Information Station Specialists is the best known source of travelers information stations, highway advisory radio, advisory signs and services needed to reach motorists with public service information. Learn more about Information Station Specialists.
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Now in Our 40th Year  ̶  America's Source for Information Radio Systems and Services

License-Free Radio Systems for Microbroadcasters
Customer Reviews
 "This radio system has kept our community informed during our recent flooding event. Among other things, we broadcast road closure and detour information that has helped residents navigate during the crisis.”
Craig Colvin, WV
 
"I just want to thank you for a great product. I'm a radio hobbyist and I'm enjoying the radio and really impressed with the package." 
Ken Parrish, TX
 
"I've had my Talking House AM Radio Transmitter for nearly a year. I use it every day to listen to my favorite radio shows and music on my restored vintage tube radios. The Talking House transmitter broadcasts a clear signal to every room in my house and I can even pick it up clearly on the car radio when parked in the driveway. It comes as a whole unit and doesn't require any assembly other than plugging in the antenna and the power adapter."
Jonathan Sanford, MI
InfOspot System
1/4 to 1/2 Mile Radius Range
InfOspot Radio Transmitter Systems are customized professional packages comprised of a license-free (Part 15) transmitter paired with and outdoor antenna/tuner and coaxial cable.

Transmitter only:  if a range of up to 250' is all that is required, the InfOspot TH.5 Transmitter may be purchased alone. A 3-meter wire antenna is included that works in conjunction with the transmitter’s internal auto-tuner.

Options to enhance audio quality and convenience, mounts, cabinets, portability and connectivity (USB / flash drive, network or wireless gateway) are available.

See many examples of use on the main product page linked above.
Free Radio Systems
Free-Radiate AM Radio Stations
On-Property Coverage
If you represent an educational institution, FCC Rules Part 15.221 allow the use of a transmitter without a license, as long as the signal coverage extends only to your property. There are no restrictions on antenna height, transmitter power or content. 

Transmitter TR.6000 Model 15.73 provides up to 10 watts of signal and is capable of many miles of coverage on large parcels.

Free-radiate systems are customized to the application. Antennas are typically mounted on a flat building roof or pole with the transmitter and audio equipment located inside the building. Email us your desired goal; and we'll recommend a setup. You will be able to select from special cabinets, mounts, processors and audio solutions.
Related Links
Frequently Asked Questions
Glossary of Radio Terminology
 
ABOUT PRODUCTS RESOURCES SERVICES SEARCHES
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Why Customers Buy For Health Applications FAQs FCC Frequencies & Licenses  
Founding & Firsts For Highways FCC-Permitted Broadcasts Installation, Testing, Training
Privacy Policy For Visitor Information Glossary of Radio Terms Professional Recordings
  For Other Common Applications News from The Source Purchase Options
  For License-Free Stations Operators' Zone Rentals  
For AM Radio Broadcasters Our Stations across the USA Streaming
For Amateur (HAM) Operators Planning Guide  

©  1983-2023  • Information Station Specialists, Inc. •  All Rights Reserved
PO Box 51, Zeeland, Michigan, USA, 49464-0051, Phone 616.772.2300, Email Form
TRADEMARKS:  2X Signal Booster, ALERT AM Emergency Advisory Radio System, AMReady Broadcast Components, ANXX AM Radio Antenna, AP.55 Digital Message Player, ENcast Emergency Notification Broadcast System, EventCAST Portable Information Radio Service, FAS.6000 Flashing Beacons & Controller, FASTrack Quick-Erect Sign, FlashCAST Internet Broadcast Service, Flashing ALERT Sign System, FlexPlane Preassembled Groundplane, Free-Radiate On-Premise Radio Broadcast System, HearMoreInfo Internet Broadcasts, HPR.0990 High Performance Antenna, i A.M. Radio Transmitter, Information Station Specialists, InfoRadio Format, Information Station Classic, Information Station IP, Information Station USB, InfOSpot AM Radio Transmitter Station, IP.8 Digital Message Player, IP.76 Digital Message Player, ITS.6000 Highway Advisory Radio Network, LIGHTNING LED Changeable Message Sign, Lowdown 630-Meter Band Amateur Radio Antenna, MGR.021 Digital Audio Management System, MXB.22 THEMATCHBOX Impedance Matching Transformer, NX8R Digital Message Player, PPFL PPFS PowerPlane Preassembled Groundplane, RadioSAFE Wide Area Emergency Broadcast System, RadioSTAT Portable Emergency Advisory Radio Station, RE 2.5 Range Extender Outdoor Antenna and Tuner, RESPONDER 1 Portable Highway Advisory Radio System, RoadRunnR Portable Highway Advisory Radio System, SSD.20 Severe Storm Detector, SMR Signal Measurement Radio Receiver, Stealth Sign, StreamCAST Internet Audio Delivery Service, SS.3000 Free-Standing AM Radio Antenna System with Tower, SX.200 Wattmeter, Talking House AM Radio Transmitter, TH.5 InfOspot Transmitter, TMS.020 Digital Audio Management System, TR.6000 Transmitter, TMS.020 Digital Audio Management System, TR.6000 Transmitter Model 15.73, VP.9000 Vertical Profile Antenna Support and Grounding System.

Information Radio Station is a generic term synonymous with Travelers Information Station (TIS), Highway Advisory Radio (HAR) / Highway Information Systems & Low Power Radio Stations (LPR). Operation of the stations is governed by FCC Part 90.242 Rules. A FCC license is required. Information Radio Stations may be fixed or portable. Subcomponents may include transmitter, antenna and ground system, digital voice player, wattmeter, cabinet with conventional or Corbin locks, lightning arrestors for RF, power and telephone lines, coaxial cable. Most stations employ black maximized antennas to discourage ice accumulation and security measures to prevent unauthorized program access. Options include synchronization, battery backup, solar power, remote programming by local, network or telco, multi-station audio distribution via RF or LAN / WAN or wireless network.