Spectra Precision FAST Survey Reference Manual - Manual (Page 28)

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 Diff: Difference
 Dist: Distance
 El: Elevation
 Fst: Fast
 ft: Foot
 Fwd: Forward
 HD: Horizontal Distance
 HI: Height of Instrument.
 Horiz: Horizontal
 Ht: Height or Height of Antenna with GPS.
 HT: Height of Target.
 ID: Identifier
 ift: International Foot
 in: Inch
 Inst: Instrument
 Int: Interval
 L: Left
 m: Meter
 No: Number
 OS: Offset
 Prev: Previous
 Pt: Point ID
 Pts: Points
 R: Right
 Rdg: Reading
 SD: Slope Distance
 Sta: Station
 Std: Standard
 Vert: Vertical
 ZE: Zenith