VREMYA-CH JS Company
"VREMYA-CH" main kinds of activity are the development and production of the high performance radio measurement equipment for time keeping and precision frequency comparison: hydrogen maser frequency and time standards; rubidium oscillators; frequency and phase comparators; primary reference oscillators for telecommunication networks; special software for time keeping and measurement control and monitoring systems.
- +7(831)421-02-94
- admin@vremya-ch.com
- 67, Osharskaya Str.,
Nizhny Novgorod,
Russian Federation
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product
Rubidium Reference Oscillator
LPFRS-01
Rubidium reference generator LPFRS-01 is designed to generate a highly stable reference and clock frequency signal.
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product
Hydrogen Frequency & Time Standard
CH1-1007
Hydrogen frequency and time standard Ch1-1007 is designed to generate and reproduce precision, highly stable, spectrally pure frequency and time signals. Main areas of application: – in metrology when transferring the sizes of units of frequency and time, including as part of mobile measuring complexes; – in radio astronomy when conducting scientific research; - in radio navigation when working as part of automated measuring systems and complexes.
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product
Hydrogen Frequency & Time Standard
CH1-1006
The hydrogen frequency and time standard Ch1-1006 is designed to generate highly stable, high-frequency, spectrally pure sinusoidal 5, 10, 100 MHz and pulsed 1 Hz signals and for the behavior of time-frequency measurements.
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product
Pulse Signal Amplifier
VCH-606
The pulse signal amplifier VCH-606 is designed to multiply a single pulse or a sequence of pulses to 16 independent outputs. The impulse signal amplifier includes 16 independent channels with unity gain each for connecting consumers of impulse signals with an input impedance of 50 Ohm.
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product
Fiber Optic Modem
VCH-608
The VCH-608 fiber optic modem is designed to receive and transmit via a fiber optic communication line (FOCL) signals of frequency and time standards (TSV) :- pulse signals 1 Hz (1 PPS) with delay compensation,- harmonic electrical signals with a nominal value frequency 100 MHz with phase instability compensation.
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product
Passive Hydrogen Maser
VCH-1008
The VCH-1008 Passive Hydrogen Maser is a compact hydrogen maser with excellent frequency stability and utilises state-of-the-art technology. Full digital processing of the modulation and servo loop signals makes it ideal for high accuracy applications. An internal GPS/GLONASS option is available and provides automatic output signal frequency calibration.Key applications:- National Time Keeping Service- Space tracking and navigation- Verification of frequency signals - Scientific research
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Multi-Channel Phase Comparator
VCH-315M
Multi-channel phase comparator VCH-315M, together with a computer and special software, is designed for simultaneous measurement of frequency instability characteristics (RMS, RMS) of a group of sinusoidal signals of standard frequencies 5; ten; 100 MHz.
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product
Precision Frequency Comparator
VCH-314
Frequency comparator VCH-314 controlled by Personal Computer is a system for precise phase and freqyency instability measuring. It contains two identical measuring channels (three input signals). Using cross-correlation technique allows to obtain super-low measurement error and to calculate frequency instability of each single signal separately.
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product
Active Type Hydrogen Frequency
CH1-1003M
Hydrogen frequency and time standard Ch1-1003M is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main applications: – national time and frequency services; – ground stations for tracking and control of satellite radio navigation systems; – radio interferometry with extra long base.
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Redundant Reference Frequency Shaper
CH7-317
Redundant reference frequency shaper Ch7-317 is designed to generate and reproduce frequency and time signals protected from frequency and phase failures based on the results of signal processing from a group of frequency and time keepers.
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product
Trunk Amplifier
The trunk amplifier is designed to compensate for attenuation and additional amplification of signals from GPS and GLONASS satellite radio navigation systems as part of synchronization and common time equipment.
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product
Comparator-Analyzer Phase Digital
VCH-325
Comparator-analyzer phase digital VCH-325, designed for precision measurements of the relative frequency difference, frequency instability and phase noise spectrum of highly stable signal sources in the frequency range from 1 to 100 MHz. The software is installed on an external computer (computer not included).
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product
High-Frequency Switch
VCH-604
High-Frequency Switch VCH-604 is designed for switching high-frequency (1 – 100 MHz) and pulse TTL signals. VCH-604 contains two groups of channels; each group has 25 inputs and 2 outputs. VCH-604 can be controlled from PC via GPIB and RS-232 interfaces or directly from front panel.
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product
Receiver-Synchronizer
VCH-311C
The receiver-synchronizer VCH-311C is intended for use in synchronization networks as a primary reference source of highly stable synchronization signals of the first level of the hierarchy, periodically corrected in frequency according to the exact time signals (time scale) of the NKA KNS GLNASS / GPS
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product
Climate Chamber
VCH-A18
The climatic chamber is designed to maintain a stable temperature of frequency and time standards and other high-precision electronic devices.
