Communication Trailer

Executive Summary

The Coffeyville Amateur Radio Club (CARC) Communication Trailer is a purpose-built mobile unit designed to deliver reliable communications support, engage the public through live demonstrations, and serve as a hands-on educational tool across Southeast Kansas. Outfitted with modern radio, digital, and computing systems, the trailer enhances both emergency preparedness and public outreach by showcasing the evolving role of amateur radio in today’s world.

At its core, the trailer features two operator stations, each staffed by a RADO (Radio Operator) and a DATO (Data Operator) working together to manage voice and digital traffic. This dual-operator model promotes efficiency, allowing tasks to be divided and handled simultaneously. Station 1 is configured as the primary emergency communications hub, while Station 2 is optimized for education and event support with connections to external audio and video systems.

Inside, the trailer includes HF, VHF, and UHF radio capabilities via the Yaesu FT-991A and Anytone 578, alongside a Whistler TRX-2 scanner for real-time monitoring of public safety traffic. AREDN mesh networking provides high-speed data links without relying on internet infrastructure, while Windows-based desktop computers with mirrored dual screens and GPS receivers support digital messaging, mapping, and logging. A modular audio system gives each operator full control over radio monitoring and enables radio traffic to be broadcast externally during events or demonstrations.

Power is supplied by a Victron Energy system with a 600Ah LiFePO₄ battery bank, 30-amp shore power input, and generator compatibility. This setup ensures uninterrupted operation and includes smart power assist features that allow the trailer to run fully even when limited to a standard household outlet. Each operator station has a dedicated 100A DC power feed to support all onboard systems.

Externally, the trailer includes three heavy-duty flagpole mounts for rapid antenna deployment, a public-facing TV and speaker system for live demonstrations, and a weatherproof connection box for RF, data, GPS, and 12V DC power pass-through. Onboard amenities such as air conditioning, heating, a mini fridge, microwave, coffee maker, and rapid USB charging ports provide support for long deployments in comfort.

In addition to its technical capabilities, the trailer serves as a valuable teaching and recruitment tool. By demonstrating advanced radio technologies like Winlink, APRS, and mesh networking, it engages students, Scouts, and the public while promoting STEM education. Whether supporting first responders during a crisis or serving as a learning lab at a school event, the CARC Communication Trailer is a modern, mobile example of amateur radio’s vital role in service, education, and community involvement.