This article summarizes frequently asked questions about Skylark.


What is Skylark?

Skylark™ is a cloud-based, high-precision GNSS data corrections service. Skylark delivers simple, fast positioning over the Internet for mass market automotive and autonomous vehicles.


Swift Navigation is known for affordable, high-accuracy receivers, why develop a cloud corrections service?

Skylark completes Swift’s end-to-end product offering by adding a cloud corrections service to its line of GNSS receivers and StarlingTM Positioning Engine. Unlike other corrections services that require radio antennas or are tethered to individual base stations, Skylark operates like a utility. Swift customers simply connect their device to power and the Internet or cellular data to get real-time positioning corrections for highly-dynamic GNSS applications, like self-driving cars.


How does Skylark fit into Swift’s goal of making GNSS affordable?

Skylark supports Swift’s vision of democratizing accessible, low-cost, high-precision GNSS. Not only are Swift receivers some of the lowest-cost, high-precision devices on the market, but Skylark is also very affordable.  Contact sales@swiftnav.com to get started with a free 60-day trial.


Is there a minimum/ maximum number of receivers that I need to have to sign up for Skylark?

No. From one to an unlimited number of units, Skylark has been designed for massive scale.


Where is the Skylark service available?

Skylark is currently available in the contiguous United States of America with plans for Europe, Asia and eventually, global expansion.


If an area is not covered by the Skylark Network today, how do I request coverage or receive notification of when an area of interest is covered?

Contact sales@swiftnav.com for more information.


Does Skylark work with non-Swift devices?

Skylark supports third-party GNSS receivers compatible with RTCM v3.2 over NTRIP. Such a receiver needs to support MSM5 messages and output NMEA GGA at 1 Hz.


Do my receivers require Internet connectivity to utilize the Skylark service?

Yes. A GNSS receiver must be connected to the Internet to communicate with Skylark and receive corrections.


Why are GNSS corrections from Skylark important for precise localization?

Corrections are vitally important in a high-precision GNSS location system as satellite orbits vary, satellite clocks drift, satellite signals take long paths through the ionosphere and troposphere where radiation from the sun and weather patterns above Earth’s atmosphere all degrade satellite signals. As the signals get closer to Earth, there are additional multipath reflections from buildings and structures in real-world environments that affect the precision of the position results being computed by the GNSS receiver. This can result in positions being incorrect by millimeters up to multiple meters, if not corrected. Skylark has been designed from the ground up to correct all of these satellite signal degradations, so Piksi Multi and Duro GNSS receivers can obtain centimeter-level accuracy with high reliability.  


When should I use the Skylark Cloud Correction Service?

The cloud corrections service is the easiest way to enable Piksi Multi and Duro receivers to produce high-precision positioning output within the Skylark coverage area.