how to connect tcp232 to rtk2 board
tx1 to rxd and rx1 to txd
5v from pcb board to 5v on rtk2board and to 5v vdd on tcp232
Gnd from pcb to rtk2board and to gnd on tcp232
Sodder wire from 3v3_out to ioref on rtk2board
Connect ethernet cable from tcp232 to router and another from router to computer
Set lan ip to 192.168.1.1 on router
Set tcp232 to (udp client) sending to 192.168.1.255 port 9999
Connect rtk2board to ucenter and change following settings
PRT (ports) set uart1 protocol in and out to nmea with 115200 baudrate
msg (messages) turn on or make sure uart1 is on for GxGGA, GxVTG and GxRMC
These pictures are the settings I used for the tcp232.
![usr2|590x500]
local port should be 7777 or something other than 9999 and then aog ntrip port should be 7777
(upload://2aBzVR8YzeUdm0xxQkyzowhgQIe.jpeg) 
This is what worked for me but might be some better ways to do it.