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
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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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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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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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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Hydrogen Frequency & Time Standard
CH1-1033
The hydrogen frequency and time standard Ch1-1033 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main areas of application: – public service of time and frequency; – ground control complexes of radio navigation systems; – radio interferometry with extra long base.
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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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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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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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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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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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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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High-Frequency Signal Amplifier
VCH-605
High-frequency signal amplifier VCH-605 is designed to amplify and multiply sinusoidal signals with a frequency of 1-100 MHz.
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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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Network Element Management System
VCH-901
The control system (CS) VCH-901 is designed to control and monitor network elements (NE) that act as sources of clock signals on a digital communication network. These SCs include primary reference oscillators (PEG) VCH-001, secondary master oscillators (VZG) VCH-002 (Time-H), SSU55400А (HP), SSU2000E (Simetricom), SSU5548В and SSU5548С (Oscilloquartz), local master oscillator ( MZG) M100 (LONIIS), synchronization signal distribution equipment ARSS (ALTO).
