GPS RTK Surveying with one base and multiple rovers

In this video I show you how to use Trimble Access to Survey with one base and two rovers

[nateanderson]

You're in my Florida neighborhood! Enjoy the sunshine! Well more like rain 😅

[paulhaugen]

Up here in Minnesota, we use VRS for our base station. It works great for firing up the gps, tsc 7 and you’re ready to survey in under a minute. The problem is, sometimes the vrs base is many miles away, creating long baselines, and decreasing accuracies. I want to start using my own base again because I’m seeing .2’ to .4’ error with VRS, even at an airport, which is wide open. I haven’t used a RTK base for a long time because we’ve been spoiled using VRS. When you select “here” how close are you getting to the true position? Do you need to calibrate to a known point? What kind of range do you have with the r12i internal radio? Thanks for all your informative videos!

[robertl.johnston]

I didn't know it would pick up the base data on the second receiver, good to know

[СергейТарасов-чу]

Привет Роберт, хорошее видео, рад что ты выпускает новые интересные ролики

[zacklyons]

This is extremely informative, thank you for taking the time to explain all this. It sounds like you've ran into an issue we've had, and I hope you may be able to help.

The reason I've ended up here, is that we recently had a crew start the base a second time when doing this. I've never had a crew do it this way so I'm a little unfamiliar with what all it would affect. What I'm seeing in the data (two separate sites done the same way) is that it looks to be applying a scale factor of about 0.99995 to the first rover's data. Is there any way to correct this outside of reversing what I'm assuming is an applied scale factor?

I want to also note that when they started the base the second time, they keyed-in the coordinates for the base from the first data collector. I would expect a straight shift if they had done a here position again or mistyped the coordinate, but the apparent scale factor is new to me.

Edit* Had my scale factor reversed, the data I believe to be incorrect is shorter than true location.

[jimletzring]

People didn't know you can run multiple rovers with one base. I've been doing that since I started working with Trimble GPS in 94.

[danjakkarin]

May I inquire you to show how to setup one Rover as a repeater to extend the range for the second Rover?

[Chau-Y]

You need to buy the Trimble Tri-some upgrade to do that 😂

[robotsalmon]

can anyone tell me the range you can get with this setup just using the internal radio in the r12?

[nsikakobongeyakz]

thanks a lot, so the rover just listens to the frequency and that's all

[wolftrapper]

Hi Robert i got a question for ya. Im running the Tsc5 trimble but while doing a topo my shot points dont display in maps. Do you know how fix this thanks Cordell

[cjleongson]

Can i survey with 1 base, a rover or more, an an rtk drone? My purpose or what i think is i could address the problem when an rtk rover is under thick vegetation and the rover always floats.

[jorgealbertoherenaperez]

buddy you just saved my ass in Oaxaca MX with this video😂

[orlandograulau]

Hi how to download the maps I can not do it

[orlandograulau]

I have access on tablet Panasonic fz g1