Leica Captivate Static Survey Settings - Updated 2022

[@bryarabdulxalaq5783]

If the observation time is more than battery time Changing battery dose have any affect on the quality of the data and after changing battery can you continue observing on the same point? Thx

[@surveyorpop]

You can continue to observe however the data set will be broken when the battery dies. I would recommend purchasing an external battery and cable for longer sessions. Your local dealer should be able to provide options.

[@thesiborg]

Hey man love your explanations but I'm confused by the "5min + 1min per km" - per km from what? Is there a baseline being measured? I thought this was for a single gs18 logging ie no corrections from a base station or CORS

[@surveyorpop]

Yes, this is for the baseline being measured / post processed. This can be between units on a project site or working within a CORS network. With modern equipment and processing software this probably could be reduced, however, if you take the time to drive to a remote site to collect GNSS measurements you want to ensure that you don't have to make a repeat visit because of insufficient data.

[@thesiborg]

Ok so let me see if I've got this right: if I was using this static logging session to establish a site CP, I would post process the raw data using corrected data logged with a 2nd receiver over the same time period, setup over a point with known coordinates. And the baseline being measured is the distance between the two receivers? So if they are say 10km apart, the minimum logging time should be 15mins?

[@surveyorpop]

@@thesiborg Yes, that is correct. Sorry I somehow missed your second question.

[@salanamu5750]

Hi Sir, this tutorial shows no rovers to be used to do corrections but only base. Could it mean we can upload the data in OPUS for data to be processed? Sir, i am using one gs18 currently and doing daily rtk surveys. Thanks

[@surveyorpop]

Good morning, this configuration is for Static data collection. In this configuration the data can be uploaded to Leica Infinity software. From there the data can be post processed (concurrent data from two receivers required) in Infinity. Data from a single rover can be converted to Rinex in Infinity and submitted to OPUS for processing.

[@salanamu5750]

@surveyorpop Hi Sir, thank you. That means I will use one base with two rovers to run ppk, or rapid static and process in leica infinity. Also, your video means to me is that we will measure points using two rovers every 5 minutes +1 per km. Or else, Sir, could you please make another video for actual field work. This video tells us how we could configure it into static, but could you also display this method using one base with one or two rovers in the actual field, and we can watch. It could be more helpful. Thanks

[@surveyorpop]

@@salanamu5750 For static / rapid static observations all units are essentially functioning as rovers. You need a minimum of two GNSS receivers collecting data concurrently for static / rapid static operations. With two receivers in operation you can process one baseline. With three receivers operating simultaneously you will have three baselines to process. The "rule of thumb" for baseline observation times is simultaneous measurement for 5 minutes + 1 minute per kilometer of baseline length. Some receivers and software will correctly process the baselines with shorter observation times. However, in my experience attempting to shorten observations times often results in return trips to the field, especially when collecting data in in difficult locations. Each manufacturer will have a recommendation of baseline length where observation times should go longer (two to four or more hours). Also, project or government requirements may specify longer observations. As with any surveying related measurements good procedure and building cross checks into your measurements is a must.

[@salanamu5750]

@@surveyorpop Hi Bro, thank you very much. I got your point. Very clearly explained. Thank you once again

[@TechWizeGuy]

I use Leica equipment and softwarere daily and after 2yrs I can safely say I hate it! Leica sucks the big D when it comes to making well thought out user friendly software...

[@surveyorpop]

Thanks for being willing to honestly share your opinions.