Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 69)

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2. Set-up and Connection Technical Reference Manual-4.0.0en
2.15.3 Measuring Slope Heights
VE1
-VO
SR
VE2
HO
MRP
VO Vertical Offset
HO Horizontal Offset
SR Slope Height Reading
VE1 Vertical Phase Center Eccentricity for L1.
VE2 Vertical Phase Center Eccentricity for L2
MRP Mechanical Reference Plane
If you are using the Slope Height Reading the antenna
height is calculated as follows:
Antenna Height = √( √( √( √( √(
SR² - HO²) ± VO
If the Offset Point on the antenna is above the Mechanical
Reference Plane MRP, the Vertical Offset VO is negative.
The Slope Height Reading is measured from the point on
the ground to the outside edge of the antenna. The
Antenna used for this example is a Dorne Margolin T
(Leica AT504) as specified by the IGS. The Mechanical
Reference Plane will differ depending on the Antenna type
used.