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Designed and manufactured in Boulder, Colorado, USA, the SparkPNT GNSSDO / GNSSDO+ are the perfect solution for your high-precision timing needs. Based around the multi-constellation, multi-frequency, L5-ready mosaic-T from Septentrio, these are our most accurate GNSS timing product to date. The GNSSDO features a SiTime SiT5358 disciplined 10MHz Digitally-Controlled Temperature-Controlled Crystal Oscillator (DCTCXO) providing excellent clock accuracy and stability. The GNSSDO+ gets an upgrade from the Rakon STP3593LF disciplined 10MHz Digitally-Controlled Double-Oven Crystal Oscillator (OCXO) providing superb clock accuracy, stability and holdover. The mosaic-T also has built-in on-module support for the Fugro AtomiChron® L-band timing service.

Under the hood, the GNSSDO and GNSSDO+ are based on the mosaic-T GNSS module from Septentrio, plus the Espressif ESP32-WROVER processor (16MB flash, 8MB PSRAM). The mosaic-T has USB-C connectivity (with Ethernet-over-USB), multiple UARTs and supports full Ethernet connectivity. You can connect the mosaic-T directly to your Ethernet network - our product supports Power-over-Ethernet too. The ESP32 rides shotgun, disciplining the oscillator and controlling the OLED display. The GNSSDO and GNSSDO+ have multiple power options including USB-C, PoE and 9V-36V DC, making it easy to connect them to a battery-backed supply. Robust SMA connections and screw cage terminals provide access to the Pulse-Per-Second and 10MHz clock signals.

RTK Not Supported

The mosaic-T is a superb GNSS module designed for highly accurate timing applications. However, RTK is not supported.

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