TRA80 High-performance Rubidium atomic clock

High-performance Rubidium atomic clock

The TRA80 is a high-performance, cost-effective rubidium atomic clock featuring high stability, low phase noise, low aging rate, and a low temperature coefficient. It supports 1PPS discipline and 10MHz calibration, and features frequency self-test and automatic calibration. It is suitable for applications such as time and frequency measurement standards, aerospace, aircraft measurement and control, communications, astronomy, meteorology, simultaneous broadcasting, digital television, single-frequency networks, and synchronous data acquisition.

TRA80 High-performance Rubidium atomic clock

Important Features

  • Operating temperature range -30℃ ~+65℃
  • The short-term stability is better than the 5E-12/1s
  • Room temperature stable power ≤ 15W
  • Cost-effective, low ageing rate, low temperature frequency coefficient
  • High frequency stability, with a typical value of 1.5E-12 / 10s
  • Low phase noise, typical value-135 dBc / Hz@10Hz
  • 1PPS taming and 10MHz calibration
TRA80 Data Sheet

Important Features

Test itemsConditionTechnical Indicators
Output frequency10 MHz, 1-way sine wave（50Ω, ≥ 7dBm）
Factory accuracy≤±5×10-¹¹¹
Frequency controlVoltage control0~5V，with the total range of at least ±1.5×10⁻⁹
Instruction adjustmentSeamless adjustment range of at least ±1×10⁻⁶，Resolution 6.81×10⁻¹³
Locking timeIndoor temperature≤5min
100s≤1×10-¹²
1kHz≤-160dBc/Hz
10Hz≤-125dBc/Hz
10s≤3×10-¹²
100Hz≤-150dBc/Hz
Phase noise 1Hz≤-90dBc/Hz
10kHz≤-160dBc/Hz
Frequency stability 1s≤5×10-¹²
Frequency drift ratestandard±2×10⁻¹²/day，±5×10⁻¹¹/Month
Frequency drift rateFD10±1×10⁻¹²/day，±3×10⁻¹¹/Month
Frequency drift rateFD5±5×10⁻¹²/day，±1×10⁻¹¹/month
Frequency reproducibilitySwitch 24h±2 x 10-¹¹
Temperature CharacteristicsTC3≤3×10-¹⁰
Temperature CharacteristicsTC1≤1×10-¹⁰
Temperature CharacteristicsTC0.5≤5×10-¹¹¹
Harmonicharmonic≤-30dBc，clutter≤-80dBc
Working temperature Bottom plate temperature-30°C ~ +65°C
Storage temperature-40°C ~ +85°C
Power supply ±4%±12V ~ ±15V or ±24V
Rate of workPreheat≤45W
Steady state +25℃≤15W
Body size116mm×79mm×38mm
Bottom plate size127mm x 93mm
Weight<500g
1PPS input+3V~+5V TTL，Judder100ns
1PPS outputRising edge / Falling edge：≤ 10ns，Pulse width：1us~999ms，
Taming accuracy24 hours after synchronizationTaming jet lag：±50ns，Time-keeping accuracy：≤1us@24h，Frequency accuracy：≤1×10⁻¹²@24h

Typical phase noise

Frequency stability typical value

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