Precision GNSS, RTK & Timing Solutions — Engineered Wherever Precision Matters
GNSS satellites carry atomic clocks, which makes them the most practical source of accurate, traceable time almost anywhere. Networks, power grids and measurement systems use that signal to keep every device on the same clock.
Navisys timing products turn the satellite signal into the outputs equipment actually consumes: a 1PPS pulse to mark the second, and a disciplined 10MHz frequency reference. They are available as a complete rackmount unit, as an engine board to build into your own design, or as a USB receiver for server timekeeping.
One time reference across every site
GNSS delivers UTC-traceable time anywhere with a view of the sky, so sites in different cities stay aligned without a link between them.
Frequency as well as time
A disciplined 10MHz output keeps oscillators in radios, instruments and test benches locked to GNSS, alongside the 1PPS pulse that marks the start of each second.
Accuracy that survives signal loss
When the antenna loses sky view, holdover keeps the output within specification — the GT-804 stays within ±1.5µs for four hours.
Feeding several devices at once
Multiple 1PPS outputs drive NTP servers, PTP grandmasters and other equipment from one reference, with dual power input so the rack keeps running through a supply failure.
Complete unit — ready to install in a rack
Engine board — to build into your own equipment
USB receivers — 1PPS over the USB port
USB GNSS smart antenna that carries a 1PPS signal over the USB connection — time for a host computer without adding a dedicated timing card.
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u-blox M10 USB smart antenna with 1PPS on the USB DCD line — a compact reference for NTP stratum-1 servers and logging systems.
Learn more →USB delivers the pulse over the data connection, so it suits server and software timekeeping rather than sub-microsecond work. For precision timing, use the hardware 1PPS and 10MHz outputs of the GT-804 or GE-M16S.
NTP stratum-1 servers and PTP grandmasters for data centers and enterprise networks.
Base stations, substations and protection equipment that depend on a common clock.
Laboratory instruments and test benches locked to a traceable 10MHz reference.
Distributed controllers, data logging and edge computing where records must line up in time.
Outputs required, accuracy target and how long the system must hold time without GNSS — our team will suggest the right unit or board.
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