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 Set Network Mode on Your RTK

2025-06-13

How to Set Network Mode on Your RTK: A Step-by-Step Guide

(And Why “Single” Status Isn't Always a Problem)

Have you ever turned on your RTK and seen the word “Single” staring back at you?

Don't worry — this doesn't always mean your device is broken. In fact, most of the time, it simply means one thing:
The work mode isn't set correctly.

In this blog, we'll show you how to properly set up Network Mode, which is the most common and convenient way to get your RTK working quickly and accurately.

RTK Has Two Work Modes

Before diving into the steps, let's understand your options. RTK devices generally support two modes:

Work Mode	How it Works	Common Use Case
Radio Mode	Base station broadcasts correction data via radio	Used when there's no mobile signal
Network Mode	RTK connects to an online base station via internet	Most modern job sites

In this article, we'll focus on Network Mode — the most popular and hassle-free option, especially when using APEKS devices.

What Is a CORS Base Station?

CORS stands for Continuously Operating Reference Station.
It's a permanent GNSS base station that collects satellite data and provides real-time correction information via the internet.

Here's why it's essential:

·Boosts accuracy from meters to centimeters
·No need to set up your own base station
·Works with NTRIP protocol over mobile internet

Note: Your RTK must be within the coverage area of a CORS base station, and you need an active account (usually with login credentials).

✅ Requirements for Using Network Mode

To successfully use Network Mode, make sure you meet the following:

1. Stable internet signal at your job site (4G SIM or hotspot)
2. Active access to a CORS base station (IP address, port, username, password)

How to Set Network Mode on APEKS RTK Devices

Setting Network Mode on an APEKS controller is quick and easy. Follow these steps:

Step	Action
1	Open the controller and go to the Device page
2	Choose Rover as your working role
3	Tap the Datalink field, then choose Phone Internet
4	Open the Parameter Settings page
5	In the Connecting Mode field, choose NTRIP
6	Enter the CORS information: IP, Port, Username, and Password
7	Tap OK at the bottom to save
8	Tap Get, then tap the Mountpoint field
9	Choose the correct Mountpoint for your region or project
10	Tap Start, then tap Apply

That's it! Your rover should now start receiving correction data.
After a few seconds, the positioning status should change from “Single” to “Float”, and finally to “Fixed” — meaning you're ready to start working.

Still Seeing “Single” on Older Devices?

If you're using an older RTK unit and it still shows “Single” even after setup, check the following:

·Is your CORS account still valid? (They often expire yearly)
·Did you enter the correct credentials (especially mountpoint)?
·Is your mobile internet working properly?

Recap: Key Takeaways

·“Single” usually means your RTK isn't receiving correction data yet.
·Network Mode is the most efficient way to work today — no extra equipment needed.
·CORS base stations provide accurate correction data via NTRIP.
·With APEKS devices, setup is fast and beginner-friendly.

Learn More About APEKS RTK Solutions

Thanks for reading!
If you found this article helpful, be sure to check out more tips, tutorials, and product details on our website.

Click the link below to send an inquiry and learn more about our products.
Send an inquiry-APEKS