Hello all,
Using the QGNSS v2.2 software, I configured the 580P to output both NMEA HDT and THS sentences but they are both empty. I tried configuring several different free NTRIP clients in QGNSS but they all just respond with the list of servers and just disconnect. How do I get heading out of the device? It is hooked up to two antennas.
Have you tried an alternate cable?
Do you have account credentials for the NTRIP servers you’re trying to connect to?
It is not the cable. I can communicate with board correctly using QGNSS software. I tried both igs-ip.net and earthscope.org, as well as rtk2go.com. The first two I signed up with a free account. The last one only needs an email. All reply with something like the attachment.
NTRIP client log.txt (78.9 KB)
I was able to get NTRIP data into QGNSS v2.2, you were right, incorrect login info for one of the servers.
I can see something being transmitted to the board but I can’t decipher it.
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How do I successfully pass the NTRIP data to the board?
OK, it seems that the board entered RTK Float. It is still not outputting a heading in the THS or HDT sentence though.
The mystery/garbled characters are almost always a baud rate error, double-check the setting and/or change it
This is what I mean by not outputting heading info:
[19:01:19.918 Uart Rx:0014 B] $GNHDT,,T*05
[19:01:19.918 Uart Rx:0014 B] $GNTHS,,V*10
Did U enabled ```
$PQTMCFGMSGRATE,W,PQTMTAR,1,1*09
It is enabled.
Check for a fw update…maybe resolve issue.
Hi @ian5142 ,
As @bamarcant suggests, please check your firmware version. With the LG580P03AANR01A05S_SH_BETA1017 firmware, I see PQTMTAR and GNTHS enabled by default. I can optionally enable HDT.
I’ve added better firmware update instructions here. The firmware can be downloaded here. The trick is to start the update with the green arrow, and then reset the LG580P with a jumper wire. The LG580P seems to need an actual hardware reset. The QGNSS reboot button wasn’t working for me.
After the upgrade, you can reduce the fix rate from 10Hz to a more sensible 1Hz with:
$PQTMCFGFIXRATE,W,1000*59
$PQTMSAVEPAR*5A
$PQTMSRR*4B
You can check the firmware version with:
$PQTMVERNO*58
To enable HDT:
$PQTMCFGMSGRATE,W,HDT,1*13
With HDT enabled, I see:
[08:15:28.112 Uart Rx:0077 B] $PQTMTAR,1,081528.000,4,,0.946,0.069448,,45.702449,0.329947,,0.174387,35*57
[08:15:28.112 Uart Rx:0020 B] $GNHDT,45.702,T*1F
[08:15:28.112 Uart Rx:0020 B] $GNTHS,45.702,A*1D
My antennas are ~1.0m apart and oriented NE-SW. If I swap my antennas, I see:
[08:16:59.112 Uart Rx:0079 B] $PQTMTAR,1,081659.000,4,,0.938,-0.078422,,225.413081,0.331815,,0.174473,35*4E
[08:16:59.112 Uart Rx:0021 B] $GNHDT,225.413,T*28
[08:16:59.112 Uart Rx:0021 B] $GNTHS,225.413,A*2A
This is all without NTRIP. The LG580P is stand-alone.
I hope this helps,
Paul
I was able to get it working the way I want. I just didn’t wait long enough for the module to lock on to enough satellites. It outputs HDT sentences reliably at 20Hz. I turned off all of the other sentences except the default PQ one. I am also only using GPS and Galileo not GLONASS or BeiDou.