Piping SPARTN data from NEO-D9S via "DGPS/DGNSS" methods in uCenter Classic

GPS/GNSS
1

https://portal.u-blox.com/s/question/0D5Oj00000VKojjKAD/piping-spartn-data-from-neod9s-via-dgpsmethods-in-ucenter-classic

2

Option for NEO-D9S, covered how you just need to solder part in place for older models, should work for C100-F9K / C102-F9R
https://portal.u-blox.com/s/question/0D5Oj00000JBMgbKAH/c102f9r-upgrade-dec-2020-unit-sn-low-140s

https://learn.sparkfun.com/tutorials/gnss-correction-data-receiver-neo-d9s-hookup-guide/all