Information Station Specialists is the best known source of traveler's information stations, highway advisory radio, advisory signs and services needed to reach motorists. Learn more about Information Station Specialists.
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Information Radio Stations (TIS/HAR) •  Advisory Signage  •  Specialized Products/Services
Bill Baker

Learn how, when and why our company was founded and how information radio stations − Travelers Information Service (TIS) and Highway Advisory Radio (HAR) − evolved from visitor use to emergency use.
Notable Firsts
We provide information radio systems and related products that challenge conventional theories of equipment deployment and installation.
1983 First newsletter for information radio station operations (Limited Area Broadcasting Report).
1986 First portable information radio station (a truck-mounted Information Radio Station for Caltrans.
1989 First preassembled antenna groundplane/mat, PowerPlaneTM, Patent 5,495.261
1990 First digital message player for information radio station that allowed hundreds of messages to be assembled into playlists with inclusion of live sources (AP55TM).
1991 First information radio station on in-band AM frequencies – 690 kHz AM for Herbert Hoover National Historic Site (national parks that have had information radio stations).
1993 First universally portable information radio station.
1995 First GPS Frequency-StabilizedTM information radio station (3 stations for the City of Naperville, Illinois).
1996 New TravelTalk-style information radio station radio programming format.
1997 Computer control of a network of information radio station linked by telephone lines, including solar powered/wireless flashing advisory signs (ITS6000TM Highway Advisory Radio Station System).

24-hour hotline to serve customers via phone for the life of the product, 24/7.
1999 First full-service AM advisory radio systems website and newsletter ('s The Source).

First information radio station transmitter with synthesized frequency operation (TR6000 HQ5.0TM).

And, the first fixed information radio station specifically for use by Emergency Management, which included automatic warning siren interfacing, automation National Weather Service preemption on detection of NOAA SAME codes for a specific hazard and geographic area, large battery backup and multi-station GPS-based operation (ALERT AMTM).
2000 First trailer-mounted, portable information radio station specifically for use by Emergency Management, which included automatic warning siren interfacing, automatic National Weather Service preemption on detection of NOAA SAME codes for specific hazard and geographic area, large battery backup, wireless operation by solar power (RoadRunnRTM).
2002 First large real-time, multi-station grouping of GPS Frequency-StabilizedTM Information Radio Station (for Dow Chemical of Freeport, Texas).
2003 First solar/wireless-controlled flashing beacon sign system for surface streets to alert motorists to information radio station signals in emergencies (Flashing ALERTTM Signs).

First information radio station antenna system that eliminated the need for groundplanes and ground rods for antenna grounding (VP9000TM Vertical Profile Antenna System, Patent 7,027,008).
2004 First information radio station that uses MP3 files as a basis for audio programming (the Information StationTM MP3 Edition).
2006 First linking of audio to multiple Information Radio Stations by wireless means (Wireless Audio System). 

First system that allowed IP-based control of a information radio station system on a network (SignalcastIP).
2007 An exclusive radio station rental service for fairs, festivals, sporting events and conventions to broadcast parking, directions and event schedules (EventCAST SM).

Professional message recordings provided "already in the box" for information radio stations on start-up (Professional Recording Services).

First digital message player for information radio stations that allowed 3 live sources, prioritized operation and 2-way radio redundant control in the event phone lines go down during emergencies (NX8R).
2008 First suitcase-style portable information radio station specifically for emergency use (RadioSTATTM).

The first national association of information radio station operations (AAIRO).
2009 First information radio station on 1710 kHz AM (Hudson County, New Jersey).
2011 PowerSTATTM portable clean energy source – a pure sine wave-AC inverter plus high capacity charger with a hefty battery pack, all packaged in a weather resistant portable case. Charges at any standard 120VAC power outlet.

Information Station Specialists first proposed to the FCC (and now has pioneered) the licensing of information radio stations on the 1710 AM frequency for clients with special applications.
2012 Introduced StreamCastsSM, the first simulcast streaming service to allow programming of Information Stations to be heard on computers and mobile devices as well as on the radio.
2013 First customized format (InfoRadio Format) to improve content and professional quality of broadcasts.
2014 ENcastTM Emergency Notification System introduced to broadcast text-based alert messages automatically.
2015 Potential Interference Notification ServiceTM (PINS) begun to protect new or existing Travelers Information Stations for life. Each month Information Station Specialists scans the radio spectrum and advises licensees immediately if there are interference issues, including any changes in full-power broadcast stations that could negatively impact an information station’s operation.
2016 Adds first 5000 Hz full-bandwidth AM transmitter as well as broadcast-quality audio processor and filter to line of options to increase stations' broadcast intelligibility and range.