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Midland MXT115 MicroMobile™ GMRS Radio - Full User Guide

Customer Experience
Updated

Congratulations on your purchase of the MXT115 MicroMobile™ GMRS Radio. This compact and high-performing radio is designed for General Mobile Radio Service (GMRS) operation and offers reliable, long-lasting performance. Built with solid-state circuitry on a durable printed circuit board, it’s designed for years of trouble-free use.

Features

  • 15 GMRS Channels

  • 10 NOAA Weather Channels

  • 8 Repeater Channels

  • Automatic Noise Cancelling

  • IP66 Dustproof Mic

  • 142 Privacy Codes (38 CTCSS / 104 DCS)

  • Monitor Function

  • Keypad Lock

  • High/Low Power Settings

  • External Speaker Jack

  • USB-C Port

FCC Notice

The MXT115 operates on GMRS frequencies, which require a Federal Communications Commission (FCC) license to operate channels 1–7, 15–22, and repeater channels 15–22. Apply for a license at fcc.gov or call 1-888-CALL FCC.

RF Exposure

To comply with RF safety:

  • Maintain a 26.37 inch (67 cm) distance from the antenna while transmitting.

  • Transmit no more than 50% of the time.

Installing Your Radio

Preparation

  1. Confirm your vehicle uses a 12V negative ground system.

  2. Disconnect the negative battery cable before installation.

  3. Choose a safe, visible, and accessible mounting location.

  4. Avoid drilling into areas with hidden wires or systems.

Mounting the Radio

  1. Use the mounting bracket to mark screw hole positions.

  2. Secure the bracket using the supplied screws.

  3. Slide the radio into the bracket, ensuring it locks in place.

About Range

Your MXT115 is designed to give you maximum operating range under optimum conditions:

"Optimum condition" examples for maximum operating range are:

  • Over water
  • In open rural areas without obstructions
  • On flat areas where you can see the other radio user

To ensure you get maximum range:

  • Be sure to mount the antenna as high as possible on your vehicle
  • Be sure to set your radio to use High power

Installing the Antenna

  • Mount the antenna on a clean, flat, metal surface as high as possible.

  • Avoid fiberglass or vinyl-covered surfaces.

  • Route the antenna cable (19.7 ft) through an entry point like a trunk or door gap.

  • Keep it away from engine noise and electrical components.

Electrical and Rear Panel Connections

  • Use the included power cord with cigarette lighter adapter or hardwire:

    • Red wire to +12V (fuse block or battery)

    • Black wire to vehicle chassis ground

  • Connect the antenna to the ANT jack

  • Optional: connect an 8-ohm, 4W minimum external speaker

Connecting the Microphone

Plug the RJ11 mic connector into the front panel. Mount the microphone bracket on the dash or nearby surface.

Controls and Indicators

Front Panel

  1. LCD Display

  2. Volume/Power Knob

  3. Microphone Jack

  4. USB-C Charging Port

  5. Menu Button

  6. Weather Button

  7. Call/Lock Button

  8. Monitor/Scan Button

Microphone

  1. Channel Up

  2. Channel Down

  3. Noise Cancelling Button

Rear Panel

  1. ANT Jack

  2. EXT SPKR Jack

  3. 13.8V DC Cable

LCD Display Icons

  1. TX – TX/Transmitting

  2. Monitor Icon

  3. Channel – Current channel

  4. Key Lock – Keypad lock active

  5. NOAA Weather Band Icon – NOAA mode

  6. DCS – Indicates a Digitally Coded Squelch Privacy Code has been enabled for the currently selected channel

  7. RP Scan – Scanning in progress

  8. Repeater – Repeater mode active

  9. CTCSS Icon - Indicates a continuous tone coded squelch system code has been enabled for the current channel

  10. Signal Strength – RF strength bar

  11. HL Transmit Power Level Icon – Indicates the transmit power setting

  12. Receiving Icon - RX/Receiving

Operating Your Radio

Power On/Off

  • Turn volume knob clockwise to power on (startup tone plays).

