Hello,
So I have a trimble 5700 base station set up on a control point that was surveyed in in UTM zone 10N, Meters. The client now needs half the job done in feet. I thought you could start the base station in just about anything, and it would work. I need to start different jobs within survey controller, but I keep getting "waiting for satellites" message whenever im in a job that isnt the same as the base station. Any help would be great.
No idea what software you are using to make this happen. In any case, why can't you just do the survey in whatever system that works and convert it to feet when you are done?
Using Trimble Survey Controller. The base is started in UTM 10N Meters. It works with 2 other rovers, just cant make the 3rd work. Im not very experienced and I cant convert, because we are using 3 different controllers, and one of them is being loaned to the client for QC purposes. Also, im not a real surveyor, so my experience is limited. This is for an environmental project. Thanks again.
Joe is right.
Don't dink with the settings. Just do the work then convert it later. Should take about 2 seconds. You are likely to mess something up by trying to do UTM in feet then you have a mess that will take a lot of head scratching to straighten out.
Let the controller work in its native setting for the zone (meters) then convert to feet later. Most likely to work best.
I am confused here. Please explain your situation better. You should be able to start the base in any known coordinate system. I've started with LAT/LONG, State Plane and then started my rover units in other systems. THe key is setting up the job on the controller. The rover does the converting of the base location data to get your corrected positions.
That is what I thought, I could start the base in any system, and the 5700 rover would do the conversion. Ill try to restart the job, and go from there, take some good notes, and post them up later. Thanks for the help.
The biggest blunder you could make is having the data collector job setup with the wrong coordinate system and then using that data collector to start your base station. Keying in your known base station coordinates (apparently UTM 10 N meters) into the wrong system (such as a job setup to use UTM 10 N feet) will result in the base station having the wrong known coordinates (because the data collector is actually converting the UTM coordinates to latitude and longitude and that is what is sent to the base station). Everything you collect will be wrong. Some GPS equipment is better than others about detecting these type of blunders (ie., if the latitude and longitude you tell the base station to use is way different than what the base station is currently measuring it's realtime position as, it will give you an error).
As long as you start your base with the correct coordinates (that is, somehow get the correct known latitude and longitude sent to the base station), the coordinate system you collect the data in isn't really that important. There are tools available to convert between UTM, state plane, feet and meters, etc.
And now another can of worms, are you trying to record accurate elevations? Do you know if you are using the correct geoid model?
> The biggest blunder you could make is having the data collector job setup with the wrong coordinate system and then using that data collector to start your base station. Keying in your known base station coordinates (apparently UTM 10 N meters) into the wrong system (such as a job setup to use UTM 10 N feet) will result in the base station having the wrong known coordinates (because the data collector is actually converting the UTM coordinates to latitude and longitude and that is what is sent to the base station). Everything you collect will be wrong. Some GPS equipment is better than others about detecting these type of blunders (ie., if the latitude and longitude you tell the base station to use is way different than what the base station is currently measuring it's realtime position as, it will give you an error).
>
> As long as you start your base with the correct coordinates (that is, somehow get the correct known latitude and longitude sent to the base station), the coordinate system you collect the data in isn't really that important. There are tools available to convert between UTM, state plane, feet and meters, etc.
>
> And now another can of worms, are you trying to record accurate elevations? Do you know if you are using the correct geoid model?
My experience with Trimble 5700, is the base will not start up and will warn you if your coordinates are not within 30'± of actual location.