Installation Instructions

Page 10
midlandusa.com
Model MXT400
Using an External Speaker
The MXT400 provides a rear-panel jack for connection of an optional
external speaker (sold separately).
When selecting an external speaker, ensure the speaker has 8-ohm
impedance and is rated for 4.0 watts.
NOTE: When an external speaker is connected, the radio’s internal
speaker is automatically disabled.
CONTROLS AND INDICATORS
Operating Controls
1 Channel 7 Volume
2 TX Indicator 8
Data Terminal - not used
in the MXT400
3 Menu 9 Mic connector
4 Call/Lock 10 Privacy Tone
5 Power Level 11 Select
6 Power On/Off 12 Scan/Monitor