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The built-in time scale shaper provides a pulse signal of 1 c at the output of the device. Its small dimensions, weight, power consumption, and operating time allow it to be widely used as an embedded source of high-stability signals in frequency measuring devices and complexes, telecommunications systems, navigation and communication systems. It includes a frequency binding module based on a pulse signal of 1 s from an external time scale or from a SRNS GLONASS/GPS receiver and a tunable frequency synthesizer with the ability to adjust the frequency via the RS-232 interface. The built-in binding module allows the device to be used when operating in automatic correction mode as a source of a highly stable signal with a frequency error of ± 5 · 10-12 per day.

The composition of the PM-3 verification module: Frequency comparator CHK7-1011; Universal frequency meter Ch3-86A; Universal voltmeter V7-79; Absorbed power wattmeter M3-108-2; High-frequency signal generator G4-229; High-frequency signal generator G4-230; Generator of test pulses G9-1A; Oscilloscope S1-177; DC power supply B5-79/1; Electronic switchboard of RF signals; AC power source B2-7 (2 pcs.); PC, printer; Basic load-bearing structures (BNC). Technical specifications Measurement ranges of time-frequency parameters of signals: Continuous oscillation frequency from 0.005 Hz to 17.85 GHz Pulse repetition rate from 0.01 Hz to 100 MHz The carrier frequency of the IM signal is from 100 MHz to 17.85 GHz Pulse duration from 10 ns to 1000 s Time interval from 0 to 1000 s Nominal values of the frequency of the studied signals are 2,048; 5,0; 10,0; 10,24 MHz Measurement errors of time-frequency parameters of signals: Frequency of continuous oscillations ± (2,4·10-10 - 4·10-3) Pulse repetition rate ± (2·10-7 - 2·10-3) The carrier frequency of the IM signal is ± 2·10-7 Pulse duration ± (1 - 200) ns Time interval ± (1 - 200) ns The relative deviation of the frequency of the studied signal from the reference frequency ± (5·10-13 - 2·10-12) Frequency of continuous oscillations ± (3·10-11 – 1,1·10-5) Pulse repetition rate ± (2·10-11 – 6·10-5) Carrier frequency of the IM signal ± (3·10-11 – 1,1·10-5) Pulse duration ± (1·10-8 – 7,2·10-4) Time interval ± (2·10-10 – 7,2·10-4) Nominal values of the reference signal frequency ± (2·10-11 – 2,4·10-10) General technical characteristics: The area occupied by the module is 8-12 m2 Weight, not more than 327 kg Power supply voltage from 198 to 242 V frequency (50 ± 0.5) Hz Power consumption, no more than 2400 VA

Since it is reliable and easy to operate, the device is widely used in metrological centers, measuring laboratories, at the workplaces of REA developers. The comparator Ch7-1014 has a communication interface with an external personal computer USB 2.0 and application software for an external PC. At the request of the customer, the comparator can be supplied complete with a laptop or tablet computer with installed software.

Basic properties Wide frequency range; Small VSWR values. Operating conditions Operating temperature range from minus 10 to 50 ° C; The relative humidity of the air is up to 98% at a temperature of 25 ° C. Technical specifications Nominal attenuation, dB 30 Attenuation error, dB ± 1.5 VSWR 1.4 Frequency range, GHz 0-18 Input power, W 1 Type of coaxial connectors (according to GOST RV 51914-2002) IIIB-IIIP