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
Primary Reference Source
VCH-1008C
The primary reference source VCH-1008C is designed to form highly stable signals used in digital communication networks as the first level of the hierarchy. The use of digital technologies for the formation and processing of signals allows you to realize the best stability characteristics.
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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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Frequency Calibrator
VCH-313
The frequency calibrator VCH-313 is designed to determine the frequency error and calibrate frequency standards of various types based on the signals of the NSC SNS GLONASS/GPS .
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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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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
Rubidium Reference Oscillator
VCH-210
The rubidium reference generator VCH-210 is designed to generate a highly stable reference and clock signal.
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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
Time Repeater
VCH-402
Time repeater VCH-402 is designed for use in TCP/IP networks as a Time Server of the first level (NTP Stratum1).The time repeater is built on the basis of a single-board microcomputer running under the Linux operating system.
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product
GPS/GLONASS Disciplined Rb Oscillator
VCH-311
GPS/GLONASS disciplined rubidium frequency standard model VCH-311 is a high stable frequency signal source (STANDARD mode), or precision frequency calibrator for any external standard signals (CALIBRATOR mode). The instrument contains multi-channel GPS/GLONASS receiver, time scale comparison unit and automatically adjustable Rubidium reference oscillator.
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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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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
Hydrogen Frequency & Time Standard
CH1-1035
Hydrogen frequency and time standard Ch1-1035 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference 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
Rubidium Generator
SRO-100
Rubidium generators SRO-100 are designed to generate and output to the consumer highly stable, high-frequency, spectrally pure sinusoidal signals with a frequency of 5 or 10 or 15 MHz.
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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.
