motorola MTP8550Ex Tetra Radio Walkie Talkie User Guide

: June 7, 2024
: Motorola

Table of Contents

motorola MTP8550Ex Tetra Radio Walkie Talkie
Signal Indicator Status
Battery Capacity Information
Selected Icons
Installing the Battery
Attaching the Antenna
Unlocking the Radio
Unlocking/Locking the Keypad
Holding Your Radio
Looking After Your Radio
Sending SDS Messages
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motorola MTP8550Ex Tetra Radio Walkie Talkie

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Available in Customer Programming Software Plus (CPS Plus) DVD.

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Signal Indicator Status

Emergency Button
Belt Clip Connector
Talkgroup/Volume Knob
Programmable Side Button
Earpiece
Push-To-Talk Button (PTT)
Soft Key
Speaker
Send Key
Bottom Microphone
Battery Latch
Charger Connector
Top Display
Customizable Label Space
Antenna
Signal Indicator
Top Microphone
Front Display
Side Connector
Menu Key
On-Off/End/Home Key
Four Way Navigation Key
Alphanumeric Keypad

Indicator

| Status| Charging
Status
---|---|---

Solid green

| In use| Fully Charged

Blinking green

| In service| 90% – 99% Charged
Solid red| Out of service|

Rapid Charge

Blinking red

| Connecting to a network
Entering DMO|

Faulty or Invalid Battery

Solid orange| Transmit Inhibit in service
Channel busy in DMO|

–

Blinking orange

| Incoming private or phone call| Battery is waiting to charge
No indication| Switched off or in Covert Mode|

–

Battery Capacity Information

Information

|

Description

---|---

|

Full (80% – 100% capacity)

|

Middle (60% – 80% capacity)

|

Low (25% – 60% capacity)

|

Very low (5% – 25% capacity)

|

Less than 5% capacity

Selected Icons

Icon

|

Description

---|---

|

In Service (TMO)

|

No Service (TMO)

|

Signal Strength

|

Direct Mode (DMO)

|

Emergency Mode

|

Scan (TMO)

|

Priority Scan (TMO)

|

Battery Level (Front/Top Display)

|

Battery Charging (Front/Top Display)

|

All Ring Muted

|

Simplex Ring Muted

|

Duplex Ring Muted

|

Migration

|

Low Audio

|

High Audio

|

Earpiece Connected

|

New Message Has Arrived

|

New Message(s)

|

Packet Data Enabled

|

Packet Data Transmitting

|

High RF Power

|

Radio Keys Locked

|

Location

|

Bluetooth No/Active Connection

Installing the Battery

Battery installing must occur only in non-hazardous areas. Remove the battery from its protective case.
Fit the customizable label (1). Insert the battery into the compartment (2). Carefully slide the battery towards the top of the radio until it clicks into place.

Attaching the Antenna

Turn the radio off before attaching the antenna. Align the bottom of the antenna and the screw-in base on the top of the radio.
Turn clockwise until snug. Do not force.

Unlocking the Radio

Your radio may be locked at power up. To unlock the radio after powering on, enter the code at the prompt using Navigation keys.
The unlock code is originally set to 0000. Your service provider may change this number before you receive your radio.

Unlocking/Locking the Keypad

To unlock/lock the keypad, press the Menu key and then the * key.

Holding Your Radio

The radio has two microphones:

A top microphone for simplex group, dispatcher, or private calls
A bottom microphone for duplex, telephone-like calls

When making duplex calls (low audio), hold your radio as you would a telephone. Speak into the bottom microphone. Listen via the earpiece. Keep the antenna at least 2.5cm from your head and body.

When making simplex calls (high audio), hold the radio in a vertical position with the top microphone 5 to 10cm away from your mouth. Speak into the top microphone. Listen via the radio internal speaker. Keep the antenna at least 2.5cm from your head and body.

Looking After Your Radio

Never leave your radio or battery in extreme temperatures (over +85 °C), for example, behind a windscreen in direct sunlight.
The radio is submersible (compliant with the IP67 standard) – but only with the battery, antenna, and dust cover or its equivalent, attached.
To clean your radio, use a moistened or antistatic cloth.
If the radio is exposed to impure liquids such as dirty water or salt water, follow the washing procedures as described in the Appendix section of the MTP8550Ex Feature User Guide.

Turning the Radio On/Off

To power the radio on/off, press and hold On/Off key.

Using the Top Display

The radio is equipped with a secondary display placed at the top.
Use it to check for key information, such as the battery level, volume level, signal strength, talkgroup name, or radio status.

Using the Radio Menu

To enter the menu, press the Menu key.
To scroll through the menu, press the Up or Down Navigation key.
To select a menu item, press Select or the Right Navigation key.
To return to the previous level, press Back or the Left Navigation key. To exit the menu, press the Home key.

Sending Status Messages

Select the target talkgroup, then press the Menu key and select Messages > Send Status. Highlight a status message and press the Send key or PTT to send it.

Sending SDS Messages

From the home screen, press the Menu key. Select Messages > New Message.
Enter your message and select Send. Select Private or Group. Enter a Private ID or choose a group.

Selecting Trunked/Direct Mode Operation

From the home screen, press Optns, then select Trunked Mode or Direct Mode.

Making TMO/DMO Group Calls

Enter TMO or DMO. From the home screen, use the Talkgroup Knob or Navigation keys to highlight the target talkgroup. Press Select (if configured). Press and hold PTT. Wait for the talk permit tone (if configured) and talk. Release PTT to listen.

Making TMO/DMO Emergency Group Calls

Enter TMO or DMO. Press and hold the Emergency button. The emergency alarm is sent automatically (if configured). Press and hold PTT. Wait for the talk permit tone (if configured) and talk. Release PTT to listen.
If using the Hot Mic feature, wait for the “Emgcy Mic On” message to appear on the display, then talk without pressing PTT.
To exit the emergency mode, press and hold the Exit soft key.

Making Simplex Private Calls

IN DMO : From the home screen, dial a number. Press and hold PTT to make the call and talk (wait for the talk permit tone if configured). Release PTT to listen. Press the End key to terminate the call.
IN TMO : From the home screen, dial a number. Press and release PTT to make the call. Wait for the called party to pick up. Once the call is connected, press and hold PTT to talk (wait for the talk permit tone if configured). Release PTT to listen. Press the End key to terminate the call.

Making Duplex Private/Phone/PABX Calls

From the home screen, dial a number. Change the call type by pressing Ctype. Press and release the Send key. The ringing sounds. The called party answers. Press the End key to terminate the call.
To answer an incoming call, press the Send key.

Pairing Your Radio with Bluetooth Devices

From the home screen, press the Menu key and select Bluetooth > Add Device. Highlight the required device and select Pair. If needed, enter a PIN code or a passkey.