The connected future of public transit, emergency response, and industrial fleet operations relies on more than just fast data—it demands reliability, redundancy, and resilience in motion. The Digi TX64 5G / LTE-Advanced Pro Cellular Router (TX64-A161) delivers exactly that: a rugged, dual-modem platform engineered to maintain uninterrupted high-speed connectivity across challenging environments. For integrators and network engineers looking to build out mobile infrastructure at scale, the TX64 offers a field-tested foundation paired with AG Antenna’s portfolio of high-performance antenna systems.
Dual Cellular Modems Built for Redundancy and Speed
At the heart of the TX64 platform is its dual 5G NR / LTE-Advanced Pro Cat 20 modem architecture, designed to deliver reliable, concurrent cellular connectivity across a broad spectrum of frequency bands. Each modem supports EN-DC (E-UTRAN New Radio - Dual Connectivity), enabling simultaneous LTE and 5G transmissions with theoretical throughput exceeding 1.2 Gbps per modem. This configuration is ideal for transit and fleet operations requiring seamless failover or load-balanced connections between carriers.
With extensive band support across Sub-6 GHz 5G NR (including n77, n78, and n79 for C-band) and LTE FDD/TDD bands (B1–B71), the TX64 is equipped to operate across domestic and international networks. This ensures long-term deployment flexibility as carriers continue evolving their infrastructure.
RF and Interface Connectivity: Precision at Every Port
Digi’s TX64 provides a robust set of RF interfaces designed for modular integration:
- Cellular Ports: Each modem connects via two or four SMA 50 Ω ports, supporting MIMO antenna configurations.
- Wi-Fi Interfaces:
- Private backhaul: 5 GHz, 4x4 MU-MIMO with RP-SMA connectors, capable of up to 1.733 Gbps.
- Passenger Wi-Fi: 2.4/5 GHz, 2x2 MIMO with RP-SMA, reaching 867 Mbps for public access points.
- GNSS Input: One SMA port provides multi-constellation support (GPS, GLONASS, Galileo, BeiDou) with active antenna power (3.3V), offering high sensitivity (–163 dBm typical).
- Bluetooth: Also included for local device pairing or provisioning workflows.
This port layout enables tight integration with AG Antenna’s multi-element platforms, including omnidirectional and directional MIMO cellular antennas, dual-band Wi-Fi solutions, and high-gain GNSS units.
Security, Segmentation, and Scalable Network Management
Security is core to Digi’s engineering philosophy. The TX64 is FIPS 140-2 validated and FirstNet Trusted™, supporting multi-APN, segmented network routing. This allows engineers to isolate mission-critical traffic such as AVL (Automatic Vehicle Location), fare collection, and camera backhaul from public internet access layers.
Further, Digi TrustFence® provides encrypted data storage, secure boot, and identity management to protect from firmware tampering or rogue device infiltration.
For operations management at scale, Digi Remote Manager® offers centralized provisioning, configuration management, OTA firmware updates, and real-time diagnostics. Features like WAN Bonding, Mobile VPN, and Docker-compatible containers allow edge computing tasks—such as AI-based video analytics or telemetry preprocessing—to execute directly on the TX64 hardware.
Rugged Positioning with Untethered Dead Reckoning (UDR)
In transit environments where GNSS signals are intermittent—such as tunnels, urban canyons, or underpasses—the TX64 compensates with Untethered Dead Reckoning (UDR). By combining GNSS with onboard inertial sensors (accelerometer, gyroscope), it maintains positional awareness in real time even without satellite lock. This capability is critical for consistent fleet tracking and reporting in cities and rail corridors.
Engineered for Harsh Environments
The TX64 is purpose-built to withstand the extreme conditions found in mobile and transit applications:
- Operating Temp: –30 °C to +70 °C
- Storage Temp: –40 °C to +85 °C
- Power Input: 9–36 VDC with ignition sensing
- Certifications: NEMA TS2, MIL-STD-810G, IP66-rated (Rail variant), EN 50155, EN 61373, EN 50121-3-2
Its passive, fanless aluminum enclosure provides electromagnetic shielding, efficient heat dissipation, and robust vibration resistance—qualities essential for deployments in heavy-duty vehicles, public buses, and railway systems.
Use Case Scenarios
Public Transit Fleets: The TX64 enables secure CAD/AVL routing, farebox data transfer, passenger Wi-Fi, and on-board surveillance camera backhaul over segregated cellular links.
Rail Applications: The TX64-R210 Rail variant is certified for rolling stock environments and leverages UDR for accurate tracking in signal-limited zones.
Emergency Response Vehicles: With Verizon Frontline and FirstNet Trusted™ support, the TX64 delivers mission-critical LTE/5G connectivity for fire trucks, EMS, and law enforcement mobile command units.
Pairing with AG Antenna Solutions
To fully leverage the TX64’s performance, the RF front-end must be designed with high-efficiency, properly matched antenna systems. AG Antenna offers:
- Multi-band Cellular MIMO antennas (4:1, 5:1, 7:1 variants) with gain-optimized radiation patterns for mobile environments.
- Low-loss coaxial cable assemblies (e.g., AGA400) to maintain VSWR and minimize insertion loss.
- Wi-Fi and GNSS Antennas with robust IP-rated enclosures for rooftop or interior integration.
See all antennas solutions from AG Antenna for the DIGI TX64 (TX64-A161) Router
See antenna port guide for the DIGI TX64 (TX64-A161) Router
Bringing it All Together
The Digi TX64 is more than a cellular router—it’s a hardened communications platform designed for the most demanding mobile applications. When paired with AG Antenna’s precisely engineered RF solutions, it unlocks dependable 5G/LTE connectivity, enterprise-class network segmentation, and real-time fleet control across any terrain.
Ready to upgrade your fleet or rail communications infrastructure? Explore AG Antenna’s recommended antenna systems for Digi TX64, or contact our engineering team for integration support.