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prog.book : ch4cal.fm 2 Mon Feb 15 09:24:37 1999

CALibration Subsystem

4-2 HP E4418B/E4419B Programming Guide

CALibration Subsystem

The CALibration command subsystem is used to zero and calibrate the

power meter. It is also used to set the reference calibration factor for the

power sensor which is being used.

The numeric sufﬁx of the CALibration program mnemonic in the

CALibration commands refers to a channel, that is CALibration1 and

CALibration2 represent channel A and channel B respectively. If you are

using the single channel HP E4418B power meter the CALibration2

commands are irrelevant and cause the error “Header sufﬁx out of range.”

Zeroing and calibration of the power meter is recommended:

• when a 5˚C change in temperature occurs.

• when you change the power sensor.

• every 24 hours.

• prior to measuring low level signals. For example, 10 dB above the

lowest speciﬁed power for your sensor.

The CALibration commands, with the exception of RCFactor, are all

overlapped commands, that is, the power meter can continue parsing and

executing subsequent commands while initiated. Refer to “Using the

Operation Complete Commands”, on page 1-89 to determine when the

commands are complete.

Keyword Parameter Form Notes Page

CALibration[1|2]

[:ALL] [event; no query] page 4-3

[:ALL]? [event;query] page 4-5

:AUTO <Boolean>|ONCE page 4-7

:ECONtrol

:STATe <Boolean> page 4-9

:RCALibration <Boolean> page 4-10

:RCFactor <numeric_value> [non-SCPI] page 4-12

:ZERO

:AUTO <Boolean>|ONCE page 4-14

HP E4418B Programming Guide

Other manuals for HP E4418B