How to see what base correction is sending (rtcm3 message) in pc. Is there a program or software I can use?
You must have rtklib installed on your pc and download the RTCM3 file from GNSS. Convert RTCM3 with rtkconvert and in the header it will have the Cartesian coordinates of the base
Can it send LIVE base correction. I mean directly when my base receiver is open and I connect the TX and GND wire of reach device to my laptop via rs285.
str2str -in serial://port:baudrate | gpsdecode
You can use SNIP to check the RTCM3 messages from the base.
I think you can also use Lefebure NTRIP client.