GCP GPS

Rick_Dobbins · July 14, 2015, 3:45am

Is there a recommended terrestrial GPS model experienced Pix4Ders use to generate GCPs? I see survey grade GPSs costing anywhere from $1000 to $5000 USD.

Mark_Blacklin · July 24, 2015, 4:07pm

The higher the accuracy of the GCPs, the higher the accuracy of the Pix4D model. Most handheld GPS units are not much help - I would recommend having your GCPs surveyed with a survey-grade GPS units, either an RTK unit, or VRS at least.

Guy_Midkiff · February 2, 2016, 3:58pm

Can anyone speak to entry level survey-grade GPS units? Which ones that will do the job, without having to mortgage the farm?

Thanks.

Fay_king · February 2, 2016, 5:55pm

Guy,

See my post on RTK GPS:

https://community.pix4d.com/t/4703-Discussion-on-RTK-GPS-Systems

A $2,000 RTK kit is available here:

http://tersus-gnss.myshopify.com/products/rtk-bundle-915mhz

If you have a Virtual Reference Network in your area, you may get by with 1 receiver.

Guy_Midkiff · February 3, 2016, 5:39am

Thanks Ryan. The boards look pretty intimidating. Didn’t get any hits on YouTube regarding process process.

…A journey of a thousand miles starts with the first step…