User's Manual

TEKCOM Industries Limited
Page 5 of 11
Transmitting and Receiving
The PTT (Push-To-Talk) button is located on the side of the TM-882. Before transmitting, make
sure the channel is not a “receive-only” channel. To transmit a message, press and hold the PTT
button. Talk clearly into the speaker/microphone area of the radio. When finished, release the PTT
button. During a transmission, “TX” appears on the LCD. To receive a call, just release the PTT
button.
Adjusting Squelch
Squelch is used to eliminate static and background noise and allows for silent operation of the
TM-882 until a transmission is received. If the squelch is too high, only the strongest transmissions
are
heard, and when too low, intermittent static and noise are heard.
To adjust the squelch, press and hold the MONI button then press either the UP or DOWN for
CHL/SQL key until the background noise is quiet. The LCD displays the squelch setting from 00 to
08.
Channel 16
Channel 16 is the standard channel for placing a call or for an emergency broadcast. The 16
button selects Channel 16 immediately. To exit, press the 16 button again. Channel 16 is the same
frequency on both the USA and International bands.
Transmitting a Help Message on Channel 16
Press and hold the 16 key for several seconds. This starts the transmission of the emergency Help
signal. The Help code can be heard through the speaker. When in the emergency mode, “EMERG
(emergency)” appears on the LCD.
While the TM-882 is transmitting the Help message, it listens for anyone trying to respond and
interrupts transmission when a response is received.
During a Help transmission, no other transmission is possible. If a transmission is necessary, stop
the Help transmission by pressing the 16 button.
Programming the Call Channel
1. Press the CALL button. “CALL” appears on the LCD.
2. Press and hold the MONI button then press the CALL button. The display will flash. Release
all buttons.
3. Press UP or DOWN key to get the desired call channel.
4. Press and hold the MONI button then press the CALL button to store the Call Channel.
Note: The default value for CALL channel is 09.
Resetting the Radio
Provided that your radio can not work properly any longer, you can make it return to the original