Boonton 4530 Peak Power Meter User Manual User Manual
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Boonton Electronics
Chapter 4
4530 Series RF Power Meter
Remote Operation
SENSe:CORRection:FDOFfset
Description:
Set or return the name of the current frequency dependent offset table in use on the se-
lected channel. Two tables (TableA and TableB) are available, and each holds a list of up to
64 frequencies and corresponding offset values. See the
MEMory:FDOFfset
commands
for entering these tables. Whenever the operating frequency is changed with one of the
tables active, a new frequency dependent offset value will be calculated and applied. Set-
ting the active table to OFF cancels any frequency dependent offset. Frequency depen-
dent offsets are used to compensate for external devices such as couplers or attenuators in
the RF signal path that have know loss characteristics that vary with frequency. In the main
TEXT display, an asterisk (“*”) symbol will appear above the units if a frequency depen-
dent offset table is in use (setting is TBLA or TBLB).
Syntax:
SENSe[1|2]:CORRection:FDOFfset <asc>
Argument:
<asc> = OFF, TBLA, TBLB
Valid Modes:
All Power Sensors
SENSe:CORRection:FREQuency
Description:
Set or return the RF frequency for the current sensor, and apply the appropriate frequency
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 calfac-
tor 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” fre-
quency calfactor.
Syntax:
SENSe[1|2]:CORRection:FREQuency <n>
Argument:
<n> = 0.001 to 110.000 GHz
Valid Modes:
All Power Sensors
SENSe:CORRection:CALFactor
Description:
Set or return the frequency calfactor currently in use on the selected channel. Note setting
a calfactor with this command will override the “automatic” frequency calfactor that was
calculated and applied when the operating frequency was set, and setting the operating
frequency will override this calfactor setting.
Syntax:
SENSe[1|2]:CORRection:CALFactor <n>
Argument:
<n> = -3.00 to 3.00 dB
Valid Modes:
All Power Sensors
SENSe:CORRection:TEMPComp
Description:
Set or return the state of the peak sensor temperature compensation system. This system
compensates for drift that might otherwise be caused by changes in the temperature of the
peak power sensors. When set to OFF, a warning will be displayed if the sensor tempera-
ture drifts more than 4 degrees C from the autocal temperature. When ON, the warning will
not appear until temperature has drifted by 30C.
Syntax:
SENSe[1|2]:CORRection:TEMPComp <asc>
Argument:
<asc> = OFF, ON (always defaults to ON on power up, or when new sensor inserted)
Valid Modes:
Peak Sensors Only