Measuring Antenna Height - Topcon HiPer SR Operator's Manual

Measuring Antenna Height

The receiver calculates the coordinates of the antenna's phase center. To determine the coordinates of the station marker,
specify the following:
•
Measured height of the antenna above the station marker
•
Method of measuring the antenna height
•
Model of the antenna/receiver used
Any necessary antenna phase center adjustments, based on the antenna model, is automatically applied. This adjustment, when
combined with accurately measured height and measurement methods, allows for correctly computed reference marker
coordinates.
To accurately measure the antenna height:
1. Measure the antenna height above the control point or marker, either the slant height or the vertical height.
You may either measure the vertical height to the Antenna Reference Point (ARP) located at the bottom of the
receiver at the base of the mounting threads, or measure the slant height to the Slant Height Measurement Mark
(SHMM) on the side of the receiver. For ARP and SHMM marks on the receiver, see Figure 18.
2. Record the antenna height, points name, and start time in the field notes.
Measuring Antenna Height
P/N: 1000737‐01 52