Frequency of electron-counting Ch3-66

Also, this device can be called: Ch366, Ch3 66, ChЗ-66, ChЗ 66, ChЗ66.

Ch3-66 frequency electron-counting for automatic measurement frequency continuous sinusoidal signals as well as for measuring the mean carrier frequency pulse-modulated signals in the manual tuning mode, the measured frequency.

Scope Ch3-66: in communications technology, measurement technology, radar, radio navigation, nuclear physics, semiconductor electronics, the design, manufacture, operation and metrological support various electronic devices.

Specifications Ch3-66:

Continuous sinusoidal signals

Frequency - 10 Hz to 37,5 GHz.

Overlap:

- Between A and B - not less than 1%;

- Between B and - not less than 0,1%.

The input signal level at the input B and C by measuring the frequency (use an external attenuator) - from 1 mW to 10 mW.

Limits of relative error frequency devices cymometers - d=±(|d₀|+|1/f_x·t_cq|),

where d₀ - relative error of the frequency of the reference oscillator; f_x - measured frequency; t_cq - count time.

Input A

Subband Ch3-66 - 10 Hz to 120 MHz.

Input level:

- Minimum (signal-to-noise - not less than 40 dB) - 0,05 V;

- Maximum - 1 V.

Entrance B

Subband - from 0,12 GHz to 2 GHz.

Level input frequency:

- Minimum - 0,02 mW;

- Maximum - 10 mW.

Sign In

Sub-band - 2 GHz to 37,5 GHz.

Overlap:

- Mixer 2.245.018 (coaxial channel section - 7/3,04 mm) - 2 GHz to 17,44 GHz;

- Mixer 2.245.011-01 (waveguide channel section - 11 × 5,5 mm) - from 17,44 GHz to 25,95 GHz;

- Mixer 2.245.011 (waveguide channel cross section - 7,2 × 3,4 mm) - from 25,95 GHz to 37,5 GHz.

Band harmonics selection Ch3-66:

- 1 - 2 GHz to 3,85 GHz;

- 2 from 3,85 GHz to 8 GHz;

- 3 - 8 GHz to 12 GHz;

- 4 - 12 GHz to 16 GHz;

- 5 - 16 GHz to 20 GHz;

- 6 - 20 GHz to 24 GHz;

- 7 - 24 GHz to 28 GHz;

- 8 - 28 GHz to 32 GHz;

- 9 - 32 GHz to 36 GHz;

- 10 - from 36 GHz to 37,5 GHz.

Minimum input level:

- 2 GHz USD 12,4 GHz - 0,02 mW;

- From 12,4 GHz to 25,95 GHz - 0,05 mW;

- From 25,95 GHz to 37,5 GHz - 0,1 mW.

Maximum input level - 10 mW.

Pulse-modulated signals Ch3-66

Frequency range - from 0,1 GHz to 37,5 GHz.

RF pulse repetition frequency - not less than 100 Hz.

Duration cymometers devices - not less than 0,3 microseconds.

Porosity - from 2 to 1000.

The power level measured at the frequency at the input B, and C (applied external attenuator) - of from 1 mW to 10 mW.

Limits relative frequency error frequency device Ch3-66 with an external oscilloscope - d=±(|d₀|+|1/f_x·t_cq|+|d_gene|+|f_ff/f_x|),

where d₀ - relative error of the frequency of the reference oscillator; f_x - measured frequency; t_cq - count time; d_gene - ± 2,10 ^-6 - component relative error due to the instability of the internal oscillator frequency RF; f_cl - absolute error due to comparisons to the oscilloscope - ±100 kHz (0,3 ms to 1 ms), ±50 kHz (1 ms to 10 ms), ± 10 kHz (not less than 10 microseconds).

Amplitude for synchronizing external oscilloscope - not less than 0,5 V.

Entrance B

Frequency sub-band - 0,1 GHz to 2 GHz.

Power level:

- Minimum - 0,1 mW;

- Maximum - not more than 10 mW.

Sign In

Subband Ch3-66 - 2 GHz to 37,5 GHz.

The minimum power level of a pulse input signals:

- 2 GHz to 12,4 GHz, 0,1 mW;

- More than 12,4 GHz to 37,5 GHz - 0,2 mW.

The maximum power level - no more than 10 mW.

Crystal oscillator of frequency:

Rated frequency mode (self) - 5 MHz.

Limits frequency correction device at release Ch3-66 - not less than 7,5 × 10^-7 to each side of the nominal value.

The actual value of the error rate after 2 hours of operating mode - ± 1,10^-8.

Relative error of frequency 2 hours operating mode:

- Within 30 days - ±1,5·10^-7;

- 12 months - ±5,10^-7;

- 24 months - ±7,5·10^-7.

RMS random relative frequency variation Ch3-66 after 2 hours of operating mode:

- 1 s - 1,10^-10;

- With 10 - 1,10^-10;

- 24 hours - 2,10^-8.

Temperature coefficient of frequency - ±1,10^-9 1° C.

Resolution Ch3-66 (counting time - 10^{- n)- n} 10 Hz,

where n - integers from 0 to 3.

Smooth time setting display unit frequency (allowable error - ±50%) - from 0,1 seconds to 5 seconds.

The amplitude of the voltage - less than 0,5 V.

Characteristic impedance - 50.

External source:

- Reference frequency - 5 MHz;

- Relative error - ± 5,10^-7;

- Sine wave - 0,5 V to 3 V.

Specific instability frequency (time interval - 15 minutes) - f₀ = max (ff_n) where f_n - initial frequency value; f - frequency current.

Automatic determination of the mean number of frequency measurements.

Input impedance of frequency Ch3-66:

- Entrance A - 1 MOm/50 pF;

- Entrance B - 50 ohm section of the channel - 7/3,04 mm;

- Input - 50 Ohm section of the channel - 7/3,04 mm (2 GHz to 17,44 GHz) waveguide input (from 17,44 GHz to 37,5 GHz).

Operating mode devices cymometers - 2 hours.

Reset start-Ch3-66: automatic and manual.

TEST mode - functional control device units.

Calculator-mode.

Encoding mode.

Interface Ch3-66 - CPC.

Time ready device - 15 min.

Time of continuous operation - 16 hours.

Dimensions - 488x1333x555 mm.

Weight - 20 kg.

Operating conditions of frequency Ch3-66:

Ambient temperature - from -10º C to +50º C (263 K to 323 K).

Relative humidity at +25º C - up to 98%.

Pressure - 60 kPa to 100 kPa (450 mm hg. art. 750 mm hg. tbsp.).

Voltage - 220±22,220±11,115±5,75 V.

Frequency - 50±1 Hz 400±12 Hz.

Power consumption Ch3-66 - no larger than 120 V·A.

MTBF - not less than 5000 hours.

Gamma-percent life at γ = 90% - at least 10000 hours.

Gamma-percent lifetime at γ = 90% - at least 15 years.

Gamma-percent storage life CH3-66 at γ = 90%:

- For heated storage - not less than 10 years;

- For unheated storage - 5 years.