Syncing RTCM3 Data with PPS signal

[polina.buriak]

Hi @lche,

Thanks for your patience!

Let me answer your questions below.

@lche

According to the Emlid support the only way to get the RAW receiver signal via the RS232 interface is using the RTCM3 Format in “Base Mode”.

Let me explain this a bit more. Reach RS2 can record the raw data log, base correction log and position log. The base correction log contains the information that the rover receives from the base station.

However, currently, it’s not possible to output this data in real-time. You can download the full base correction log only after the survey.

@lche

Or is it possible to receive an additional 1 Hz NMEA signal ($GPRMC) in parallel which can be used to get the UTC time for the last PPS flank.

On the latest v2.25.2 dev firmware version, you can choose to output only the GPRMS NMEA message at 1 Hz. However, the dev versions allow you to test the new features early so we don’t recommend using them during important fieldwork.

To choose this message on the stable version v2.24.2, you will need to output the position to a third-party board that will parse it and provide you with the necessary message only.