T760 GNSS Rubidium Atomic Time and Frequency Standard

Learn about our T760 GNSS Rubidium Atomic Time and Frequency Standardrd

The T760 is a high-precision GNSS disciplined rubidium atomic frequency standard. It integrates GNSS, a rubidium clock, and a low-phase-noise crystal oscillator, achieving output frequency stability comparable to that of a cesium clock. It supports 1PPS and UTC synchronization and features automatic timekeeping, frequency smoothing, anti-interference, and encryption. It runs a built-in Linux system and is compatible with PTPv2.1, NTP, and SNTP protocols, achieving nanosecond-level network timing accuracy. Housed in a 2U chassis, it supports multiple signal outputs, including 10MHz, 1PPS, IRIG-B, and Time of Departure (TOD).

T760 GNSS Rubidium Atomic Time and Frequency Standard

Learn about our T760 GNSS Rubidium Atomic Time and Frequency Standardrd

The T760 is a high-precision GNSS disciplined rubidium atomic frequency standard. It integrates GNSS, a rubidium clock, and a low-phase-noise crystal oscillator, achieving output frequency stability comparable to that of a cesium clock. It supports 1PPS and UTC synchronization and features automatic timekeeping, frequency smoothing, anti-interference, and encryption. It runs a built-in Linux system and is compatible with PTPv2.1, NTP, and SNTP protocols, achieving nanosecond-level network timing accuracy. Housed in a 2U chassis, it supports multiple signal outputs, including 10MHz, 1PPS, IRIG-B, and Time of Departure (TOD).

T760 GNSS Rubidium Atomic Time and Frequency Standard

Important Features

  • Daily average accuracy <5E-13
  • 1s\10s\100s\ Stability 5E-12
  • Support 4-channel 10MHz sinusoidal low-noise isolated amplifier output
  • Six-way 1G network ports support PTPv2, NTP, and SNTP
  • Can concurrently receive GPS/QZSS, GLONASS, BeiDou, and GALILEO
  • Support SSH, SSL, SCP, SNMP, CustomMIB, HTTPS, Telnet
  • Nanosecond time accuracy relative to UTC
T760 Product Data Sheet

Important Features

Test ItemConditionTechnical Indicators
Output frequency10MHz, 4-way BNC, sine wave, 12±1dBm, 50Ω
Accuracy≤1E-12, 48 hours after power on, GNSS locked state, 24-hour average accuracy
Frequency stability1s<5E-12
Frequency stability10s<6E-12
Frequency stability100s<5E-12
Frequency stabilityDaily stability (GNSS lock)<1E-12
Phase noise1Hz≤-95dBc/Hz
Phase noise10Hz≤-130dBc/Hz
Phase noise100Hz≤-145dBc/Hz
Phase noise1kHz≤-155dBc/Hz
Phase noise10kHz≤-158dBc/Hz
Distortion (harmonics)≤-45dBc
Distortion (non-harmonic)≤-80dBc
1PPS output4-channel TTL, BNCSynchronization accuracy ±20ns, pulse width 100ms, rising edge <10ns, jitter <1ns
IRIG-B outputDCSynchronization accuracy 30ns
NTP Output6 Gigabit Ethernet portsSynchronization accuracy: 1μs, supports 23,000 requests per second, and has a user capacity of tens of thousands of units
Receiver72 channelsGPS/QZSS, GLONASS, BeiDou, GALILEO, timing accuracy 20ns
SensitivityTracking -166dBm, Cold start -157dBm
size2U, 447 x 89 x 300mm
power supply220V±20%, 47Hz~63Hz
Working temperatureHost-10℃~+55℃
Working temperatureAntenna-40℃~+75℃
Storage temperature-45℃~+85℃
humidity95% non-condensing
Power consumption60W
Weight7kg

