What is the required signal level for the 1856D and 1823A counters to detect and measure frequency?

2020-01-15

Model 1823A

Input A and B:

Sensitivity:

0.1 Hz to 1 Hz: 250 mV 1 Hz to 100 MHz: 30 mV

Max. input level: 1823A Max Input Level.jpg

Input C:

Sensitivity:

25 mV from 80 MHz to 150 MHz

20 mV from 150 MHz to 2.0 GHz

60 mV from 2.0 GHz to 2.4 GHz

Max. input level: 3 Vrms sine wave

Model 1856D

Input A:

Sensitivity: 30 mVrms

Max. input level: 1856D Max Input Level.jpg

Input C:

Sensitivity:

15mV from 80 MHz to 2000 MHz

20mV from 2000 MHz to 3.0 GHz

30mV from 3.0 GHz to 3.2 GHz

50mV from 3.2 GHz to 3.5 GHz

Max. input level:

3 Vrms sine wave

Products Q&A

Featured Products:

1823

175 MHz Universal Counter

1856D

3.5 GHz Multifunction Counter (Frequency, Period, Totalize)