Rubidium Frequency & Time Standard CH1-93

Type / Specifications

1. Output/Frequency/Waveform:

10 MHz/sine wave/11
5 MHz/sine wave/5
1 pps/ pulse/5

2. Frequency Control:
Internal trim range(trimpot):
External trim range(electronic):
Digital via interface: range/resolution

≥± 3^.10^-9(0V  1.5^.10^-9
≥± 1.5^.10^-9(0V to +5V)
± 1^.10^-9/ 1^.10^-12

3. Output Impedance:

50Ω @ 10 MHz

4. Frequency Accuracy At Shipment:

±2^.10^-11(+25°C)

5. Frequency Retrace:

< 2^.10^-11

6. Aging monthly (after 1 month):

<± 2^.10^-11

7. Short Term Stability:
τ =1 sec
τ =10 sec
τ =100 sec

<1.4^.10^-11
<5^.10^-12
<3^.10^-12

8. Magnetic Field Sensitivity:

±2^.10^-11/GAUSS

9. Spectral Purity
Harmonics:

<-80 dBc

10. Harmonic 2nd:

<-35 dBc

11. Phase Noise(SSB),₤(f), dBc/Hz
SB Freq:
100 Hz
1 kHz
10 kHz

-130 dBc//Hz
-140 dBc//Hz
-145 dBc//Hz

12. Operating Temperature:

5°C to 50°C

13. Warm up at 20°C:

<120 min

14. Additional Functions installed:
Frequency Comparator
Time-Scale Counter
Disciplined Rb
Digital Display
Outer PC connection via :

Yes
Yes
Yes
Yes
USB

15. Storage Temperature:

-55°C to +85°C

16. Temperature Coefficient:

|y (50°C)-y(5°C)|
<3^.10^-10

17. Altitude:
Operating
Non-operating

-200 ft to 40,000 ft.
-200 ft to 70,000 ft.

18. Power Supply Requirements:

220±22 VAC

19. Warm-up/ Quiescent (25°C ):

60W/40 W

20. Options:
DC Power Supply 27±3VDC
Specifications by Order

Yes
Yes

21. Size:

101 x483 x 416 mm

22. Weight:

<6.5 kg

23. Warranty:

2 years

24. Extended Warranty:

Consult factory