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The MC‑V12 is a purpose‑built, Software-Defined Handheld Radio (SDR) communications system designed for operations in remote, disconnected, or high‑risk environments where traditional Wi‑Fi, LTE or cellular infrastructure is unavailable, compromised or undesirable. Engineered for mobile field use, rugged deployment and secure, low‑detectability communications, the MC‑V12 integrates advanced directional RF hardware, mesh networking, field‑programmable protocols and robust security features, all within a compact, transportable form factor.

Key Capabilities & Features

  • Standalone Radio Operation The MC‑V12 operates without reliance on commercial or infrastructure networks (Wi‑Fi, LTE, 5G). Two or more handheld units can communicate peer‑to‑peer and/or form a dynamic mesh network with repeaters, providing voice, text and image transmission in network‑free or denied environments.

  • Narrow‑Beam, Steerable Directional Antenna Each unit features a high‑gain, narrow‑beam parabola‑style antenna that the user can physically point toward the target node. This focused beam delivers high signal quality, extends effective range in the beam path, and provides spatial isolation from unwanted receivers. Devices located off the beam path may detect only faint or no signal, enhancing stealth and reducing the risk of interception or signal leakage.

  • Mesh / Repeater Networking The MC‑V12 supports dynamic mesh mode, where handheld nodes and repeaters can extend the communication link around obstacles, corners or along linear paths (e.g., along streets or within urban terrain). This enables flexible deployment, mobile node handoff and coverage in terrain or built‑environment conditions where simple line‑of‑sight links would be inadequate.

  • Software‑Defined Radio (SDR) & Field Programmability At the heart of the unit is an SDR engine enabling the operator to adjust key radio parameters in the field: carrier frequency, modulation scheme, noise‑tolerance thresholds, and channel management. This adaptability allows operation in congested or hostile RF environments, where interference, jamming, multipath or signal detection risks may otherwise degrade performance.

  • Security & Key Management The MC‑V12 incorporates secure communications protocols including AES‑128/256 encryption and supports user‑managed key exchange (e.g., Diffie‑Hellman). Keys are not permanently stored in the device; they are provisioned at startup (via SSH or a removable thumb drive) and reside only in memory, minimizing risk of compromise. An optional standalone cryptographic module is available for on‑device key storage when necessary.

  • Rugged, Mobile Form Factor Built as a handheld unit (approximately 11″ tall × 4.5″ wide × 2.5″ thick) with reinforced (15% reinforced polycarbonate) enclosure and battery‑powered portability, the MC‑V12 is designed for field deployment. Though not fully mil‑spec sealed, the ruggedised design supports drops, vibrations and mobile use in demanding settings. (Optional higher‑end builds may use premium enclosures for increased durability.)

  • High‑Performance Processing Platform (Optional Upgrade) The unit supports optional high‑end single‑board computer (SBC) or Intel‑class processors for full‑duplex operation, parallel DSP workloads and enhanced mesh routing performance. With the upgraded CPU platform, throughput, latency and network scale are improved, justifying higher procurement cost where needed.

  • Specialised Production & Integration Unlike mass‑market electronics, the MC‑V12 is produced in low volume, integrating custom RF hardware, hand‑aligned directional antennas, adaptive software, and network‑mesh logic. The integrated nature of these features means the unit carries higher per‑unit cost but delivers capabilities far beyond consumer Wi‑Fi or smartphone‑based systems.


Typical Use‑Cases

  • Emergency response teams operating in remote or disaster‑affected locations without infrastructure

  • Security or field‑operations units requiring low‑detectability, peer‑to‑peer communications

  • Tactical mobile deployments where handheld nodes must form dynamic networks and operate despite RF jamming or interference

  • Infrastructure or industrial deployments where mobile handhelds need secure mesh communications independent of Internet or cellular backhaul

Built for mission-critical operations. Manufactured by James E Smith LLC. Order now and secure your communications, anywhere, anytime. Online purchasing is not allowed. Email purchasing@jamesesmithllc.com for purchasing.


MC‑V12 Software-Defined Handheld Radio $3,200 — Contact company for purchasing.

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