Tait TEL0054, TEL0055 User Guide

T2000
ON/OFF - Volume knob
Microphone socket
II
Call key
Monitor key
T2020II User’s Guide
PTT key
Transmit indicator
Scrolling available indicator
Display window
Keypad
Status key
Channel key
Enter key
Function key
Alphanumeric key
T2020II
FCC RF Exposure Limits
Additional Safety Warnings
Safety Training Information
This product generates radio frequency energy during transmissions. This device must be restricted to work-related use in an occupational/controlled exposure environment. The radio operator must have control of the exposure conditions and duration of all persons exposed to the antenna of this transmitter to satisfy FCC RF exposure compliance. This device is not approved for general population use.
It must only be used with authorized accesso-
ries and antennas.
The operator must ensure that the minimum safe
distance of 0.9m (35 inches) between persons and the antenna is not exceeded during transmissions.
Do not exceed a duty cycle ratio of 50% transmit
mode to stand-by or receive modes. The radio is in transmit mode when the PTT key on the microphone is pressed and the TX indicator shows in the display window.
DANGER: SWITCH THE RADIO OFF
AT PETROL FILLING STATIONS
DANGER: SWITCH THE RADIO OFF
IN THE VICINITY OF EXPLOSIVE DEVICES (such as in a quarry that uses blasting techniques)
Use of a handheld microphone or a
radio while driving could contravene the legislation that applies in your country or state. Please check the vehicle regulations of your own country.
Introduction
Switching On
Selecting a Channel
To Change Channels
Selecting a Group
Getting Started
Your T2020II is controlled by a microprocessor which allows it to be configured to suit the needs of your particular fleet.
This User’s guide provides only a brief description of the basic features of your radio. For information about the advanced features which may also be provided, a comprehensive operators’ manual is available from your Tait dealer.
To switch the radio on, turn the ON/OFF- Volume knob clockwise about one-third of a turn. You may need to finally adjust the volume when you receive your first call.
When first switched on, the radio resumes operation on the same channel as when it was last switched off.
To check for activity on a channel, select channel mode by pressing the Channel (Ch) key.
Use the scroll keys ( and ) to move
through the list of available channels, or
Use the keypad to enter a new channel number, or
Use the keypad to enter an alphanumeric label ( ).
A group is simply a collection of channels grouped together for scanning or voting. You select a group in the same way as selecting a channel.
Making a Call
Sending a This section explains how to make a call using Call your T2020II.
1 Select the appropriate channel for the party you
wish to contact (see Selecting a Channel).
2 Check that the channel is free of traffic by
observing the BUSY indicator - if it is illuminated the channel is already in use and you must wait. If your radio is preprogrammed for ‘off-hook monitoring you will hear any other traffic when you lift the microphone from its clip.
3 Hold the microphone about 5cm from your
mouth and press the PTT key. Pause briefly to ensure your first word is not cut off, then speak clearly, identifying yourself and the person you wish to contact by your call signs (for example Mobile-9 to Base). Release the PTT key when you have finished talking.
4 When you receive a reply, proceed with your
conversation as described below.
Using the The PTT key on the side of the microphone Microphone switches the radio between transmit and receive and PTT key modes. Each time the radio transmits, the TX
indicator appears in the display. To speak, press the PTT key and then release it
to listen to the reply.
Transmit The radio is fitted with a preprogrammed timer to Timer limit the maximum length of transmissions. When
this time limit is reached, a three tone warning is sounded and transmission stops. You must release the PTT key before proceeding.
Receiving a Call
To be able to receive calls on a single channel, simply check that the radio has the appropriate channel selected (see Selecting a Channel).
To be able to receive calls on several channels, see Scanning”.
Responding Your radio remains muted until there is activity on to Calls the channel. Listen for your own call sign, and
Monitor Your T2020II is fitted with muting facilities which
CTCSS/
squelch
respond promptly when you hear it by pressing the PTT key and identifying yourself (for example Mobile-9 Receiving).
ensure you are not disturbed by calls which are not clear or are not intended for you.
The Monitor ( ) key is used to override any preprogrammed muting controls, and allows you to hear all traffic on a channel. The following table describes the use of the Monitor ( ) key.
Permits reception only if a call carries an
DCS
inaudible tone or code
mute
specific to your fleet or group.
Permits reception only if
Selcall
a call carries a special
mute
tone sequence which represents your identity number.
RF
Permits reception only if a call has a signal above a factory-set threshold. This ensures that only intelligible signals are made audible.
Function
To Defeat / Reactivate
Press the Monitor ( ) key briefly. (If hookswitch monitor­ing is preprogrammed, lifting the microphone off hook will have the same effect.) Press briefly again to reactivate.
Hold the Monitor ( ) key for more than one second. Press briefly again to reactivate.
Scanning
To have your radio monitor a number of channels for valid activity (transmissions carrying tones or codes specific to you), you can use the prepro­grammed scanning facility in your T2020II.
Scanning To set the radio scanning through a list of
Making a Call While Scanning
preprogrammed channels:
1 Ensure the microphone is in its clip (on-hook’),
2 Select a group preprogrammed as a scan
group (see Selecting a Channel), and scanning commences.
3 If the radio detects a channel with valid activity,
it pauses there and makes the traffic audible to you. When the traffic finishes, the radio resumes scanning.
To stop the radio scanning, select another channel.
While the radio is scanning, you may lift the microphone off-hook to suspend scanning and make a call.
If the radio was monitoring channel activity when you lifted the microphone off-hook, then it remains on that channel. If the radio was scanning for traffic, then it returns to its preprogrammed ‘home’ channel.
Replace the microphone on-hook to restart scanning.
Selcall Calls
Introduction If your T2020II is fitted with Selcall, you can
make calls to specific individuals or groups on particular channels. For it to operate, your radio must be fitted with the Selcall module and preprogrammed appropriately. Each channel may be preprogrammed to provide its own Selcall identity immediately available with the Call ( ) key.
Sending a To call another party using Selcall: Selcall Call 1 Select the appropriate channel for the party you
wish to contact (see Selecting a Channel);
2 Check that the channel is free of traffic by
observing the BUSY indicator;
3 Press the Call ( ) key, or
Dial the identity number using the keypad, or;
Select an alphanumeric label for the call.
4 When the person you call replies, lift the
microphone off-hook and continue with the conversation.
Receiving a When you receive a Selcall call, your radio alerts Selcall Call you with a ringing sound (similar to that of a
telephone) and the CALL indicator appears in the display.
To accept the call, lift the microphone ‘off-hook
and identify yourself in the usual manner. The ringing stops when you press the PTT key.
To reject a call, press any key other than the
PTT and the ringing will stop.
Group Calls If your radio sounds the ringing tone only once,
and the caller broadcasts their message without waiting for a reply, you have received a group call. It is not normally necessary to reply to such calls.
Selecting a Sequence
Example
Alphanumeric Entry Mode
To perform repetitive operations which require several keystrokes, your T2020II may be preprogrammed with alphanumeric labels. These labels, when recalled, can perform a series of operations such as selecting a channel and sending a call.
1 Press the Alphanumeric ( ) key to enter
the Alphanumeric Entry mode.
2 Scroll through the list of labels by using the
cursor keys ( and ) until the label is displayed, or enter the label for the required party, using the keypad.
3 Press the Enter ( ) key to initiate the call.
You want to call your base despatcher who has been assigned the label, BASE. The keystroke sequence and display might appear as follows:
Press Key
Display Reads
Explanation
Most recent selection displayed
Label not yet identified
Label not yet identified
New label identified
BASE is called and the BASE number is displayed
459-20200-03
Loading...