EQUIPMENT CONFIGURATION. (CONT)
In the unshelterized configuration, the IFF input from the ANITPX-44 interrogator set is optional. When utilizing the IFF
input, refer to TM 11-5895-468-12 for operation of the ANITPX-44 interrogator set. There are no IFF operator controls on
the AN/TPN-18A radar set. Also, only one control-indicator may be used to operate the radar set in this configuration.
In the shelterized configuration the radar set is Installed as part of a landing control central system (AN/TSQ-71 B). The
system provides shelterization, primary ac power, and interconnecting cabling and control to Interrogator Set ANITPX-44.
Also, interconnecting cabling is provided for the control-indicators. Radio, telephone, visual communications, and
environmental control facilities are also incorporated in the system for air-to-ground communications and for tie-in to
tower and air traffic control facilities. The radar set group is installed on a trailer. The pedestal center section is
anchored to the trailer and the legs are stored on the trailer. Refer to TM 11-5895-474-12 addendum for a complete
description and operation of Landing Control Central ANITSQ-71 B.