiving a secured transmission.
Solid green–
Solid green for three
Identifying Status Indicators
seconds
–Radio power up is successful.
Radio is powering up.
Radio is locked.
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Transmit/Receive LEDBluetooth LEDStatus
Solid green
–
–Slow Blinking blueRadio is waiting to be paired when no device is connected with radio in Bluetooth.
–
–
–Blinking blueRadio is clearing Bluetooth pairing information.
–
–Solid blueRadio is powering up with Option Board error.
Note:No LED indication occurs when your radio receives a clear (non-secured) transmission in trunking Mode.
Short blinking blue
with long interval
Blinking blue three
times
Blinking blue at
heartbeat pace
Solid blue for two
seconds
Rapid blinking blue
for two seconds
Radio is reading or upgrading by CPS.
Bluetooth is powering on or off.
Radio is connected with at least a device in Bluetooth link.
Bluetooth device is connected.
Bluetooth device is disconnected.
Radio fails to connect or disconnect from a device.
Identifying Status Indicators
LED Indicators in Surveillance Mode†
For covert operation, the LED can be preprogrammed to be
turned off at specific zone or channel. During operation in these
zone or channel the LED blinking is not seen, instead Voice
Announcement can be used to hear and confirm the operation
status.
Hence, It is recommended to duplicate the channel
programming into a separate zone and have the associated
Voice Announcement tied to zone to help indicate the LED on/
off state, for example “Light Off” “Zone 1”. Using zone control in
this case eases going into and out of the zone or channel
preprogrammed with the LED on/off setting.
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Intelligent Lighting Indicators‡
This feature temporary changes the backlight of the DRSM display screen to indicate a radio event has occurred.
Note:This feature must be preprogrammed by a qualified radio technician.
BacklightNotificationWhen
OrangeEmergency Alerts
RedCritical Alerts
GreenCall Alerts
Your radio initiates an emergency alarm or call.
Your radio receives an emergency alarm or call.
Your radio battery is low.
Your radio is out of range.
Your radio enters failsoft mode.
Your radio is unable to establish a full connection with the system.
Your radio is unable to authenticate or register with the system.
Your radio receives a private call.
Your radio receives a phone call.
Your radio receives a call alert.
Your radio receives a selective call.
Identifying Status Indicators
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English
Alert Tones†
An alert tone is a sound or group of sounds. Your radio uses alert tones to inform you of your radio’s condition. The following table lists
these tones and when they occur. You can hear them using the Mission Critical Wireless Bluetooth headset or GCAI DRSM.
You HearTone Na meHeard
Radio Self Test FailWhen radio fails its power-up self test.
Short,
Low-Pitched
Tone
Long,
Low-Pitched
Tone
A Group of
Low-Pitched
Ton es
Time-Out Timer WarningFour seconds before time out.
Talk Prohibit/PTT InhibitWhen PTT button is pressed, transmissions are not allowed.
RejectWhen an unauthorized request is made.
No ACK ReceivedWhen radio fails to receive an acknowledgment.
Man Down EntryWhen radio initiates Man Down mode.
Time-Out Timer
Timed Out
Out of RangeWhen PTT button is pressed, radio is out of range of the system.
Invalid ModeWhen radio is on an unpreprogrammed channel.
BusyWhen the system is busy.
After time out.
Identifying Status Indicators
English
25
You HearTone Na meHeard
Short,
Medium-Pitched
Tone
Long,
Medium-Pitched
Tone
A Group of
Medium-Pitched
Ton es
Identifying Status Indicators
Valid Key-PressWhen a valid key is pressed.
Radio Self Test PassWhen radio passes its power-up self test.
Clear VoiceAt beginning of a non-coded communication.
Priority Channel
Received
Emergency Alarm/Call
Entry
Central EchoWhen central controller has received a request from a radio.
Volume SetWhen volume is changed on a quiet channel.
Emergency ExitWhen exiting the emergency state.
FailsoftWhen the trunking system fails.
Automatic Call BackWhen voice channel is available from previous request.
KeyfailWhen encryption key has been lost.
Console AcknowledgeWhen emergency alarm, or reprogram request ACK is received.
Received Individual CallWhen Call Alert or Private Call is received.
Site TrunkingWhen a SmartZone trunking system fails.
When activity on a priority channel is received.
When entering the emergency state.
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English
You HearTone Na meHeard
Short,
High-Pitched
Tone (Ch ir p )
RingingPhone Call ReceivedWhen a land-to-mobile phone call is received.
