Boonton 4530 Peak Power Meter User Manual User Manual
Page 101
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Boonton Electronics
Chapter 4
4530 Series RF Power Meter
Remote Operation
CALCulate:LIMit:UPPer
Description:
Set or return the upper limit power level for the selected channel. This limit is used for level
alarms. When the measured average power is above the upper limit, an up arrow will appear
on the display above the units on the main text screen, and flag bits are set in the alarm
register which may be accessed using
CALCulate:LIMit
commands.
Syntax:
CALCulate[1|2]:LIMit:UPPer <n>
Argument:
<n> = -100.00 to +100.00 dBm
Valid Modes:
CW and Modulated modes
CALCulate:LIMit:LOWer
Description:
Set or return the lower limit power level for the selected channel. This limit is used for level
alarms. When the measured average power is below the lower limit, a down arrow will
appear on the display above the units on the main text screen, and flag bits are set in the
alarm register which may be accessed using
CALCulate:LIMit
commands.
Syntax:
CALCulate[1|2]:LIMit:LOWer <n>
Argument:
<n> = -100.00 to +100.00 dBm
Valid Modes:
CW and Modulated modes
CALCulate:LIMit:STATe
Description:
Set or return the limit alarm system state for the selected channel. When alarms are enabled
(ON), the measured average power is compared to the preset upper and lower limits, and
the error flags are set if out of range. When OFF, no action occurs if the power is out of
range.
Syntax:
CALCulate[1|2]:LIMit:STATe <asc>
Argument:
<asc> = OFF, ON
Valid Modes:
CW and Modulated modes
CALCulate:LIMit:FAIL
Description:
Return the list of alarm limit status flags for the selected channel. The five flags are sepa-
rated by commas, and each will be either a “1”, indicating the specified alarm condition is
active, or a “0”, indicating that condition is normal. Three of the flags are latched, and
indicate if any limit violation has occurred since the start of the measurement, while the
other two indicate the current status. See the
CALCulate:LIMit:CLEar
command for reset-
ting the latched flags.
Syntax:
CALCulate[1|2]:LIMit:FAIL?
Returns:
< AnyLimitTripped, BelowLowerLimit, AboveUpperLimit, LowerLimitTripped,
UpperLimitTripped >
Valid Modes:
CW and Modulated modes