1823A

Data Sheet Frequency Counters Models 1823A, 1856D Model 1823A The 1823A and 1856D are reciprocal 2.4 GHz and 3.5 GHz frequency counters that are microprocessor controlled. Their LED displays can provide up to nine digits of resolution using an external time base with a 10 s gate time. The high accuracy, sensitivity, and versatility of these counters make them an extremely valuable instrument to scientists, engineers, and communications technicians for a broad spectrum of laboratory and service applications. Model 1856D Specifications 1823A 1856D Range 0.1 Hz - 2.4 GHz 0.1 Hz - 3.5 GHz √ Frequency √ Totalize Period √ Time Base Stability ±1ppm Best Resolution 1 nHz No. of Digits 9 √ Display Hold √ Low Pass Filter Features and Benefits ■ ±1PPM Time base stability ■ Trigger level function (1823A only) ■ Frequency ratio measurement function Sensitivity 250 mV (0.1 Hz - 1 Hz), 30 mV (1 Hz - 100 MHz), 50 mV (80 MHz - 150 MHz), 50 mV (150 MHz - 2.0 GHz), 60 mV (2.0 GHz - 2.4 GHz) 30 mV (0.1 Hz - 100 MHz), 15 mV (80 MHz - 2 GHz), 20 mV (2 GHz - 3.0 GHz), 30 mV (3.0 GHz - 3.2 GHz), 50 mV (3.2 GHz - 3.5 GHz), (1823A only) ■ Time interval measurement function (1823A only) ■ RPM measurement function (1856D only) ■ External frequency standard input ■ Bright LED display ■ Attenuator ■ Period ■ Total ■ Low pass filter ■ Line filter ■ RS232C Interface Technical data subject to change © B&K Precision Corp. 2014 v051115 Remote Interface Self-Test Time Interval Measurement Frequency Ratio Measurement RS232 √ √ - √ - AC Input 115/230 V (50/60 Hz) Weight 5.5 lbs (2.5 kg) Dimensions (W x H x D) 9.4” x 3.5” x 10.6” (239 x 89 x 269 mm) One-Year Warranty www.bkprecision.com