DH1001 Rubidium Atomic Frequency StandardDetailed product description：

The DH1001 rubidium atomic frequency standard is a highly stable frequency source that utilizes the ground state hyperfine energy level transition spectral lines of rubidium isotope atoms to control the frequency of voltage controlled crystal oscillators. It is a passive atomic frequency standard. This instrument is suitable for time and frequency measurement, radio navigation and positioning, tracking of missiles and satellites, astronomical research, geological exploration, network synchronization of digital communication, precision timing and timing, etc.

1. Frequency accuracy:
a) Frequency calibration: The frequency accuracy at the factory should be better than 1 × 10-10.
b) Frequency adjustment range: The frequency adjustment range is greater than 2 × 10-9.
2. Frequency drift rate: The daily frequency drift rate is better than 2 × 10-12/d.
3. Frequency stability:

Sampling time τ 1.0 seconds 10.0 seconds 100.0 seconds
Stability σ y (τ) ≤ 1 × 10-11 ≤ 3 × 10-12 ≤ 1 × 10-12

4. Frequency startup characteristics: At 25 ℃, the lock time is ≤ 5 minutes; After 10 minutes of startup, the frequency startup characteristic is ≤ 2 × 10-10.
5. Frequency temperature characteristics: In an environment of -10 to+50 ℃, the frequency variation is ≤ 3 × 10-10.
6. The influence of geomagnetic field on frequency: The influence of geomagnetic field on frequency is ≤ 2 × 10-11.
7. Output frequency: 10MHz, 5MHz, 1MHz.
8. Output amplitude (sine wave): The effective voltage value on a 50 Ω load is 0.8V to 1.2V.
9. Harmonic distortion: ≤ -40dB.