
The HCS885XFSDK Smart GNSS Helical SDK is the best way to fast track precise location and heading in your project. The L5 enhanced signal architecture with stronger broadcast signal offers more precise standard localization and improved multi-path mitigation while operating in an ITU/ARNS aviation band with regulatory interference protection. The SDK includes one* HCS885XF Smart GNSS Precise Heading Helical Antenna with serial to USB bridge to connect to your PC. TruPrecision software simplifies the User Interface to the antenna’s GNSS receiver, and provides extras such as logging tools, GNSS signal strength graphs and message routing for sharing RTCM between base and rover antenna pairs across the internet. It also includes a 6 month complementary access to Swift Navigation’s Skylark Cx Corrections, with an easy process for quickly applying corrections (RTK or PPP-RTK) to the antenna. ROS2® drivers also available.

Swift Navigation’s Skylark® Precise Positioning Service is a global, cloud-based GNSS corrections service that delivers reliable precision continent-wide. Designed to meet diverse application needs, Skylark is available in three distinct variants—Skylark Cx, Nx RTK, and Dx—each optimized for specific use cases, ensuring the right balance of performance and practicality.
Skylark Cx is a PPP-RTK corrections service that delivers uniform centimeter-level accuracy across continents. With 3–7 cm accuracy and a fast convergence time of under 20 seconds, its performance remains consistent, regardless of distance from base stations—providing seamless accuracy at a national and continental scale.
Learn more about Skylark at https://www.swiftnav.com/products/skylark
HCS885XFSDK Smart GNSS Helical SDK includes:
- 1 x Tallysman 33-HCS885XF-49 Smart GNSS Precise Heading helical antenna with CMOS interface
- Tallymatics TruPrecision Application for Software Development and Verification
- 6 month trial subscription to the Swift Navigation Skylark Cx Precision Positioning service
- 1 x JST to USB cable
- Ordering Information:
- 33-HCS885XFSDK-SWNAV-4 (CMOS)
- 33-HCS885XFSDK-SWNAV-2 (RS-232)
The TruPrecison SDK application is a Windows application which provides an NTRIP connection to stream Skylark corrections to the HCS885XF Smart Antenna via USB, which also provides a Virtual COM Port to allow customers to connect their existing applications to the Tallysman HCS885XF Smart GNSS Precise Heading Antenna high precision “corrected” position data output. The position data may be either NMEA or UBX formatted messages. ROS2® Drivers are available for integration with ROS2 open framework projects.

ROS2® Drivers
https://github.com/Calian-gnss/calian-gnss-ROS2-drivers


The HCS885XFSDK Smart GNSS Helical SDK is the best way to fast track precise location and heading in your project. The L5 enhanced signal architecture with stronger broadcast signal offers more precise standard localization and improved multi-path mitigation while operating in an ITU/ARNS aviation band with regulatory interference protection. The SDK includes one* HCS885XF Smart GNSS Precise Heading Helical Antenna with serial to USB bridge to connect to your PC. TruPrecision software simplifies the User Interface to the antenna’s GNSS receiver, and provides extras such as logging tools, GNSS signal strength graphs and message routing for sharing RTCM between base and rover antenna pairs across the internet. It also includes a 6 month complementary access to Swift Navigation’s Skylark Cx Corrections, with an easy process for quickly applying corrections (RTK or PPP-RTK) to the antenna. ROS2® drivers also available.
Swift Navigation’s Skylark® Precise Positioning Service is a global, cloud-based GNSS corrections service that delivers reliable precision continent-wide. Designed to meet diverse application needs, Skylark is available in three distinct variants—Skylark Cx, Nx RTK, and Dx—each optimized for specific use cases, ensuring the right balance of performance and practicality.
Skylark Cx is a PPP-RTK corrections service that delivers uniform centimeter-level accuracy across continents. With 3–7 cm accuracy and a fast convergence time of under 20 seconds, its performance remains consistent, regardless of distance from base stations—providing seamless accuracy at a national and continental scale.
Learn more about Skylark at https://www.swiftnav.com/products/skylark
The TruPrecison SDK application is a Windows application which provides an NTRIP connection to stream Skylark corrections to the HCS885XF Smart Antenna via USB, which also provides a Virtual COM Port to allow customers to connect their existing applications to the Tallysman HCS885XF Smart GNSS Precise Heading Antenna high precision “corrected” position data output. The position data may be either NMEA or UBX formatted messages. ROS2® Drivers are available for integration with ROS2 open framework projects.
ROS2® Drivers
https://github.com/Calian-gnss/calian-gnss-ROS2-drivers
Specifications
Ordering Information:
- 33-HCS885XFSDK-4 (CMOS)
- 33-HCA885XFSDK-2 (RS-232)
Datasheet
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