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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 HQ5.0 TM
Audio Filter
HQ5.0 TIS Audio Filter
Designed specifically for use in Travelers Information Service (TIS) radio applications, HQ5.0 Audio Filter meets and exceeds filtering standards for TIS Stations (FCC Rule Section 90.242, amended by the FCC in 2015). Subsequently, the HQ5.0 Audio Filter was certified by the FCC on February 18, 2016, for exclusive use with the TR6000 Transmitter from Information Station Specialists.
  • Eliminates interference to adjacent channels via a sharp-cutoff, low-pass function. Exceeds requirements for adjacent-channel protection, even under adverse conditions.
  • Frequency response:  20 Hz to 5 kHz.
  • Attenuation:  greater than at 1 kHz by minimum of 83 log 10 (f/5) decibels. Above 20 kHz, attenuation greater than 50 db. “f” = frequency in kHz.
  • Input/output: Balanced. Screw terminals with shield through-connection.
  • Chassis:  Diecast aluminum/black textured.
  • Cover:  Diecast aluminum/black textured.
  • Flanged with four cover screws, four rack mounting slots. Moisture seal “O” gasket.
  • Power requirement:  Passive. No power supply required.
  • Size and weight:  1.75”H x 1.52”W x 4.78”L; 4.6 oz.
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Bill Baker (phone 616.772.2300, extension 102) can provide a formal quote.