X20P compatible with the CT ACORN corrections URL?

GPS/GNSS
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X20P compatible with the CT ACORN corrections URL

I am looking at purchasing a sparkfun ublox ZED-X20P module :

https://www.sparkfun.com/sparkfun-allband-gnss-rtk-breakout-zed-x20p-qwiic.html

and this antenna: https://www.sparkfun.com/gnss-multi-band-l1-l2-l5-surveying-antenna-tnc-spk6618h.html

and wanted to get corrections data from this source: (I live in CT) https://portal.ct.gov/dot/-/media/dot/aec/const_inspection/acorn_faq.pdf . It says As of July, 2025, ACORN provides signals and corrections for Galileo (EU) and Beidou (China) satellites

I was wondering if someone could confirm if the URL and port number that ACORN provides, acorn.uconn.edu (or IPs 137.99.150.56 / 137.99.150.112) using Port 2101 for NTRIP caster services is compatible with the X20P receiver ?

Due to the cost of the X20 and antenna ($500) I wanted to make sure this setup would work ?

2

Tools like WAY permitting a determination of what signal encodings the messages have in common

Each RTCM3 MSM message has multiple “cells” that decompose the specific subset of signals that are packed in the message for each individual satellite.

By Optimal, I mean in an X20P to X20P scenario you’re likely to get 3 signals/bands in common, whereas other receivers this might be between 1 and 3, which will improve as the technology matures, and GPS L5 becomes fully enabled/certified.

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And that’s great, but it doesn’t break down the signals each constellation is using in their receiver equipment (TRIMBLE ?)

You might want to have a conversation with the ACORN staff about the signal mix, or look at the RINEX data in the CORS repos. If you’re getting GPS L1CA/L2C and GLONASS L1/L2 things should be workable.

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4

Yes, choose the mount point “VRS3_RTX”

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