TopNET Unlimited Licence – 12 Months

The TopNET Unlimited Licence – 12 Months provides access to Topcon's TopNET Live GNSS correction service, giving compatible GNSS equipment the real-time correction data required for high-accuracy positioning.

Standard GNSS positioning can be affected by atmospheric conditions, satellite geometry, signal blockage and other sources of error. A GNSS correction service helps compensate for these errors, allowing professional users to achieve the centimetre-level positioning required for surveying and construction applications.

Topcon describes TopNET Live as a real-time GNSS correction service designed for applications including surveying, construction, GIS and mapping.

What does the TopNET Live licence provide?

Your 12-month TopNET subscription gives you continued access to Topcon's GNSS correction infrastructure, including:

• Access to the TopNET Live GNSS correction network
• Real-time GNSS correction data
• Network RTK corrections for compatible equipment and services
• Correction data delivered to your GNSS rover
• 12 months of service access
• Suitable for professional surveying and construction applications

TopNET Live uses GNSS reference stations with precisely known positions to help calculate positioning corrections. These corrections are transmitted to compatible GNSS receivers, allowing them to determine their position much more accurately than they could using standalone satellite positioning.

Read our guide: Why Do You Need an Annual TopNET Correction Licence?

Topcon currently states that its Realpoint Network RTK correction service can provide positioning accuracy of approximately 2 cm, with initialisation taking seconds where TopNET Live network coverage is available.

Suitable Applications

A TopNET Live correction licence is suitable for applications where reliable, high-accuracy GNSS positioning is required, including:

• Land and engineering surveying
• Construction site setting out
• Foundation and structural setting out
• Grade checking
• Volume calculations
• Topographical surveys
• As-built surveys
• Utility surveying
• Machine control applications
• General RTK GNSS positioning

What happens when my TopNET licence expires?

Your GNSS receiver may still be able to receive satellite signals, but once your TopNET subscription expires you will no longer have access to the subscribed TopNET correction service.

This means you cannot rely on TopNET to provide the real-time correction data required for high-accuracy RTK positioning until the service is renewed.

For businesses that depend on GNSS equipment for day-to-day surveying or construction work, keeping the licence active helps avoid unnecessary downtime when accurate positioning is required.

12 Months of TopNET Live Access

This product provides a 12-month TopNET Unlimited Licence.

It is ideal for contractors, surveyors, engineers and utilities teams who regularly use compatible GNSS equipment and require continuous access to a professional correction service throughout the year.

Please contact Design & Survey if you are unsure whether this TopNET licence is suitable for your GNSS receiver or existing subscription before purchasing.