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Rubidium frequency standard RFS VXI

Rubidium frequency standard RFS VXI
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RFS VXI is designed to work as part of information measuring systems based on the VXI bus as a rubidium frequency standard.

RFS VXI is designed to be used as a highly stable laboratory signal source for calibration of generator devices, time-frequency measuring equipment and other equipment, and synchronization of navigation systems.

RFS VXI contains two independent rubidium reference oscillators: primary and backup.

RFS VXI is made in the VXI standard, is a register-based device and has the dimensions of C-1.

RFS VXI implements the "Self-control" mode, which consists in checking the output frequencies of the rubidium standard.

Formation and software on / off of the following highly stable and high-precision frequencies from the main block of the rubidium generator, depending on the modifications
Designation 
Frequency
FTKS.468260.033 10 MHz,1 Hz    
FTKS.468260.033-01 10 MHz
FTKS.468260.033-02
FTKS.468260.033-03
FTKS.468260.033-04
Formation and software on / off of the following highly stable and high-precision frequencies from the backup block of the rubidium generator, depending on the modifications
Amplitude:
  • from 0.5 to 0.8 V at a load of 50 Ohms for sinusoidal signals (RMS value),
  • 2.5 to 3.5 V for pulse TTL signals and 1 Hz pulse with a duration of not more than 1.5 μs
Phase Noise:
  • at a detuning of 10 Hz - 100 dBc;
  • at a detuning of 100 Hz - 125 dBc;
  • at a detuning of 1000 Hz - 145 dBc
Root mean square relative two-sample frequency deviation during the measurement time (no more):
  • ± 2×10-11  for 1 s;
  • ± 1×10-11 for 10 s;
  • ± 2×10-12 for 100 s
Average relative frequency change per day (∆): no more than ± 5х10-12
Relative error in frequency upon release from production no more ±1×10-11 Relative error in frequency for a year no more ±2×10-9
Spurious generation: no more than -55 dBc Warm-up time: 30 minutes
Rubidium frequency standard RFS VXI