Antenna Configuration / Position Antenna / Vector Antenna

Use these settings to define the antenna being used by the receiver.

Select Receiver Configuration / Antenna.

The SPSx61 receiver uses two antennas. All data relating to position references the Position (POS) antenna. The Vector (VECT) antenna is used to provide vector information only, such as the heading and attitude.

For dual-antenna systems such as the SPSx61, this is the Position antenna. You can also use these settings to define the Vector antenna deployed with the SPSx61 receiver.

Antenna Type – Select the type of antenna being used with the receiver. The antenna serial number is automatically shown for the GNSS smart antenna.

Antenna Serial Number – Enter the serial number of the antenna being used.

Antenna Measurement Method – Select how the antenna height is being measured.

Antenna Height [m] – Enter the measured height of the antenna. This is typically measured from a ground marker or the mounting point of the antenna.

Apply Antenna Correction to – When the RTCM V3 check box is selected, the Base antenna is set to a “Null Antenna” and no antenna model parameters are sent to the rover receiver. When using Trimble receivers exclusively, Trimble recommends that you select the check box. In some case, when using a third-party rover receiver, the check box should be left cleared and the antenna model parameters are sent to the rover. To determine the settings for this parameter, check with the third-party manufacturer.

If available, an image of the selected antenna is displayed so that you can confirm that you have selected the correct antenna.

L1 antenna phase center offsets for each antenna type

Antenna name

Siteworks/SCS900 name

P/N

Bottom of antenna mount (cm)

GA510

GA510

55550-00

7.54

GA530

GA530

44530-00

7.83

GA810

GA810

99810-00

7.23

GA830

Not supported

48830-00

8.85

Micro-centered L1/L2

M-centered

33429-00

6.25

Micro-centered L1/L2 w/GP

M-centered w/GP

Rugged Micro-centered w/13 Inch GP

Rugged M-center

36569-00

5.00

Zephyr

Zephyr

39105-00

4.60

Zephyr Geodetic

Zephyr Geodetic

41249-00

5.33

Zephyr Model 2

Zephyr Model 2

77970-00

8.43

55970-00

57970-00

Zephyr Geodetic 2

Zephyr Geodetic Model 2

77971-00

8.55

55971-00

57971-00

Z Plus

Z Plus

57200-00

4.60

Zephyr Model 2 Rugged

Zephyr Model 2 Rugged

65212-00

9.73

Zephyr 3 Base

Zephyr 3 Base

115000-10

6.52

Zephyr 3 Rover

Zephyr 3 Rover

105000-10

6.17

Antenna Query

Click Antenna Query to interrogate a supported antenna for its model and serial number.

Understanding antenna phase center offsets

See Antenna Phase Centers.