Tait TM8105 User Manual - Transmit Timer

12 Basic Operation

Transmit Timer

Your radio may have a transmit timer that limits the 

amount of time you can transmit continuously. When the 

transmit timer is about to expire, the red LED flashes and 

the radio gives three beeps. You must release the PTT 

before you can transmit again.

Note: Your radio may be unable to transmit for 

a short time after the transmit timer has 

expired.

Receiving a 

Call

When there is valid activity on your radio’s currently 

selected channel or group, the radio then unmutes and 

you can hear the call.

If the incoming call contains special signalling that 

matches the signalling programmed for your radio, the 

green LED flashes and your radio may give a ringing tone.

What You 

Hear on a 

Channel

Your radio may be programmed so that you hear all 

conversations on a channel, or your user group may be 

segregated from other user groups by using special 

signalling. The special signalling is used to control the 

muting and unmuting of your radio, so that your radio is 

muted when other user groups are talking and unmuted 

for members of your user group.

There are two muting controls that operate in your radio:

■ signalling mute, and

■ squelch.

Signalling Mute

The radio’s signalling mute only allows the radio to 

unmute if the incoming call carries the tones specific to 

your user group. Your user group may use tones that are 

either audible, subaudible or both.