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MC-V12 RF/RoIP Two-Way Radio — TX-Locked or TX-Enabled Configuration

The MC-V12 is a software-defined radio and network communications platform available in two configurations: Locked and Unlocked. Both configurations support receive-side radio monitoring, local dashboard viewing, recording, event history, device status, and IP-based communication features. The MC-V12 TX-Locked configuration is supplied for receive-only RF operation with IP-based communication features. Customers are responsible for using the product in accordance with applicable requirements.

The MC-V12 is designed to receive compatible radio signals and move system data through Ethernet, Wi-Fi, or other configured IP network connections. IP network functions may include dashboard access, remote monitoring, recording transfer, alerts, Push-to-Talk voice over IP, Push-to-Video over IP, messaging, and system administration.

Available Configurations

MC-V12 Locked Configuration

The Locked configuration is supplied with radio-frequency transmit functions disabled.

In this configuration, the MC-V12 can receive compatible radio signals, display activity, record audio, show device status, and send data over Ethernet, Wi-Fi, or internet-connected IP networks.

PTT and PTV functions remain available in the Locked configuration, but they operate through ROIP and IP networking only. They do not transmit through DMR, RF push-to-talk, repeater channels, or monitored radio channels.

Locked configuration features include:

  • Receive-only RF operation

  • No DMR RF transmission

  • No RF push-to-talk transmission

  • No RF repeater operation

  • ROIP Push-to-Talk over IP

  • Push-to-Video over IP

  • Messaging and file transfer over IP

  • Live audio monitoring

  • Recording and playback

  • Event timeline

  • Local operations grid

  • Receiver status display

  • Ethernet and Wi-Fi network connectivity

  • Web-based dashboard access

MC-V12 Unlocked Configuration

The Unlocked configuration enables supported outbound RF communication features when properly configured and used in accordance with applicable laws, licensing requirements, frequency authorizations, and operating rules.

In this configuration, the MC-V12 may support RF transmit functions in addition to the IP-based communication functions available in the Locked version. Available transmit modes, frequency ranges, power levels, antennas, and operating features depend on the purchased configuration and approved setup.

Unlocked configuration features may include:

  • Supported RF transmit operation

  • RF push-to-talk where authorized

  • RF data communication where authorized

  • Receive-side radio monitoring

  • Recording and playback

  • Local operations grid

  • Direct device-to-device RF communication

  • Peer-to-peer voice, video, text, image, and data exchange

  • Mesh networking between MC-V12 units

  • Repeater-assisted mesh operation

  • Base-station coordination

  • Multi-node routing

  • Field-deployable local network operation

  • Directional antenna integration

  • Configurable modulation and bandwidth settings

  • Adaptive RF configuration based on operating conditions

  • AES 256 encrypted communication paths where configured

  • User-managed key provisioning where configured

  • RoIP bridge operation between RF and IP-connected users


Important RF and Network Clarification

“Locked” and “Unlocked” refer to the MC-V12 radio-frequency operating configuration.

The Locked configuration does not transmit over DMR or monitored RF channels. However, it can still send and receive ordinary digital data over Ethernet, Wi-Fi, private networks, VPN connections, or internet service.


The Unlocked configuration may include RF transmit capability, but only for supported and authorized operating conditions. Users are responsible for complying with all applicable radio, privacy, recording, and network-use requirements.

Package Contents

  • MC-V12 unit or units, depending on selected package

  • Power adapter

  • Standard antenna or antennas, depending on selected package

  • Dashboard software

  • Setup documentation

Network service, internet access, external displays, computers, site installation, and optional accessories are not included unless specifically listed in the selected package.

Product Details

  • Product: MC-V12 RX/ROIP Transceiver Platform

  • Configurations: Locked or Unlocked

  • Locked mode: RF receive-only with ROIP/IP communication

  • Unlocked mode: RF transmit functions available only as configured and authorized

  • Network interfaces: Ethernet and Wi-Fi

  • Dashboard access: Web-based interface on a configured network

  • Warranty: One-year limited warranty against defects in materials and workmanship

MC-V12 Transceiver Specification

Nominal / Target Value

Receiver Architecture

Software Radio

ADC Resolution

12-bit nominal SDR receive path

ADC Sample Rate

Up to 61.44 MS/s, configuration-dependent

Instantaneous Bandwidth

Up to 40 MHz usable bandwidth, configuration-dependent

I/Q Sample Format

Complex I/Q stream with 12-bit ADC and host-side 16-bit I/Q handling where supported

RF Receive Coverage

Approximately 70 MHz to 6 GHz, depending on the selected SDR module and RF front end

Primary Receive Bands

137–138 MHz; 161–163 MHz; 902–928 MHz; 978 MHz; 1090 MHz; 1575.42 MHz; 1694.1 MHz; and selected L-band weather ranges

Tuning Resolution

Software-defined, with a 1 Hz tuning-step target where supported by the selected hardware

Frequency Reference

Internal oscillator standard; external reference optional by configuration

Frequency Stability

±0.5 ppm target with an upgraded reference; module-dependent

Gain Control

Software-adjustable RF, IF, and baseband gain where supported

RF Filtering

Band-specific RF filtering available by configuration

Low-Noise Amplification

Optional external or integrated low-noise amplifier depending on the receive band

Antenna Inputs

One standard RF input; additional RF inputs optional by configuration

Antenna Connector

SMA or SMA-compatible RF connector target; final connector depends on the selected SDR module and RF front end

Supported Receive Modes

AM, FM, NFM, WFM, digital signal reception, decoder workflows, and custom SDR processing as configured

RF Transmit Capability

RF transmission disabled in the TX-locked configuration


Configuration Notice

All specifications are nominal or target values. Final frequency coverage, bandwidth, sample rate, ADC implementation, filtering, gain range, frequency stability, antenna connections, and supported receive modes depend on the selected SDR module and RF front-end configuration.


Local Access Program:  A limited number of approved local partners and early evaluators may qualify for a sponsored MC-V12 local access price of $39.95. The remaining product cost is covered by James E Smith LLC through an internal access fund supported by a portion of standard MC-V12 sales and company resources. Availability is limited and subject to approval, configuration, and responsible-use requirements.

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