Gurgle
Incremental-
Pitched Tone
DecrementalPitched Tone
A Group of Very
High-Pitched
Ton es
Doh-Sol
Sol-Doh
Low-Battery ChirpWhen battery is below preset threshold value.
Dynamic Regrouping(When the PTT button is pressed) a dynamic ID has been received.
Talk Permit(When PTT button is pressed) verifying system accepting transmissions.
Bluetooth PairedWhen Bluetooth accessory is paired with your radio.
Bluetooth ConnectedWhen Bluetooth accessory is connected to your radio.
Bluetooth UnpairedWhen Bluetooth accessory is unpaired from your radio.
Bluetooth DisconnectedWhen Bluetooth accessory is disconnected from your radio.
Man Down Continuous
Tone
MFB Enters Secondary
Feature
MFB Exits Secondary
Feature
When radio is in Man Down mode and prepares to transmit Emergency Alarm
when the timer of this alarm ends.
When MFK is toggled to secondary feature.
When MFK is toggled to exit secondary feature and return to primary feature, or
when secondary function timer expires.
Identifying Status Indicators
English
27
General Radio Operation
Once you understand how your APX Portable is configured, you
are ready to use your radio.
Use this navigation guide to familiarize yourself with the basic
Call features:
Note:Your radio must be preprogrammed to allow you to use
this feature.
Procedure:
1 If Selecting a Zone is the secondary function of the Up and
Down Arrow Buttons, short press the MFB to toggle to
Selecting a Zone mode. You hear the Secondary Mode tone
and associated Voice Announcement if configured.
OR
If Zone Up or Down feature is pre-programmed on a
programmable button, skip to step 2.
OR
If Selecting a Zone is the primary function of Up and Down
Arrow Buttons, skip to step 2.
2 Press the Up and Down Arrow Buttons, or the
preprogrammed Zone Up or Zone Down buttons to toggle
the zone list backward or forward. If configured, you can
hear Voice Announcement of the selected zone.
3 Press the PTT button to transmit on the selected zone
channel.
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See Voice Announcement†on page 62 to understand how the
Voice Announcement works.
Selecting a Radio Channel†
A channel is a group of radio characteristics, such as transmit/
receive frequency pairs.
Use the following procedure to select a channel.
Note:The radio must be preprogrammed to allow you to use
this feature. If you select a channel that is not within the
preprogrammed band, your radio indicates that it is on
an unsupported frequency with an audio warning.
Procedure:
1 If Selecting a Channel is the secondary function of the Up
and Down Arrow Buttons, short press the MFB to toggle to
selecting channel mode.You hear the Secondary Mode Tone
and associated Voice Announcement if configured.
OR
If Channel Up or Down feature is pre-programmed on a
programmable button, skip to step 2.
OR
If Selecting a Channel is the primary function of Up and
Down Arrow Buttons, skip to step 2.
2 Press the Up and Down Arrow Buttons or pre-programmed
Channel up or down button to toggle the channel list
backward or forward. If configured, you hear Voice
Announcement of the selected channel.
3 Press the PTT button to transmit on the selected channel.
See Voice Announcement†on page 62to understand how the
Voice Announcement works.
General Radio Operation
English
29
Using Mode Select Feature
Mode Select allows a long press to save your radio’s current
zone and channel to a programmable button. Once it saved, a
short-press of the button jumps the transmission to the saved
zone and channel.
Saving a Zone and Channel to a Mode Select
Button†
This feature allows to save two different zones or channels to a
preprogrammed button.
Procedure:
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English
To save the selected zone and channel, press the
preprogrammed button.
Note:Your radio must be preprogrammed to allow you to use
this feature.
General Radio Operation
1 Toggle your zone and channel to the required zone and
channel.
2 Press the preprogrammed button to save the zone or
channel.
3 You hear a short, medium-pitched tone when the zone and
channel is saved.
Note:To change the programmed zone and channel, repeat
this procedure.
Receiving and Responding to a Radio Call
Transmit/
Receive LED
Bluetooth
LED
Receiving and Responding to a Call‡
Once you have selected the required channel and/or zone, you
can proceed to receive and respond to calls.
The Transmitting or Receiving LED lights up solid red when
your radio is transmitting. In conventional mode, this LED lights
up solid yellow when your radio is receiving a transmission. In
trunking mode, there is no LED indication when your radio
receives a transmission.
If your radio is receiving a secure transmission, this LED blinks
yellow.
