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.

APEKS FAQ | How to Import Point Coordinates into Your RTK Controller Using ApekSurv

2025-07-01

How to Import Point Coordinates into Your RTK Controller Using ApekSurv

Importing point coordinates into your RTK controller is a quick and straightforward process when you follow the right steps. Whether you're setting up control points or preparing for staking, this guide will walk you through how to do it using the ApekSurv software.

We'll divide the process into two parts:
① Preparing and transferring the CSV file on your computer
② Importing the CSV file on your RTK controller

🖥️ Part 1: Prepare and Transfer the CSV File on Your Computer

Create a CSV file on your computer using Excel or another spreadsheet program.
Enter the data in the correct order:
- Point Name
- Northing
- Easting
- Elevation
Save the file in CSV format (Comma-Separated Values).
Right-click the saved file and select Copy.
Open the ApekSurv folder on your computer. This folder should be linked or synced with your RTK controller.
Inside the ApekSurv folder, find and open the Import folder.
Right-click inside the Import folder and select Paste to copy your CSV file here.

📲 Part 2: Import the Data on the RTK Controller

Turn on your RTK controller and open the ApekSurv software.
Navigate to Data > Import Data.
Select CSV as the file format to import.
Click Next, then browse to find the CSV file you just pasted in the Import folder.
Select the file and click OK to start importing.
After the import finishes, check the Point Database to verify all points have been successfully imported.

✅ That's It!

Your coordinate data is now loaded into the RTK controller and ready to use for your surveying or staking tasks.

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