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Universal frequency meter Ch3-89

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Universal frequency meter Ch3-89
The frequency meter is able to work both independently and as part of automated measuring systems with interfaces such as USB or RS-232.

Technical specifications

Frequency and period of sinusoidal signals (inputs A, B) 0.001 Hz - 150 MHz
Frequency of video pulse signals (inputs A, B) 0.001 Hz - 100 MHz
Frequency of continuous sinusoidal oscillations (input C) (0.1 - 1) GHz
Frequency of continuous sinusoidal oscillations (input D) (1 - 37.5) GHz
Carrier frequency of a continuous signal with frequency modulation (FM) (input D) Fh = (1 - 18) GHz, Fm = 100 Hz-100 kHz; frequency deviation from 10 kHz to 10 MHz
Carrier frequency of a continuous signal with amplitude modulation (AM) (input D) Fh = (1 - 18) GHz, Fm = 100 Hz - 100 kHz; AM factor up to 100%
Carrier frequency of a continuous radio pulse sequence (IM) signal (input D) Fn = (1-37.5) GHz, from 0.15 microseconds to 1ms, Fsl from 100 Hz to 3 MHz, from 2 to 103
Pulse duration 10 ns – 0.1 s
Time interval from -10 to 10 s
The duration of the front, the decay of the pulses is 5 ns - 100 microseconds
Phase difference of two synchronous sinusoidal signals from minus 360° to 360°
The measurement error of the phase difference of two synchronous sinusoidal signals is ± 0.36° (from 1 kHz to 1 MHz) ± 3.6° (above 1 MHz)
Input signal level:
•for sinusoidal signal (inputs A, B) (0.03 - 7.0) V
•for video pulse signal (inputs A, B) (0.1 - 10.0) V
•for a sinusoidal signal (input C) (0.03 - 1.0) V
•for sinusoidal and IM signals (input D) 10 MW (from 1 to 8 GHz); 40 MW (sv. 8 to 18 GHz); 50 MW (sv. 18 to 37.5 GHz).
The nominal frequency value of the reference quartz oscillator is 10 MHz
Relative error in the frequency of the quartz oscillator, no more than ± 2x10-7 in 12 months
Operating temperature range from 5 to 40 °C
AC power supply 220 V, 50 Hz
Power consumption, no more than 100 VhA
Overall dimensions, mm 496x174x459
Weight, not more than 16 kg