Procedure:
When you receive a call, depending on how your radio is
preprogrammed:
1 ASTRO Conventional Only:
The LED lights up solid yellow.
OR
Trunking Only:
The display shows the caller alias or ID.
2 Press the PTT button to respond to the call. The LED lights
up solid red.
3 Release the PTT button to listen.
See Making a Radio Call† on page 33 for details on making a
Talkgroup Call.
General Radio Operation
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Receiving and Responding to a Private Call
(Trunking Only)†‡
A Private Call is a call from an individual radio to another
individual radio.
These one-to-one calls between two radios are not heard by
others in the current talkgroup. The calling radio automatically
verifies that the receiving radio is active on the system and can
display the caller’s ID.
Note:Your radio automatically exits the feature, if the feature
inactivity timer is enabled and when your radio is left
idle and the timer expires. You hear the Inactive Exit
Tone upon feature exit.
You cannot initiate a Private Call.
Receiving and Responding to a Telephone Call
(Trunking Only)†‡
This feature allows you to receive calls similar to standard
phone calls from a landline phone.
Note:Your radio automatically exits the feature, if the feature
inactivity timer is enabled and when your radio is left
idle and the timer expires. You will hear the Inactive
Exit Tone upon feature exit.
Procedure:
When you receive a Telephone Call:
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Procedure:
When you receive a Private Call:
1 You hear two alert tones and the LED blinks green. The
backlight of the screen turns green and the display shows
CALL RCV, alternating with the caller alias (name) or ID
(number).
2 Press the Call Response button within 20 seconds after the
call indicators begin.
3 Press and hold the PTT button to talk. Release the PTT
General Radio Operation
button to listen.
4 Press the Call Response button to hang up.
1 You hear a telephone-type ringing and the LED blinks green.
The backlight of the screen turns green and the display
shows PHN CALL.
2 Press the Call Response button within 20 seconds after the
call indicators begin.
3 Press and hold the PTT button to talk. Release the PTT
button to listen.
4 Press the Call Response button to hang up.
You cannot initiate a Telephone Call.
Making a Radio Call†
Repeater or Direct Operation
Procedure:
1 Select a zone or channel by:
Press the preprogrammed Zone or Channel Up Down
Button.
OR
Press the Up or Down Arrow Button via toggling the MFB.
2 You hear Voice Announcement of the selected zone or
channel if it is enabled.
The REPEATER operation increases your radio’s range by
connecting with other radios through a repeater. The transmit
and receive frequencies are different.
The DIRECT or “talkaround operation” allows your radio to
bypass the repeater and connect directly to another radio. The
transmit and receive frequencies are the same.
Procedure:
Press the preprogrammed Repeater/Direct button to toggle
between talkaround and repeater modes.
General Radio Operation
English
33
Monitoring Features†‡
Radio users who switch from analog to digital radios often
assume that the lack of static on a digital channel is an
indication that your radio is not working properly. This is not the
case. Digital technology quiets the transmission by removing
the “noise” from the signal and allowing only the clear voice or
data information to be heard.
Use the Monitor feature to make sure a channel is clear before
transmitting.
Monitoring a Channel
Procedure:
1 Press the preprogrammed Monitor button to toggle
Monitoring on.
2 Press and hold the PTT button to transmit. The LED lights
up solid red.
3 Release the PTT button to receive (listen).
The Carrier Squelch indicator appears on the display when you
monitor a channel via the preprogrammed Monitor button.
General Radio Operation
Conventional Mode Operation
Your radio may be preprogrammed to receive Private-Line
(PL) calls.
Procedure:
®
1 Momentarily press the Monitor button to listen for activity.
The Carrier Squelch indicator appears on the display.
2 Press and hold the Monitor button to set continuous
monitor operation. The duration of the button press is
programmable.
3 Press the Monitor button again, or the PTT button, to return
to the original squelch setting.
If you try to transmit on a receive-only channel, you hear an
invalid tone until you release the PTT button.
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Advanced Features
Use this navigation guide to learn more about advanced
features available with your radio:
This feature allows you to receive a call from or to call a specific
individual. It is intended to provide privacy and to eliminate the
annoyance of having to listen to conversations that are of no
interest to you.
Procedure:
1 When you receive a Selective Call, you hear two alert tones
and the LED lights up solid yellow. The backlight of the
screen turns green momentarily and the display briefly
shows CALL RCV.
2 The speaker unmutes.
3 Press and hold the PTT button to talk. Release the PTT
button to listen.
You cannot initiate a Selective Call.
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