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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  Product Features Comparison
  Compare primary features of (1) information radio stations, (2) signage and (3) antennas in charts below.  

Information Radio Stations


Information Station

VoiceStar icon
RadioSTAT icon

Information Station * ALERT AM * RadioSAFE * VoiceStar * RadioSTAT * InfOspot
Building-Oriented Operation  
Isolated Operation  
coverage area
1/4-1/2 Mile +              
3 to 5-Mile Radius per Station option  
3 to 20+ Mile Radius per Station     option option        
Multi-Location Simulcast     option          
AC 120 Volts
Solar custom custom custom   custom custom custom
Rechargeable Battery Backup     option        
Uninterruptible Power Supply (UPS) option option option     option custom
audio **
Local Mic Recording        
Live Mic Broadcasting      
Remote Program Management by Network with Local Front-Panel Redundancy   option option custom
Local Program Management by USB/Flash Drive   option option custom
Remote Program Management by Telephone with Local Mic Reduncancy           option
Automatic National Weather Service All Hazard Alerts for Counties Targeted     option       custom
Redundant Control by 2-Way Radio       custom
Streamed Broadcasts to the Internet option option option option   option when fixed location option custom
Automatic Broadcasts of Compliant Emergency Notification System Alerts option option option option     option custom
Audio Processor option option   option when fixed location option custom
(*)  Can include combined features of USB and the IP capabilities.
(**) See audio-control-methods compared here.


features FASTrack Portable Quick-Erect Sign Flashing ALERT Sign FAS.6000 Flashing Beacons & Controller VoiceStar Changeable Message Sign & Information Radio Station Stealth Black-Out LED Sign
Sign Support     √   
Custom Messages    
Wireless Control   √ 
See signage summaries and details here.

AM Information Radio Antennas     
features ANXX Standard Antenna AN2X Standard Antenna HPR.0990 High Performance Antenna SS.3000 Antenna System
 Carrier Wattage (1700 kHz) at 100% Modulation Up to 100W * Up to 100W * Up to 270W * Up to 1000W
Efficiency 28 (530 kHz) to 73 (1700 kHz) with 10’ Groundplane 32 (530 kHz) to 92 (1700 kHz) with 25’ Groundplane 54 (530 kHz) to 171 (1700 kHz) with 50’ Groundplane 62 (530 kHz) to 190 (1700 kHz) (minimums) with 50’ Groundplane
Frequencies 530 to 1710 kHz 530 to 1710 kHz 530 to 1710 kHz 530 to 1710 kHz
Installation Format Top of Pole/Tower or Roof Mast Top of Pole/Tower or Roof Mast Top of Pole/Tower Freestanding
Required Groundplane Groundplane Matching Transformer or Antenna Tuning Unit & Groundplane Antenna Tuning Unit & Groundplane
Mounting Style ** freestanding pole/tower or roof mast freestanding pole/topwer or roof mast freestanding pole/tower self supporting
Nominal Length *** 10' 20' 32' 49'
Approximate Weight 15 lbs 25 lbs 30 lbs 400 lbs
See TechTalk's "Radio Antenna Siting" article.
(*) Carrier wattage reduction required at lower AM frequencies and with modulation formats that exceed 100% positive.
(**) Poles, mast systems, towers, insulators, mounts and groundplanes are optional and can be included.
(***) Provided for comparison; actual installed length varies with the operating frequency and tuning.
Contact Us All Products at a Glance Alert Stations across the USA Customer Support Policy Site Map
Customer Support Policy For Emergencies Case Studies FCC Frequencies & Licenses
Founding & Firsts For Health Applications FAQs Installation, Testing, Training
Privacy Policy For Highways FCC-Permitted Broadcasts Professional Recordings
For Visitor Information Glossary of Radio Terms Purchase Options
  For Other Common Applications News from The Source Rentals  
For License-Free Stations Operators' Zone Streaming
  Planning Guide
    Why Customers Say They Buy    

©  1983-2021  • Information Station Specialists, Inc. •  All Rights Reserved
PO Box 51, Zeeland, Michigan, USA, 49464-0051, Phone 616.772.2300, Fax 616.772.2966, Email Form

The USA's go-to source for information radio station equipment, related products and technical services.

Trademarks: 2X Signal Booster, ALERT AM Emergency Advisory Radio System, 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, 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, InfOspot Drive-Thru AM Radio Station, IP.8 Digital Message Player, IP.76 Digital Message Player, ITS.6000 Highway Advisory Radio Network, MGR.021 Digital Audio Management System, LIGHTNING LED Changeable Message Sign, NX8R Digital Message Player, 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, Signal Measurement Radio Receiver, Stealth Sign, StreamCAST Internet Broadcast Service, SS.3000 Free-Standing AM Radio Antenna System with Tower, SX.200 Wattmeter, Talking House AM Radio Transmitter, TH.5 InfOspot Transmitter, TR.6000 Transmitter Model HQ 5.0, TMS.020 Digital Audio Management System, TR.6000 Transmitter Model 15.73, VoiceStar Portable Highway Advisory Radio Station (with or without Changeable Message Sign), VP.9000 Vertical Profile Antenna Support and Grounding System.

Information Radio Stations is a generic term synonymous with Travelers Information Stations (TIS), Highway Advisory Radio Stations (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, wateter, 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