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BK Precision 1823A 2.4GHz Universal Frequency Counter with Ratio Function. New in Box.	Discontinued Product Code: 1823A

Description Application Notes   Datasheet PDF Format Technical Specifications Input A Characteristics Frequency Range 0.1Hz to 100MHz (DC Coupled) 30Hz to 100MHz (AC Coupled) Sensitivity 0.1Hz to 100MHz: 30mV Coupling AC or DC Selectable Impedance 1 MΩ Resistance, Shunted by <40pF Attenuator x 1 or x 10 Switch Selectable Low Pass Filter -3dB Point of 100kHz, Switch Selectable Trigger Level +350mV to -350mV (Preset 0V) Slope Positive or Negative Slope Switch Selectable * Note: Trigger error is typically ±0.3% of reading by the number of cycles averaged for input signals having better than 40dB S/N ratio and greater than 100mV amplitude. Resolution and Number of Displayed Digit Time Base Selector INT  EXT  INT  EXT  INT  EXT  INT  EXT Gate Time 0.01S  0.1S  1S  10S Number of Displayed Digit 5 6 6 7 7 8 8 9 Frequency (Input A, B) Resolution 0.1 Hz-0.99 Hz 10 µHz 1 µHz 1 µHz 0.1 µHz 0.1 µHz 10nHz 10nHz 1nHz 1 Hz-9.9 Hz 0.1 mHz 10 µHz 10 µHz 1 µHz 1 µHz 0.1 µHz 0.1 µHz 10nHz 10 Hz-99 Hz 1 mHz 0.1 mHz 0.1 mHz 10 µHz 10 µHz 1 µHz 1 µHz 0.1 µHz 100 Hz-999 Hz 10 mHz 1 mHz 1 mHz 0.1 mHz 0.1 mHz 10 µHz 10 µHz 1 µHz 1 kHz-9.9 kHz 0.1 Hz 10 mHz 10 mHz 1 mHz 1 mHz 0.1 mHz 0.1 mHz 10 µHz 10 kHz-99 kHz 1 Hz 0.1 Hz 0.1 Hz 10 mHz 10 mHz 1 mHz 1 mHz 0.1 mHz 100 kHz-999 kHz 10 Hz 1 Hz 1 Hz 0.1 Hz 0.1 Hz 10 mHz 10 mHz 1 mHz 1 MHz-9.9 MHz 100 Hz 10 Hz 10 Hz 1 Hz 1Hz 0.1 Hz 0.1 Hz 10 mHz 10 MHz-99 MHz 1 kHz 100 Hz 100 Hz 10 Hz 10 Hz 1 Hz 1 Hz 0.1 Hz 100 MHz 10 kHz 1 kHz 1 kHz 100 Hz 100 Hz 10 Hz 10 Hz 1 Hz (Table 1) Accuracy ± Time base Error ± Resolution (Table 1) Period Range 10 nS to 10 S Display n. u. m., Sec with decimal point Total Range    Capacity    Over Flow DC to 30 MHz 0 to 999 999 999 OF Max. Input Voltage Level Fig. 1 Max. Input Level (Input A, B) Input B Characteristics Frequency Range 0.1Hz to 100MHz (DC Coupled) 30Hz to 100MHz (AC Coupled) Sensitivity 0.1Hz to 100MHz: 30mV Coupling AC or DC Selectable Impedance 1 MΩ Resistance, Shunted by <40pF Attenuator x 1 or x 10 Switch Selectable Low Pass Filter -3dB Point of 100kHz, Switch Selectable Slope Positive or Negative Switch Selectable * Resolution and Number of displayed digit (Table 1): Same as Input A * Max. Input Voltage Level (Fig. 1): Same as Input A Time Interval (A -> B) Range 0.1 µSec-10Sec (0.1Hz-10MHz) LSD 100nSec Resolution ± LSD ± Trigger Error* Accuracy ± LSD ± Trigger Error ± Time base error x T.I. Multiplier 1, 10, 100, 1000 (Gate Time: 10S, 1S, 0.1S, 0.01S) Ratio (A/B) Range 0.1Hz to 10MHz (input A) 0.1Hz to 10MHz (input B) Resolution ± LSD ± (B Trig. Error x Freq. A)/N Accuracy ±1 Count of A ± B Trig. Error x Freq. A. Input C Characteristics Frequency Range 80 MHz to 2.4 GHz Sensitivity 25mV from 80 MHz to 150 MHz 20mV from 150 MHz to 2.0 GHz 60mV from 2.0 GHz to 2.4 GHz Coupling AC only Impedance 50 Ω ± 5% Max. Input