Typical phase noise

Frequency stability typical value

Product Model List

Specifications T710T760T640T770TRA85TRS75TCA55TRM60CX5228CX910
External Synchronization InputGNSS ✓✓✓✓——————
1PPS ✓——✓✓✓✓✓——
10MHz ———✓——————
Frequency Output10 MHz sine wave 8-channel4-channel4-channelRoute 51-way1-way——1-way4-channel
10 MHz square wave Route 6—————1-way1-way——
Optional 1/5 MHz100MHz100MHz5/100 MHz——————
—NTPIRIG-B———————
Stability1s <3E-12<5E-12<3E-12≤4E-13≤ 3×10⁻¹²≤ 6×10⁻¹²≤ 8×10⁻¹¹≤ 3×10⁻¹¹≤ 1.5×10⁻¹³≤ 1.1×10⁻¹³
10s <3E-12<5E-12<3E-12≤3E-13 ≤ 1.5×10⁻¹²≤ 2×10⁻¹²≤ 2.5×10⁻¹¹≤ 1×10⁻¹¹≤2×10-¹³≤2×10-¹³
100s <3E-13<5E-13<5E-12≤7E-14≤ 5×10⁻¹³≤ 6×10⁻¹³≤ 8×10⁻¹²≤ 3×10⁻¹²≤4×10⁻¹³≤5×10-¹³
Day (GNSS Lock) <1E-12<1E-12<1E-12≤3E-14——————
Phase noise1Hz ≤-95dBc/Hz≤-95dBc/Hz≤ -100 dBc/Hz≤-120dBc/Hz≤ -95 dBc/Hz≤ -85 dBc/Hz≤ -50 dBc/Hz≤ -85 dBc/Hz≤ -123-126*
10Hz ≤-130dBc/Hz≤-130dBc/Hz≤-130dBc/Hz≤-140dBc/Hz≤ -130 dBc/Hz≤ -120 dBc/Hz≤ -80 dBc/Hz≤ -120 dBc/Hz≤ -145 ≤ -148
100Hz ≤-145dBc/Hz≤-145dBc/Hz≤-145dBc/Hz≤-155dBc/Hz≤ -150dBc/Hz≤ -145dBc/Hz≤ -115 dBc/Hz≤ -140dBc/Hz≤ -155 ≤ -155
1kHz ≤-155dBc/Hz≤-155dBc/Hz≤-160dBc/Hz≤-160dBc/Hz≤ -160dBc/Hz≤ -150dBc/Hz≤ -130 dBc/Hz≤ -140dBc/Hz≤ -160 ≤ -160
10kHz ≤-158dBc/Hz≤-158dBc/Hz≤-160dBc/Hz≤-160dBc/Hz≤ -160dBc/Hz≤ -155dBc/Hz≤ -140dBc/Hz≤ -145dBc/Hz≤ -165 ≤ -163
distortionHarmonic ≤-45dBc≤-45dBc≤-45dBc—≤ -30dBc≤ -30dBc—≤ -80dBc≤ -40dBc≤ -40dBc
Non-harmonic ≤-80dBc≤-80dBc≤-80dBc—≤ -80dBc≤ -70dBc——≤ -80dBc≤ -80dBc
Pulse outputNumber of way 4 4 4 4 1111——
Synchronization accuracy 20ns20ns20ns10ns——————
Frequency drift rate/day ————±5×10⁻¹³±1×10⁻¹²≤3×10-¹¹¹±3×10⁻¹²≤3×10-¹⁰≤1×10-¹⁰
Physical and Electrical CharacteristicsWorking temperature -10℃~+55℃-10℃~+55℃-10℃~+55℃-10℃~+55℃-40℃~+65℃-40℃~+65℃-40℃~+85℃-40℃~+75℃ -20℃~+70℃0℃~+40℃
Cunjian Temperature -45℃~+85℃-45℃~+85℃-45°C to +75°C-55°C to +85°C-40℃~+85℃-40℃~+85℃-55℃~+125℃-55℃~+100℃-40℃~+85℃-55℃~+125℃
power supply 220V±20%220V±20%220V±20%220V±20%+12V to +15V or +24V+12V–+15V, ±41 TP3T +3.3V±5% +5V±4%+12VDC+14 to +125°C
Rate of work 50W60W60W70W warm-up, steady-state ≤ 30WWarm-up ≤ 45 W, steady-state ≤ 15 WStart-up power ≤ 28.5 W, steady-state power ≤ 14.5 WWarm-up ≤ 10 W, steady-state ≤ 1.8 WWarm-up ≤ 15 W, steady-state ≤ 8 W≤7.2 W≤27 W
External Dimension 2U half-width2U2U2U116mm×79mm×38mm68mm×68mm×18mm 41mm×36mm×17mm51mm×51mm×18mm50mm×50mm×19mm5 inches × 3 inches × 3 inches
Weight 2Kg5 kg3.5 kg5 kg≤500g≤300 g≤50 g<100g——
Well-behaved and punctualAfter 24h of synchronization 200 ns200 ns10 us30 ns (20 days after synchronization)≤1 µs after 24 hours of synchronization≤1 us—≤1 us——

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