Problem with Base mode in the LC29HBA and LG290P(03) modules setup

Hi,
I recently purchased the LC29HBA and LG290P(03) modules and tried testing them as Rover+Base (and vice versa) setup. But the modules remain in floating state for ~60s with ~3m baseline before resolving the ambiguity and fixing.

Here are the commands I used, would you please help me diagnose if the problem is the setup process itself?

  1. Base Setup:

$PQTMRESTOREPAR*13 // Restore Parameters
$PQTMGNSSSTOP*09 // Stop Gnss
$PQTMCFGFIXRATE,W,1000*59 // Set fixrate (1Hz)
$PQTMCFGRCVRMODE,W,2*29 // Set to Base mode
$PQTMSAVEPAR*5A // Save
$PQTMSRR*4B // Reset ( LG290P ) $PAIR023*3B // Reset ( LC29HBA )
$PQTMCFGSVIN,W,2,0,0,X,Y,Z*Checksum // Set base location, ARP (ECEF)
// Save, Reset
$PQTMCFGRTCM,W,4,0,5,07,06,1,0*34 // LG290P ( set RTCM MSM4 output )
$PAIR432,0*23 // LC29HBA ( set RTCM MSM4 output )
// Save, Reset
$PAIR436,1*26 // LC29HBA (output Ephemeris enable)
// Save, Reset, Enable GNSS engine

  1. Rover Setup ( both )

$PQTMRESTOREPAR*13 // Restore Parameters
$PQTMGNSSSTOP*09 // Stop Gnss
$PQTMCFGFIXRATE,W,1000*59 // Set fixrate (1Hz)
$PQTMCFGRCVRMODE,W,1*2A // Set to rover mode
// Save and reset

The firmware version for LC29HBA: LC29HBANR11A06S_CSA4
The firmware version for LG290P(03): LG290P03AANR01A04S

Another base model we used previously (name redacted) achieves fix in <5s under same conditions for both modules in rover mode.

Thank you for your time!

Need to activate rtcm 1005 if not done…

Hi @bamarcant, the specification says

PQTMCFGRCVRMODE

2: Base station. When set to this mode, the
receiver will automatically disable NMEA message
output and enable RTCM3 MSM4 and
RTCM3-1005 message output.

I believe this is not the issue

Hi @sulavvv, from experience in good environment and right setup the convergence time should be 5-10 seconds. Could you provide me next info.

How did you connect base and rover?
Are you using our EVBs or your own design?
Could you describe the environment where you are doing the test?
Do you get same result when using RTK server for the rover?

Ok, checked on LG290 with LG290P03AANR02A01S and 1005 is present but not ephe…
but on LC29H (not verif.) I remember that the $PAIR434,1*24 ==> set RTCM3.x output with message type 1005 need to be sent.
Regards