Level 3 Vrms sine wave Resolution and Number of Displayed Digit Time Base Selector INT  EXT  INT  EXT  INT  EXT  INT  EXT Gate Time 0.01S  0.1S  1S  10S Number of Displayed Digit 5 6 6 7 7 8 8 9 Frequency (Input C) Resolution 80 MHz-99 MHz 1 kHz 100 Hz 100 Hz 10 Hz 10 Hz 1 Hz 1 Hz 0.1 Hz 100 MHz-999 MHz 10 kHz 1 kHz 1 kHz 100 Hz 100 Hz 10 Hz 10 Hz 1 Hz 1 GHz-2.4 GHz 100 kHz 10 kHz 10 kHz 1 kHz 1 kHz 100 Hz 100 Hz 10 Hz (Table 2) Time Base Characteristics Type TCO (Temperature controlled oscillator) Frequency 10.000000 MHz Stability ±1 PPM (±1 count) Line Voltage Stability Less than ±1 PPM with ±10% line voltage variation. Temperature Stability ±5 PPM from 0°C to 50°C Max. Aging Rate ±5 PPM/year Int. Std. Out 10 MHz (internal standard frequency output) Level 1 Vpp or more. Impedance Approx. 600 Ω Ext. Std. In 10 MHz (external standard frequency input) Level 1.5 Vrms to 5 Vrms Impedance Approx. 600 Ω Display Characteristics Display Nine Digit 0.56" LED with M/n, k/µ, Hz, m, Sec, G.T., Hold, and "OF" indicators. Function and Gate time: User Selected. "OF" Display shown when Count exceeds 999 999 999. Hold In Frequency and Period, TOTAL. Mode measurement in progress is stopped, and the last complete measurement is displayed. When Hold is released, a new measurement begins. Gate Time Depending on input frequency <10mS------------Somewhere between 0.9 and 9mS <0.1S--------------Somewhere between 9 and 90mS <1S-----------------Somewhere between 90 and 900mS <10S---------------Somewhere between 0.9 and 9S Note: Last Measurement Display will remain for 10 Seconds after SIGNAL OFF. Dimensions and Weight Dimensions (W x H x D) 3.4 x 3.5 x 10.6" (240 x 90 x 270mm) Weight Approx. 5.5 lb (2.5 kg.) Equipment Ratings Plug and Socket 3 wire AC power plug and 3 wire outlet Power & Fuse Ratings Input Voltage  Fuse  Power Max. 103 ~ 126V AC (50/60Hz)  F 0.5A / 250V  15 W 206 ~ 252V AC (50/60Hz)  F 0.2A / 250V Operating Environment Temperature 0°C to +40°C (Accuracy Specified at 23°C ± 5°C) Humidity up to 85% RH (Relative Humidity) to 40°C without temperature extremes causing condensation within the instrument. Storage Environment Temperature -20°C to +70°C Humidity below 85% RH Insulation Category II Portable equipment of local level. Pollution Degree 2 Protection to IEC 529 Ordinary Features The model 1823A is a reciprocal 2.4GHz universal frequency counter that is microprocessor controlled. The LED display can provide eight digits of resolution using the internal 10S gate time. The high accuracy, sensitivity and versatility of this counter make it an extremely valuable instrument to scientists, engineers, experimenters and communications technicians. +1PPM Time base stability Trigger function Frequency ratio measurement function Time interval measurement function External frequency standard input Bright LED display Attenuator Period Total Low pass filter Line filter RS-232C Interface Related Products... 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