Polaris Alpha User Manual

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8. Raw Measurement Recording and Post Processing
For post-processing, both base data and rover data need to be available. The base data can be (1)
stored RTCM data received from RTK base station service or (2) stored SkyTraq raw measurement data
from Alpha RTK base. The RTK rover data is stored SkyTraq raw measurement data from Alpha RTK
rover.
To store raw measurement data, the supplied 16GByte SD Card needs to be inserted into Alpha’s SD
Card holder. To enable raw measurement recording, pressing the push button for 3 seconds until SD
Card LED turns ON. When SD Card is recording the LED will flash. Pressing the push button for another
3 seconds until SD Card LED ceases flashing will stop raw measurement recording. To avoid recording
file corruption, always stop raw measurement recording before powering off Alpha.
The logged raw measurement data or RTCM data can be converted to RINEX format using v.2.4.3
RTKLIB’s RTKCONV program. After converting base and rover logged data into standard RINEX format,
they can be post-processed using RTKLIB’s RTKPOST or other post-processing software.

Polaris Alpha Specifications

General

Brand	Polaris
Model	Alpha
Category	Receiver
Language	English