Instruction Manual

• Set the GNSS antenna parameters:

– Reference Position: Specify the physical point on the

rover system for which the receiver will accurately

compute RTK positions. The three possible choices

are: Antenna L1 phase center, Antenna Reference

Point (ARP) or Ground Mark.

– Measurement Type: Specify the method that was used

when setting up the rover system to measure the height

of the GNSS antenna (Vertical or Slant Height).

– Antenna Height: Value of rover antenna height,

expressed in the selected distance unit, as measured

according to the specified measurement method.

– Receiver Antenna: Specify the model of GNSS antenna

used by the receiver. Select “UNKNOWN” if you don’t

know which model is used.

– Antenna Radius: In case of a “Slant Height”

measurement, enter the antenna radius (this is a

manufacturer specification), taking care to enter this

parameter in the selected distance unit. See also the

diagram and table below for more information.

– SHMP Offset: In case of a “Slant Height” measurement,

enter the SHMP offset (this is a manufacturer

specification) taking care to enter this parameter in the

selected distance unit. See also the diagram and table

below for more information.

NOTE: The Antenna Radius and SHMP Offset fields are

automatically preset to the right values when you

select an antenna type in the Receiver Antenna field.

– Virtual Antenna: This option is useful when the rover is

also used to log raw data. In this case, you can specify

Antenna Model P/N Antenna Radius (m) SHMP Offset (m)

ASH-661

ASH-660

802135

802133

0.0953 0.0483

MAG111406 111406 0.0921 0.0516

ARP

SHMP Offset

Antenna radius

SHMP