POSTSCRIPT: So we discovered on switching off everything (after stopping and disconnecting the base first) that we go back to square one again with the same problem re-emerging on restarting the base-rover machine, and the controller waits for a RTCM signal to be passed with none being apparently sent - even though the tx on the radio is flashing. We then stopped and switched off everything (again - for the nth time) and swapped the T2s (as base and rover - un- and re-pairing them using Nethub). Lo and behold the base-rover works beautifully on restarting only to loose the plot when you switch off everything and restart. No settings are changed in the interim (of course). We are actually starting to get rather fed-up. We have spent many many many hours with this sytem, and it's one thing after the next. I have a lot of other things to be doing besides this. This is not sustainable. What to do? Thx.
No RTCM data being passed from Base to Rover (via UHF radio)
- Thread starter AndrewW
- Start date
Hi Matt,
Herewith - screenshots of when the system is working and not working.
Thanks and regards,
Andrew W
Herewith - screenshots of when the system is working and not working.
Thanks and regards,
Andrew W
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Phillip Lancaster
Active Member
When the system is not working you have it on narrow band on the base and wide band on the LS (12.5 to 25) then they both are on (12.5 to 12.5) on the working.
Hi Philip, well spotted. The weird thing is that the settings for the radio are selected as 12.5KHz on the UHF options - so I can't explain why the 25KHz happens - I certainly didn't select it, and on the Base-Rover set-up screen, it's showing 12.5Khz... as selected. So, I am not sure what is going on.
Phillip Lancaster
Active Member
Delete your setup and make a new profile.
So, I reset the system group as well as the general & action groups on the System Restore screen. This results in the Victor-LS behaving normally (once one has checked and re-entered the settings where needed), but only until you swtich off the equipment. On restarting the Victor-LS. the Base-Rover won't work until you reset all the groups again, at which point it works fine. In addition, strangely, the camera previously was not working, but now is. If I can install a Hard Recovery Image for the Victor LS, I will, but the IMG file using the tool seems not to be working on my laptop (which is a virtual windows set up on a Mac, which may explain why)
Hi - if there is a JAVAD team member there who might be able to advise as to why it's necessary to reset System, General and Action groups each time we start the Victor LS in order for the RTCM signal to passed and the base-rover to work, that would be great. This is the only reliable way of getting our system to work. Perhaps there is a setting we are missing that causes this? Or perhaps it's a software bug - in which case, how to solve this? Thanks, Andrew W
I carried out a hard reset of the Victor-LS and the same problem persists... furthermore, the UHF radio receiver on the Victor sometimes will not turn on ... despite repeated attempts - and then suddenly it decides to behave. All other radios (except bluetooth) are off. Please could I have some support and feedback. We are wasting a lot of time. Thanks, Andrew W.
This issue was fixed in a recent update (see https://support.javad.com/index.php?threads/victor-ls.3434/).
If you are not receiving corrections when the base radio is broadcasting (as indicated by "OK" by the transmit icon in Base/Rover Setup and the TX light flashing on the radio) you should cycle through the General Group configuration screens (Setup > Edit General Group), confirm that "RTK Corrections" is set to "Internal UHF" and continue to press Next until you see the screen that displays "Done!". I think this should resolve your problem. If this does not work, clear the NVRAM on the rover receiver, reboot the Victor-LS and then cycle through these setup screens again.
Thanks for your reply: the settings are correct as you outline (and we have to check them each time we start the Victor because we are reseting the System, General and Action groups on every start-up). We will reset the NVRAM on the T2 rover as well tomorrow. Will that stop us having to reset the System, General and Action groups each time? If the base-rover starts and the RTK correction is being passed, the system seems to work fine, and I am experimenting with data upsampling at 2Hz. It's just the hassle of having to reset everything each time, and fiddling around with repeated resets and restarts when the base-rover doesn't fire up properly. This does not work well when one is sending a team into the field that want to get the job done and are not at all partial to idiosyncratic equipment behaviour.
The profiles and settings do not need to be reset. You just need to cycle through the General Group settings until a fix for this issue is implemented. I find that currently the corrections from the internal UHF radio in the Victor-LS are not being sent to the rover until cycling through the General Group settings. Even if nothing needs changed in these settings, you still need to cycle through them.
jack newsome
Member
What screen is this ID info on?
Thanks
Phillip Lancaster
Active Member
Tap on the radio signal icon at top of screen on most screens will bring you that info.
Base ID is also shown in Base/Rover Setup.
Matt, we cycled through the General Group settings as you suggested, but that didn't work. We really do have to reset System, General and Action Groups each time before we shut down the Victor-LS, so that the next time we start it, the Base-Rover RTK correction is passed. This is the only reliable way for us to use the Victor-LS.
On what I suspect is a related but different issue, we are getting some additional strange behaviour with the Victor-LS - with the rover not holding a fix reliably, and often moving to float, despite a good radio signal seemingly and almost no loss of RTK correction - with it sometimes spontaneously jumping to CDF. Can you think of why this might be the case? We can't figure out why the accuracy is jumping about as much as it is.
On what I suspect is a related but different issue, we are getting some additional strange behaviour with the Victor-LS - with the rover not holding a fix reliably, and often moving to float, despite a good radio signal seemingly and almost no loss of RTK correction - with it sometimes spontaneously jumping to CDF. Can you think of why this might be the case? We can't figure out why the accuracy is jumping about as much as it is.
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If this occurs after pressing start, it is by design for the engines to reset.
Did you clear the NVRAM on the rover?
jack newsome
Member
Matt,
What happens when the NVRAM is cleared in the LS and in the T2? (is this something that should be done on a regular basis?)
What happens when the NVRAM is cleared in the LS and in the T2? (is this something that should be done on a regular basis?)
This clears the settings with the exception of the WiFi settings in the receiver. It only needs to be done if the receiver seems like it is not working properly.