SolarMax Portable Highway Advisory Radio (HAR)

The SolarMax Portable Highway Advisory Radio (HAR) System keeps traffic flowing by broadcasting up-to-the-minute radio advisories to motorists. The flexibility of the SolarMax HAR allows for quick 10 minute or less set-ups. Solar charged power offers dependable service around the clock and during extended periods of inclement weather. This Portable HAR System utilizes low power AM radio to inform motorists of conditions ahead, giving them enough time to take action or alternate routes. The system can be used as a work zone HAR to assist in managing a construction site, a temporary incident, inclement weather evacuation, or a frequently congested traffic area. Messages can be changed quickly and remotely should conditions vary, and when the job is finished, the SolarMax System can be ready for duty on the next upcoming project.


  • Simple and quick to assemble, deploy and disassemble
  • Broadcasts messages to motorists in a 3 to 5 mile radius
  • Robust design, including built-in lightning suppression
  • Meets all FCC rules and regulations
  • Weather-resistant and theft deterrent enclosures
  • Portable ground system
  • On-board digital recorder preserves audio messages with no external power source

Modular Components

Highway Advisory Radio (HAR) systems from MH Corbin utilize AM, FM and CB radio frequencies to broadcast messages to motorists. Informing drivers before they encounter delays and add to traffic problems is important for maintaining a safe driving environment. Since AM radio is a standard feature in nearly all vehicles, using MH Corbin HAR is one of the most practical ways to get the message out to everyone.

Advanced Applications with Platinum Software

Message recording, editing, review, scheduling and synchronizing are quick and easy through the intuitive graphical user interface that features map displays for each HAR system in your network. Manage and store a library of messages for quick release to the public, including the capability to execute commands for your entire HAR network in just a few simple steps. 

Platinum can manage other transportation communication devices such as flashing beacons and variable messages signs (VMS). The software also has the ability to monitor set parameters and alert an administrator or user through email. The software system consists of a central server that manages and stores all information about the devices, and a client software that allows a user to manipulate and control the central server.

See how it works

 View the YouTube Tech Talk on the SolarMax with MH Corbin.


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