SparkPNT Unveils GNSS Disciplined Oscillator (GNSSDO) Capable of Sub-Nanosecond Accuracy
The GNSSDO provides ultra-precise timing output and allows the reception of timing correction service AtomiChron® for accuracy better than 1ns.
NEWS PROVIDED BY:
SparkFun Electronics
Boulder, CO
28 Feb, 2025
SparkFun Electronics releases their first ultra-high precision GNSS timing product, the SparkPNT GNSS Disciplined Oscillator (GNSSDO). The SparkPNT GNSSDO is the perfect solution for projects that require high-precision timing (sub-nanosecond) and frequency needs in a cost-effective and durable package. The disciplined oscillator is SparkFun’s most advanced timing product, and is developed around the multi-constellation, multi-frequency, L1/L2/L5-ready mosaic-T from Septentrio.
“The SparkPNT GNSSDO represents SparkFun venturing into the high-accuracy timing market,” says SparkFun Founder Nathan Seildle. “Obtaining sub-nanosecond accuracy at this price point is a truly great accomplishment and we are thrilled to be bringing this technology into the wider market and see what incredible use cases our customers come up with.”
At its core, the GNSSDO is based on the combination of Septentrio’s mosaic-T multi-constellation, multi-frequency GNSS timing receiver, Espressif’s ESP32-WROVER processor, and the Si Time SiT5358 disciplined 10MHz oscillator - all mounted on a single circuit board. Housed in a custom extruded aluminum case with machined end panels and slotted flanges, the GNSSDO is easily suited to be installed in a weatherproof enclosure or in a server rack.
Timing precision achievable with the GNSSDO:
- Time pulse precision: 5ns
- Time pulse precision with subscription to Fugro AtomiChron® (provided over L-Band): < 1ns (optional)
- Event accuracy: < 20ns
“The SparkPNT GNSSDO represents SparkFun venturing into the high-accuracy timing market. Obtaining sub-nanosecond accuracy at this price point is a truly great accomplishment and we are thrilled to be bringing this technology into the wider market and see what incredible use cases our customers come up with.”
Nathan Seildle
SparkFun Founder
The GNSSDO comes with features that ensure both security and reliability. The Septentrio mosaic-T offers a high-precision solution for time and frequency synchronization under challenging conditions, such as during GNSS jamming or spoofing, and provides unmatched resilience thanks to its all-constellation multi-frequency capabilities and AIM+ technology. Pairing the mosaic-T with the SiT5358 Super-TCXO from SiTime guarantees the best clock frequency stability, accuracy, and holdover during a GNSS outage. The GNSSDO can be powered over USB-C, PoE, or DV input for a range of power options.
More information, including pricing and documentation about the SparkPNT GNSS Disciplined Oscillator, can be found on the product page.
Media Contact
Sean Hollister
sean.hollister@sparkfun.com
303-284-0979