Boonton 4500B Peak Power Meter - Manual (Page 215)

Boonton 4500B RF Peak Power Analyzer
Remote Operation 5-15
5.5.3 CALibration Subsystem
The CALibration group of commands is used to control automatic zero offset and linearity adjustments to the RF power
sensor and the channel to which it is connected. Zero offset adjustment can be performed at any time if no RF signal is
applied to the sensor. Linearity calibration requires that the sensor be connected to the built-in 1 GHz calibration signal.
The CALibration group also makes automatic zero and gain adjustments to the external trigger channels. Trigger channels
can be calibrated only when there is no external signal connected.
The numeric suffix of the CALibration commands refers to a measurement channel, that is CALibration1 and CALibration2
refer to CH1 and CH2 input channels, respectively and CALibration3 and Calibration4 refer to TRIG1 and TRIG2
respectively. .
Note that CALibration2 and CALibration4 commands will generate an error if used with a single channel Model 4500B.
Also note that although CALibration commands do not accept any arguments, all have a query form, which returns an error
flag upon completion of the zero or calibration process. This allows the user to determine when the process has completed,
and whether it was successful.
CALibration:AUTO
Description: Performs a multi-point sensor gain calibration of the selected sensor with the internal 1 GHz
calibrator. This procedure calibrates the sensor‘s linearity at a number of points across its entire
dynamic range
Syntax: CALibration[1|2]:AUTO[?]
Returns: 0 if successful, 1 otherwise (query form only)
Valid Modes: Power sensors only.
CALibration:AUTO
Description: Performs an offset and gain calibration of the selected external trigger channel. This procedure
requires that no external signal be applied during calibration.
Syntax: CALibration[3|4]:AUTO[?]
Returns: 0 if successful, 1 otherwise (query form only)
Valid Modes: External trigger channels only.