  • Turn counterclockwise to power off.

Selecting Channels

  • Use the mic Channel Up/Down buttons.

  • Repeater channels are labeled with "RP" (e.g., 15RP, 16RP).

Volume Adjustment

  • Turn volume knob to adjust audio level.

Transmitting and Receiving

  • PTT (Push-To-Talk) on mic to transmit.

  • Release to listen.

  • Maintain 2–3 inches between mic and mouth for clarity.

Utility Functions

Keypad Lock

  • Hold Call/Lock button (3 seconds) to toggle lock.

  • Locked: only PTT and volume are active.

Monitor Mode

  • Hold Monitor/Scan button to check channel activity.

  • Use this mode to adjust volume when not receiving signals.

Auto Channel Scan

  • Press Monitor/Scan button to enter scan mode.

  • Pauses on active channels; press PTT to talk.

  • Press Monitor/Scan again to exit.

NOAA Weather Radio

Weather Scan

  • Press Weather button to scan 10 NOAA channels.

  • Locks onto strongest channel.

  • Use Channel Up/Down to rescan.

  • Press Monitor/Scan to stop scan and lock a channel.

  • Press PTT to exit.

Manual Weather Channel Selection

  • Enter Weather Mode → press Monitor/Scan to stop scanning.

  • Use mic to choose a specific channel.

Enable Weather Alert

  • While in Weather Mode, press Monitor/Scan to stop scan.

  • Select a channel → Hold Weather button to activate alert (flashing weather icon).

  • To return to GMRS mode, press PTT.

Menu Mode Functions

Access via the Menu button. Confirm selections using Monitor/Scan.

Menu Options

  • Pt – Privacy Code

  • tC / rC – TX/RX Privacy on Repeater Channels

  • Pr – Transmit Power (Hi/Lo)

  • Sq – Squelch Sensitivity (0–9)

  • rb – Roger Beep (On/Off)

  • CA – Call Alert Tone (1–5)

  • bP – Silent Mode (mute tones)

  • rP – Enable Repeater Channels

  • db – LCD Background Color (1–8)

Selecting a Privacy Code

  • Pt → Choose CTCSS or DCS → select code

  • Press Monitor/Scan to confirm

  • Note: DCS 100–104 display as A0–A4

Adjusting Power Level

  • Pr → Select Hi or Lo

  • Channels 1–7 are limited to Lo power only

Squelch Sensitivity

  • Sq → 00 is most sensitive; 09 is least

Special Features

Roger Beep

  • Adds a beep after transmissions

  • Menu → rb → On/Off

Call Alert

  • Menu → CA → Select tone 01–05 (plays sample)

Silent Operation

  • Mutes keypad beeps

  • Menu → bP → On/Off

Repeater Mode

  • Menu → rP → On/Off

  • Enables channels 15RP–22RP

LCD Background Color

  • Menu → db → Choose from 8 colors

Restoring Default Settings

  1. Turn off the radio.

  2. Hold PTT + Weather button, then turn the radio on.

  3. All settings reset to factory defaults.

Care and Maintenance

  • Clean with water-dampened cloth only.

  • Avoid alcohol, solvents, and submersion.

Troubleshooting Guide

Issue Solution
No power Check battery, cable connections
No reception Verify channels/privacy codes match, check range
Keys not responding Make sure keypad lock is off
Dim display Adjust backlight color

Specifications

  • Channels: 15 GMRS, 10 NOAA, 8 Repeater

  • Privacy Codes: 38 CTCSS, 104 DCS

  • Frequencies: UHF 462.5500–462.725 MHz

  • Repeater TX: 467.5500–467.725 MHz

  • Power Source: 13.8 VDC Nominal

Limited Warranty (U.S. Only)

  • Three-year warranty from date of purchase on radios.

  • 90-day warranty on accessories.

  • Does not cover misuse, water damage, or unauthorized repair.

  • Submit warranty claims in the Midland Returns and Claims Portal

Download the full owner's manual here.

 

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