NS8000-NTP NTP/IRIG Time Server with 10 MHz, PPS OCXO Reference

NR8000-NTP

NTP/IRIG Time Server with GNSS-Locked 10 MHz OCXO Reference

A high performance timing reference that offers NTP and IRIG as well as 10 MHz, PPS and other related functions. Dual- hot swappable power supply option assure availability. PPS edge locked to the 10 MHz with the edge located anywhere on the 10 MHz period in programmable 5 ns steps. Add up to five cards with 10 MHz, IRIG and PPS outputs. Up to 25 -10 MHz or 25 - PPS or any mix inbetween.

• NTP
• Stratum 1
• +-150 ns Accuracy (see image)
• 100,000 transactions/second
• compatible with Novus Network Timing
• PPS accuracy 5 ns 1 sigma
• auto-calibration preserves GNSS-derived coefficients for OCXO holdover stability
• Rubidium holdover option available
• OCXO holdover stability: 5 ppb/day, 50 ppb/year; locked accuracy <1E-11
• low phase noise: −145 dBc/Hz @ 1 kHz offset
• front-panel LCD with status LEDs for channel, antenna, oven, and system alerts
• ethernet connectivity with NTP; supports SNMP and NMEA network monitoring
• outputs are transient and fault protected; low-jitter PPS with PL-option
• supports GPS, GLONASS, SBAS, and QZSS constellations for faster lock and reliability
• AC/DC power capability dual hot swappable power supplies
• PPS locked to the 10 MHz with programmable edge placement (ideal for SDR applications)
• 10 MHz and PPS single channel

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FAQ

1. What happens if GNSS lock is lost?
   Auto-calibration applies stored compensation coefficients, maintaining OCXO stability (5 ppb/day typical) until lock is restored.
2. Which satellite constellations are supported?
   The system tracks GPS, GLONASS, SBAS, and QZSS to minimize lock time and enhance reliability.