What is the accuracy difference between Fixed and Float RTK?

Fixed RTK typically delivers ±8 mm horizontal and ±15 mm vertical accuracy. Float RTK carries ±300–1000 mm of positioning error depending on baseline length and atmospheric conditions.

Why does my RTK show Fixed but coordinates are still wrong?

Common causes are a datum mismatch (wrong coordinate system), an incorrect geoid model applied to elevation, or an antenna height entry error.

How do I know if multipath is affecting my survey?

Multipath typically shows as unstable repeated measurements — the same physical point measured three times gives results differing by 20–50 mm rather than the expected ±8 mm.

Can I survey during ionospheric storms?

RTK accuracy degrades during geomagnetic storms (Kp index above 5). For precision engineering or cadastral surveys, postpone sessions until the Kp index drops below 3.

What is the maximum reliable CORS baseline for centimetre accuracy?

Most CORS networks guarantee ±10–20 mm horizontal accuracy within 50 km of the nearest reference station. Beyond 70 km, deploy a self‑deployed base station within 15 km of the survey area.

Products Categories

AP10 GNSS is a Powerful and Cost-effective GNSS Receiver. It Is A Highly Productive Rtk For Surveying And Stakeout In Any Topographic, Mapping Or Construction Site Applications

AP30 Laser Dual-cameras RTK is a High-end GNSS Receiver That Integrates The Latest GNSS, Super IMU, Millimeter-Level Green Laser Technologies

AP50 Vision IMU-RTK GNSS Receiver Integrates The Advanced GNSS, lMU, And Dual-Camera Technologies

Global Vision Professional ApeksGnss ApekSurv Software Permanent License Code

ApekSurv Field Surveying Software

ApekSurv is fully functional as a field surveying software, equipped with complete work modes and necessary functions - projection/datum configuraion, GSM/radio/PDA CORS work modes, point survey/stake out/CAD sketch/COGO calculation and etc.

Product Details

Visual AR Stakeout

Through WiFi transmission, Apeksurv can transmit large amounts of image and video data in real time, and cooperate with visual RTK to achieve clear, intuitive and accurate visual AR layout functions.

Laser Surveying

Combined with laser-enabled RTK, the Apeksurv software enables seamless switching between laser surveying and pole surveying.

CAD Sketching & Stakeout

Detailed CAD sketching function, including line, polygon, spline, circle and etc. Each layer is editable. Support easy stakeout based on your CAD map.

Custom Survey Interface

Users can customize the information display content and measurement function menu according to their working scenarios to meet their own usage habits and needs.

File Sharing

All types of data in the project can be easily shared by scanning QR code or entering the sharing code, which is convenient for the transmission of various data between data collectors & surveyors.

AP80 Slices

AP20 Gnss Receiver

AP20AR Brochure EN

AP40Laser+ Gnss Receiver

AP60 Vision Gnss Receiver

Max5 Base Gnss Receiver

AP10 GNSS is a Powerful and Cost-effective GNSS Receiver. It Is A Highly Productive Rtk For Surveying And Stakeout In Any Topographic, Mapping Or Construction Site Applications

AP30 Laser Dual-cameras RTK is a High-end GNSS Receiver That Integrates The Latest GNSS, Super IMU, Millimeter-Level Green Laser Technologies

AP50 Vision IMU-RTK GNSS Receiver Integrates The Advanced GNSS, lMU, And Dual-Camera Technologies

APS1 Precision Handheld Rtk

Global Vision Professional ApeksGnss ApekSurv Software Permanent License Code