Installation Instructions

Page 21
midlandusa.com
Model MXT400
Narrow Band (NB) Function
GMRS radios may operate in wide band mode, maximum 20 kHz occupied
bandwidth. FRS radios are limited to narrow band mode, maximum 12.5
kHz occupied bandwidth, by FCC regulations.
For best clarity, all radios communicating together should use the same
bandwidth. Midland GMRS radios use narrow band mode to provide
optimum communication and spectrum efficiency with both FRS and GMRS
radios which share the 12.5 kHz spaced FRS/GMRS channel frequencies.
For systems using wide band GMRS radios, the MXT400 channel
bandwidth can be switched to wide band mode.
To Set the Narrow Band Function
1. Press the Menu button to enter the Menu Mode.
2. Use the Call and Plvl buttons to scroll through the Menu options until
the LCD displays NB.
3. Turn the Channel knob to choose OF(F) for wide band mode or ON for
narrow band mode.
4. Press the Select button to confirm your choice.
5. Press the Scn/Mon button the exit.
Talk Around (Talk) Function
The Talk Around function allows you to directly communicate with other
radios in your group when the repeater is not activated or out of range.
The radio will use the RX/TX frequency and it’s stored Privacy Tone settings
when the Talk Around Function is enabled