Boonton 4500B Peak Power Meter Uživatelský manuál stáhnout pdf (Strana 216)

Boonton 4500B RF Peak Power Analyzer

Remote Operation

5-16

CALibration:USER:FREQcal

Description: Performs a single-point sensor gain calibration of the selected sensor using an external (user-

supplied) 0dBm power reference at the current operating frequency. This method can be

combined with an AUTOCAL to yield the most accurate power readings at frequencies that are far

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factory-stored values with a measured result. If the channel Frequency setting is changed, the

original cal-factor will be restored. A FREQcal that attempts to set a cal-factor larger than 3 dB

will be rejected and an error returned.

Syntax: CALibration[1|2]:USER:FREQcal ?]

Returns: 0 if successful, 1 otherwise (query form only)

Valid Modes: Power sensors only.

CALibration:ZERO

Description: For a sensor that has been previously auto calibrated and has valid auto-cal status, performs a zero

offset null adjustment.

Syntax: CALibration[1|2]: ZERO[?]

Returns: 0 if successful, 1 otherwise (query form only)

Valid Modes: Power sensors only.

CALibration:ZERO

Description: Performs an offset null adjustment for the specified external trigger input. No external signal can

be applied during calibration.

Syntax: CALibration[3|4]: ZERO[?]

Returns: 0 if successful, 1 otherwise (query form only)

Valid Modes: External trigger inputs only..

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Boonton 4500B Peak Power Meter Uživatelský manuál Strana 216