Installation Instructions

Page 17
midlandusa.com
Model MXT400
UTILITY FUNCTIONS
MXT400 to suit your personal preferences. For additional operational
functions, see “MENU” MODE FUNCTIONS.
Selecting a Privacy Code
Continuous Tone Coded Squelch System (CTCSS) and Digitally Coded
Squelch (DCS) are systems that allow several users to share the same
channel without disturbing each other. When CTCSS or DCS are enabled
for a selected channel, the channel is muted to all incoming signals unless
they carry the correct CTCSS or DCS tone.
When a transmission with the correct tone is received, the mute is
removed and the voice audio can be heard. When the transmission ends
the channel is muted again. Transmissions that do not have the correct
tone are not heard.
The MXT400 has 142 Privacy Codes (38 CTCSS codes and 104 DCS
codes), which can be applied to any channel. If desired, you can select
a different Privacy Code for each channel. See CTCSS Privacy Codes
Frequency Chart and DCS Privacy Codes Chart for lists of available
Privacy Codes.
IMPORTANT! To communicate between two MXT400 radios or any GMRS
radio, both radios must be set to the same channel (see Selecting the
Active Channel) and Privacy Code selections.
To select a CTCSS Privacy Tone:
The receive and transmit privacy tones may be set independently. RCP is
used to set the receive privacy tone, which may be called the repeater
output tone for repeater channels. TCP is used to set the transmit privacy
tone, which may be called the repeater input tone for repeater channels.
1. Press the TS/DCS button to enter receive privacy tone selection
mode, RCP.
2. Turn the Channel knob to choose TSQ for RCP selection.
3. Press the Select button.
4. Turn the Channel knob to choose the desired receive CTCSS tone.