11 sense subsystem, Sense:correction:calfactor, Sense:correction:dcycle – Boonton 4240 RF Power Meter User Manual

Page 84: Sense:correction:frequency, Sense:correction:offset, 11 sense subsystem -24, Sense:correction:calfactor -24, Sense:correction:dcycle -24, Sense:correction:frequency -24, Sense:correction:offset -24

Advertising
background image

Boonton 4240 Series RF Power Meter

5.5.11 SENSe Subsystem

The purpose of the SENSe command subsystem is to directly configure device specific settings used to make measurements,
generally parameters related to the RF power sensor and signal processing. The SENSe commands are used to configure the
power meter for acquiring data. SENSe enables you to change measurement parameters such as filtering or averaging,

perating frequency and calfactors, and measurement gain or offset. The numeric suffix of the SENSe program mnemonic in

e SENSe commands refers to a hardware measurement “channel”, that is SENSe1 and SENSe2 represent the instrument’s

paths, respectively. The SENSe commands generally DO NOT affect the data processing

nd display portion of the measurement (see the CALCulate subsystem, Section 5.5.2). Note that SENSe2 commands will

nerate

d w

ENSe:CORRe ion:CALFacto

Descript

:

t or r

lfact

ote setting a

lfactor

ll o

as calculated

d app

erating

operating frequency will

erride

ing.

Syntax:

ction:CALFa

Argume

meri

.00 to 3.00 dB

Description:

r re

in use on the selected channel.

Syntax:

Se[

Rection:DCYC

t:

percent

ENSe:CORRection:FREQuency

or return the RF frequency for the current sensor, and apply the appropriate frequency

Syntax: SENSe[1|2]:CORRection:FREQuency <numeric value>

t:

l sensor may have narrower range)

tion:OFFSet


Description:

Set or return a measurement offset in dB for the selected sensor. This is used to compensate for
external couplers, attenuators or amplifiers in the RF signal path ahead of the power sensor.

Syntax: SENSe[1|2]:CORRection:OFFSet <numeric value>

Argument:

<numeric value> = -99.99 to 99.99 dB

o
th
SENSOR 1 and SENSOR 2 signal
a
ge

an error if use

ith a single channel 4240 Series instrument.

S

ct

r


ion

Se

eturn the frequency ca

or currently in use on the selected channel. N

nd wi

lfactor that w

ca

with this comma

verride the “automatic” frequency ca

an

lied when the op

frequency was set, and setting the

sett

ov

this calfactor

SENSe[1|2]:CORRe

ctor <numeric value>

nt:

<nu

c value> = –3

SENSe:CORRection:DCYCle

Set o

turn the duty cycle correction factor currently

SEN

1|2]:COR

le

Argumen

<numeric value> = 0.01 to 100.00

S

Description:

Set

calfactor from the sensor’s EEPROM table. Application of this calfactor cancels out the effect of
variations in the flatness of the sensor’s frequency response. If an explicit calfactor has been set,
either manually or via the SENSe:CORRection:CALFactor command, entering a new frequency
will override this calfactor and use only the “automatic” frequency calfactor.

Argumen

<numeric value> = 0.01e9 to 110.0e9 Hz (actua

SENSe:CORRec

Remote Operation

5-24

Advertising