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.
Continuous sinusoidal signals
Frequency - 10 Hz to 37,5 GHz.
- 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/fx·tcq|),
where d0 - relative error of the frequency of the reference oscillator; fx - measured frequency; tcq - count time.
Subband Ch3-66 - 10 Hz to 120 MHz.
- Minimum (signal-to-noise - not less than 40 dB) - 0,05 V;
- Maximum - 1 V.
Subband - from 0,12 GHz to 2 GHz.
Level input frequency:
- Minimum - 0,02 mW;
- Maximum - 10 mW.
Sub-band - 2 GHz to 37,5 GHz.
- 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/fx·tcq|+|dgene|+|fff/fx|),
where d0 - relative error of the frequency of the reference oscillator; fx - measured frequency; tcq - count time; dgene - ± 2,10 -6 - component relative error due to the instability of the internal oscillator frequency RF; fcl - 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.
Frequency sub-band - 0,1 GHz to 2 GHz.
- Minimum - 0,1 mW;
- Maximum - not more than 10 mW.
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.
- 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 (ffn) where fn - 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.
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.