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Existing RID Systems

Two types RID systems are installed in about 65 locations in the Northwest Mountain Region.  These units are nearing the end of their useful life and many are currently non-functional.  Functionally, these units are similar.  When personnel are authorized on to a runway, a switch is pressed to indicate that runway should not be used.*  When a microphone for a radio controlling that runway is keyed, the associated lights will flash and and an audible message like "Check Runway" will sound as a reminder to the Air Traffic Controller that traffic should not be directed there.  The primary difference between existing models is the number of zones that can be monitored.

* A discussion with Air Traffic Controllers at ARTCC revealed some difference of opinion whether a runway was "closed" when personnel are working on it and when a RID system might be used.

If other RID systems are installed, please email Jon and let him know, including as many details as possible.  When considering the direction of future systems, the more we know about current systems, what is desirable and what doesn't work, the better the results will be.

 New Bedford Panoramix - First RID System in the Northwest Mountain Region



Key Features:

  • 4 Zones.
  • Warning by Lights and Audible Message or Lights Only depending on which switch is pressed.
  • Fixed Message - "Check Runway."
  • Two PTT circuits may be connected to RID unit.

Raytheon Service Company - Second RID System in the Northwest Mountain Region




Key Features:

  • 8 Zones.
  • Warning by Lights and Audible Message.  Audio may be muted only when switch is pressed.
  • Choice of 4 Recordable Messages - but a single message must be selected for the unit (i.e., same message is applied to all zones).
  • Two PTT circuits may be connected to RID unit.
Question for users: Is any message other than "Check Runway" used?  Are new messages ever recorded?
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