Qtalis

Qtalis Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Qtalis, Surveyor, Zone B, 6th Floor, Building 1, No. 618 Chengliu Middle Road, Jiading District, Shanghai.

High-Precision Positioning Made Possible
🛰️ GNSS Modules • Receivers • Antennas
📍 Centimeter-level accuracy for real-world applications
🔧 Built on technology from ComNav Technology
🔔 Follow for GNSS insights & product updates

Can GNSS achieve high-precision positioning without a local base station? 📡That’s where PPP (Precise Point Positioning) ...
13/08/2026

Can GNSS achieve high-precision positioning without a local base station? 📡

That’s where PPP (Precise Point Positioning) comes in.

Learn how PPP works, how it differs from RTK, why precise orbit and clock products matter, and why convergence time is essential.

👉 Read the full blog to explore PPP and high-precision GNSS:
https://www.qtalisgnss.com/blogs/gnss-guides/what-is-ppp-gnss

Learn what Precise Point Positioning (PPP) is, how PPP enables high-precision GNSS positioning without a local base station, and how it differs from RTK.

11/08/2026

Long Range. Low Power. Easy Integration.

The Qtalis U70 LoRa Datalink Module is designed to deliver reliable wireless communication for GNSS and precision positioning applications.

📡 LoRa technology
📶 410–470 MHz
🔄 TX/RX mode
⚡ Low power consumption
📏 Compact 30 × 30 mm SMD design

Ideal for surveying, UAVs, robotics, precision agriculture, and more.

Watch the video to discover the U70: https://www.qtalisgnss.com/products/u70-datalink-module

Can single-frequency RTK still deliver centimeter-level accuracy? 📡Yes — but only in the right conditions.Our latest blo...
05/08/2026

Can single-frequency RTK still deliver centimeter-level accuracy? 📡

Yes — but only in the right conditions.

Our latest blog explores:

✓ Where single-frequency RTK works best
✓ Its key limitations
✓ When dual-frequency RTK is the better choice

The right GNSS technology depends on the environment, application, and reliability requirements.

Read more about single-frequency RTK performance and limitations:
https://www.qtalisgnss.com/blogs/gnss-guides/single-frequency-rtk-applications-limitations

03/08/2026

Dual-Antenna Heading. Centimeter-Level Positioning.

Meet the K922 GNSS Module — built for reliable positioning in autonomous systems.

Featuring:
✓ Dual-antenna heading for accurate orientation
✓ Centimeter-level positioning with GNSS/INS navigation
✓ Built-in high-precision IMU with CAN & Ethernet connectivity

Designed for UAVs, robotics, precision agriculture, and intelligent transportation.

Explore more: https://www.qtalisgnss.com/products/k922-gnss-module

Fixed → Float?Why does RTK lose fix?RTK stability can be affected by:• Signal quality & multipath• Antenna setup• Correc...
30/07/2026

Fixed → Float?

Why does RTK lose fix?

RTK stability can be affected by:

• Signal quality & multipath
• Antenna setup
• Correction interruptions
• RF interference

Our latest GNSS Insights explores the common causes of RTK instability and practical troubleshooting tips.

Read more: https://www.qtalisgnss.com/blogs/gnss-guides/rtk-fix-instability-troubleshooting

Learn why RTK loses fix, including common causes such as multipath, poor satellite visibility, correction interruptions, antenna issues, and practical troubleshooting methods.

Meet the new Qtalis K922 GNSS Module 🚀Compact, powerful, and built for precision.Powered by QC7820 SoC, K922 delivers:✨ ...
27/07/2026

Meet the new Qtalis K922 GNSS Module 🚀

Compact, powerful, and built for precision.

Powered by QC7820 SoC, K922 delivers:
✨ Full-constellation GNSS positioning
✨ GNSS/INS fusion with built-in IMU
✨ Dual antenna heading support
✨ PPP services & flexible interfaces

Designed for UAVs, autonomous systems, surveying, precision agriculture, and machine control.

Explore high-precision positioning solutions with Qtalis: https://www.qtalisgnss.com/products/k922-gnss-module

Precision that keeps you moving. 📍The Qtalis M30X combines high-precision GNSS and INS technology to deliver reliable, c...
22/07/2026

Precision that keeps you moving. 📍

The Qtalis M30X combines high-precision GNSS and INS technology to deliver reliable, centimeter-level positioning—even when GNSS signals become challenging.

Built for autonomous driving, robotics, and smart mobility.

Learn more: https://www.qtalisgnss.com/products/m30x-gnss-ins-receiver

What makes RTK go from Float to Fixed?Behind every RTK Fixed solution is integer ambiguity resolution.GNSS receivers do ...
21/07/2026

What makes RTK go from Float to Fixed?

Behind every RTK Fixed solution is integer ambiguity resolution.
GNSS receivers do not directly “fix” the position. They resolve the hidden carrier cycles inside carrier-phase measurements — unlocking centimeter-level positioning.

In our latest GNSS Insights article, we explore:
• How GNSS ambiguity resolution works
• Why cycle slips and multipath affect RTK fixing
• How GNSS/INS improves positioning reliability

From surveying to robotics and autonomous systems, reliable RTK Fix is the foundation of high-precision positioning.

Read the full article on Qtalis Blog: https://www.qtalisgnss.com/blogs/gnss-guides/gnss-ambiguity-resolution-rtk-fix

Learn what GNSS ambiguity resolution is, how RTK fix works through integer ambiguity resolution, and why carrier-phase processing is essential for high-precision positioning.

High-precision GNSS is entering a new era.Multi-frequency technology can remove most ionospheric errors — but what about...
16/07/2026

High-precision GNSS is entering a new era.

Multi-frequency technology can remove most ionospheric errors — but what about the remaining effects?

Higher-order ionospheric delays, including second- and third-order terms, are becoming increasingly important for applications requiring the highest levels of positioning accuracy.

Discover how advanced GNSS correction models help push precision further: https://www.qtalisgnss.com/blogs/gnss-guides/higher-order-ionospheric-effects-gnss

14/07/2026

🚗 High-precision positioning meets intelligent navigation.

Meet the M30X GNSS/INS Receiver — built for accurate, reliable, and continuous navigation.

Featuring:
✨ Full-constellation GNSS support
✨ GNSS + INS fusion technology
✨ Automotive-grade design
✨ Vantix remote management

Designed for autonomous driving, smart transportation, robotics, and intelligent logistics, M30X delivers reliable positioning even in challenging environments.

The future of intelligent positioning starts here🚀: https://www.qtalisgnss.com/products/m30x-gnss-ins-receiver

Address

Zone B, 6th Floor, Building 1, No. 618 Chengliu Middle Road, Jiading District
Shanghai
201801

Opening Hours

Monday 08:30 - 18:00
Tuesday 08:30 - 18:00
Wednesday 08:30 - 18:00
Thursday 08:30 - 18:00
Friday 08:30 - 18:00

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