Wifi NTRIP Client diconnects from SAPOS NTRIP-Caster

Q&A forumCategory: QuestionsWifi NTRIP Client diconnects from SAPOS NTRIP-Caster
Christoph asked 2 weeks ago
I have a simpleRTK2B V1 together with a WIFI NTRIP-Master.

Connecting to the NTRIP (SAPOS in Germany) is no problem if I connect u-center to the board via USB (Power + GPS).
I get a FIX and the LED “NO RTK” is off.

But I didn’t get the NTRIP Client of the ESP32 XBEE up and running.
I configurated the Board as a Rover (simpleRTK2B_FW113_Rover_1Hz-00.txt)
The Board is on firmware 1.13
WIFI ist set up fine.
The /log.html shows that the ESP successfully connect to the service, but it will be disconnected after 10 seconds (and reconnects after that).

40
11:44:12.475ms
INFO
NTRIP_CLIENT
Connecting to http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

41
11:44:12.565ms
INFO
NTRIP_CLIENT
Successfully connected to http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

42
11:44:22.557ms
WARN
NTRIP_CLIENT
Disconnected from http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

43
11:44:22.578ms
INFO
NTRIP_CLIENT
Connecting to http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

44
11:44:22.660ms
INFO
NTRIP_CLIENT
Successfully connected to http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

45
11:44:32.657ms
WARN
NTRIP_CLIENT
Disconnected from http://www.sapos-nw-ntrip.de:2101/VRS_3_4G_NW

Any idea what could be the reason for that?

As far as I know, SAPOS needs some Data before ist responds with RTK-Corrections.

The NTRIP-Client section of the ESP32 shows only incoming traffic: NTRIP client 2.1kB in (0B/s) / 0B out (0B/s)
UART shows only outgoing traffic: UART (main communication) 0B in (0B/s) / 6.0kB out (15B/s)
The LED “GPS > XBEE” seems to be permanently off.
is that OK?
Thank you for any idea. I’m new to the topic and very much appreciate your products.
Thanks a lot.
Christoph

1 Answers
Christoph Krebs answered 2 weeks ago
Sorry, found the solution for that case:

The NTRIP Client of the ESP32 XBEE did not get any GPS information.
That’s why the NTRIP-Client section of the ESP32 showed only incoming traffic and the LED “GPS > XBEE” was permanently off.
Solution:
Open “Messages View” (F9) in u-center and navigate to UBX > CFG > PRT
For the “Target” “2 UART-2” check “Protocol out”. It should be set to “1 – NMEA”.
Save the Configuration to the board (UBX > CFG > CFG  “Safe current configuration” and click “Send” on the bottom left.
Now the ESP32 XBee Configuration Backend schould show incomming and outgoing traffic and the LED “GPS > XBEE” should blink.

Ardusimple
Staff replied 2 weeks ago

Thanks for sharing your solution! Will be very useful for other users.