Appendix G: Calibration
VX4101A MultiPaq Instrument User Manual G–13
Calibration for the Counter
This procedure shows you how to calibrate the Counter for the VX4101A
MultiPaqtInstrument.
It is assumed the module has completed its power-on self test. For information
on specific commands or syntax, please review the Syntax and Commands
section.
You need the following equipment to calibrate the Counter:
HPrecision DC calibrator
HFunction generator (1 kHz square wave at ±2.5 V)
(10 MHz square wave at ±1.0 V)
HHigh frequency signal generator (Required for factory calibration only)
(1000 MHz Sine @–21 dBm, 10 MHz Sine @ 0 dBm)
HHigh accuracy clock standard, such as a rubidium clock source (10 MHz @
0 dBm)
1 year
Before you begin the calibration procedures for the Counter, you should
understand the following:
Channel Specifications. For the calibration procedures referenced below,
[<channel>] is either 1 or 2, depending on the channel being calibrated. For
example, the command CALibrate[<channel>]:ZERO could be specified as one
of the following:
cal1:zero to zero channel 1, or
cal2:zero to zero channel 2
If [<channel>] is not specified (e.g. cal:zero), channel 1 is the default.
For channel 1, the input signal should be connected to the CH 1 input of the
Counter.
For channel 2, the input signal should be connected to the CH 2 input of the
Counter.

Prerequisites

Equipment Required

Recommended Calibration

Interval

What You Should Know

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