Tallysman HCS885EXF Smart Embedded Helical GNSS Antenna

Tallysman HCS885EXF Smart Embedded Helical GNSS Antenna for High Accuracy UAV

The HCS885EXF helical GNSS smart antenna is an embedded multi-band (L1/L5), multi-constellation integrated GNSS receiver/antenna with RTK corrections and PointPerfect® PPP-RTK augmentation compatibility.



The HCS885EXF is capable of providing sub 1-meter accuracy stand-alone, sub 1 cm accuracy with RTK corrections and sub 10 cm accuracy with PPP-RTK corrections. It is based on the Tallysman HC885SEXF antenna, making it lightweight and very suited for unmanned aerial vehicle (UAV) applications that require precise location and precise heading.

The HCS885EXF incorporates the latest generation multi-band (L1/L5) GNSS receiver with a precision-tuned multi-band Tallysman antenna (L1/L5) that provides excellent axial ratios and operates without the requirement for a ground plane. The state-of-the-art GNSS receiver supports concurrent tracking of all four major constellations (GPS, BeiDou, Galileo and GLONASS) in multiple frequency bands. The concurrent multi-band (L1/L5) access to all four satellite constellations improves the receiver’s convergence capability to deliver a quick, precise and reliable position solution.

The multi-band architecture is the most effective method for the removal of ionospheric error, and the L5 band provides superior interference and multipath performance vs. L2. The HCS885EXF employs Tallysman eXtended Filter (XF) technology, which mitigates near-band and out-of-band interference such as LTE signals and their harmonics, enabling operation in the most challenging deployments.

The HCS885EXF offers support for corrections services (PPP-RTK – PointPerfect) or RTK base/rover corrections, allowing performance optimization according to an application’s unique requirements. The HCS885EXF can be configured as a multi-receiver pair for moving base precise heading applications. HCS88EXF mounts flush. Control, corrections and position output are delivered over a 6 pin JST receptacle connector inset into the base.


  • Improved noise immunity with multi-band GNSS receiver
  • Excellent RH circular polarized signal reception
  • Multi-band receiver has high immunity to ionospheric errors
  • Lightweight precision-tuned helical element with excellent axial ratios and Tallysman eXtended Filtering
  • Extreme lightweight (8 g) embedded packaging


  • Exceptional position performance (Stand-alone or corrected)
  • PPP-RTK: PointPerfect® Augmentation
  • RTK Base/Rover configurations and Moving Base Heading
  • CMOS signalling with RS232 option
  • Industrial-grade IP67 enclosure
  • Surface Mount for embedded applications
  • 6-pin JST port for Pixhawk standard compatibility


Tallysman Wireless offers a warranty of 1-3 years on all of it’s products. The warranty ensures that the products are free from defects of materials or workmanship and conform to Tallysman’s specifications under normal use. Embedded antennas are covered by a one (1) year standard warranty. All housed antennas and accessories (inline amplifiers, splitters, and bias tees) manufactured after January 1, 2020 are covered by a three-year warranty. The warranty is covered in more detail on the Tallysman Wireless Warranty page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for Tallysman Systems and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.


The HCS885EXF smart embedded helical GNSS antenna from Tallysman is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

Part Number: 35-HCS885EXF-xx