Sec.  87.171   Class of station symbols.

   The two or three letter symbols for the classes of station in the aviation
   services are:

   Symbol and class of station

   AX—Aeronautical fixed

   AXO—Aeronautical operational fixed

   DGP—Differential GPS

   FA—Aeronautical land (unspecified)

   FAU—Aeronautical advisory (unicom)

   FAC—Airport control tower

   FAE—Aeronautical enroute

   FAM—Aeronautical multicom

   FAP—Civil Air Patrol

   FAR—Aeronautical search and rescue

   FAS—Aviation support

   FAT—Flight test

   FAW—Automatic weather observation

   GCO—Ground Communication Outlet

   MA—Aircraft (Air carrier and Private)

   MA1—Air carrier aircraft only

   MA2—Private aircraft only

   MOU—Aeronautical utility mobile

   MRT—ELT test

   RCO—Remote Communications Outlet

   RL—Radionavigation land (unspecified)

   RLA—Marker beacon

   RLB—Radiobeacon

   RLD—RADAR/TEST

   RLG—Glide path

   RLL—Localizer

   RLO—VHF omni-range

   RLS—Surveillance radar

   RLT—Radionavigation land test

   RLW—Microwave landing system

   RNV—Radio Navigation Land/DME

   RPC—Ramp Control

   TJ—Aircraft earth station in the Aeronautical Mobile-Satellite Service

   [ 53 FR 28940 , Aug. 1, 1988, as amended at  57 FR 45750 , Oct. 5, 1992;  64 FR 27475 , May 20, 1999;  69 FR 32882 , June 14, 2004]