Boonton 4530 Peak Power Meter User Manual - Manual (Page 48)

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Chapter 3 Boonton Electronics
Operation 4530 Series RF Power Meter
Main Menu > Channel 1 | 2 > Params > Def Pulse > [ StartGate, EndGate ]
The average power of a pulse can be measured with “automatic gating” rather than by “time specified gating
with markers”. This is useful in GSM and TDMA applications to exclude the rising and falling transition
intervals. The gate start and end is automatically determined as a percentage of detected pulse width and the
average power during the “useful portion” of the pulse is returned as AvgPulse power in the auto-measure
array. The pulse start and end are defined as the times at which the pulse’s rising and falling edges crosses the
mesial level. Setting to 0 and 100% will measure average power over the entire pulse from start to end.
Range: StartGate: 0 to 40%, EndGate: 60 to 100%
Default: StartGate: 5%, EndGate: 95%
Remote Command: SENSe:PULSe:{STARTGT | ENDGT} <n>
Main Menu > Channel 1 | 2 > Params > Range
Select the instrument's internal measurement range when using CW power sensors or Voltage sensors. The
4530 series uses two widely overlapping ranges for power measurements, and voltage sensors add a third
range for very high level signals. Auto is the preferred setting, and should be used in all cases except when
the signal makes frequent, large, level transitions, or when the absolute fastest settling is needed after a large
power step. Note that improper range settings may result in incorrect or overrange readings.
Auto Automatically chooses the best range for the current signal. (Default)
Range 0 Range 0 is used for low-level signals (below approximately -10dBm)
Range 1 Range 1 is used for higher signals (above approximately -30dBm).
Range 2 Range 2 is only needed for voltage measurements above 3 volts.
Remote Command: CALCulate:RANGe <AUTO, 0, 1, 2>
Main Menu > Channel 1 | 2 > Params > Alarm >
Controls the power limit alarm operation. When alarm operation is enabled (ON), the “primary measurement”
(average power in CW or Modulated modes, average power between markers in Pulse mode) is monitored, and
compared to preset upper and lower power limits. If the power is beyond either of these limits, a
↑↑↑↑↑ ↓↓↓↓
or
↓ will
appear in the main text display above the units to indicate an out-of-limit measurement. Additionally, remote
interface flags are set to save a trip condition even if the power has returned to within the normal limits.
Off Disable alarms (Default)
On Enable alarms
Remote Command: CALCulate:LIMit:STATe <OFF, ON>
Hi Limit, Lo Limit Set the upper and lower alarm limits.
Range: -100.00 to 100.00 dBm
Default: Hi Limit: 100.00dBm, Lo Limit: -100.00dBm
Remote Command: CALCulate:LIMit:UPPer <n>