Filter
Top Products
Chapter 1 61
GPIB Command Dictionary
AFANalyzer subsystem
:NOTCh:GAIN <string>
:NOTCh:GAIN?
These commands set/query the gain of the AF analyzer’s notch filter
amplifier. This command is only effective when autoranging is turned
off using the AFAN:RANG ‘Hold’ command.
Gain is automatically set when the AFAN:RANG ‘Auto’ command is
used. If autoranging is enabled (AFAN:RANG ‘Auto’) and you attempt
to change the gain setting by sending the AFAN:NOTC:GAIN
command, the value you send will be overridden by the autoranging
function.
Syntax
AFAN:NOTC:GAIN ‘0 dB’
‘10 dB’
‘20 dB’
‘30 dB’
‘40 dB’
AFAN:NOTC:GAIN?
Screen/field equivalent
AFAN:NOTC:GAIN controls the Notch Gain field on the AF
ANALYZER screen when the Gain Cntl field is set to Hold.
:NOTCh:FREQuency <real number>
:NOTCh:FREQuency?
These commands set/query the center frequency for the variable
frequency notch filter. This command utilizes the “Real Number Setting
Syntax” on page 299, but does not use the :STATe command.
Syntax
AFAN:NOTC:FREQ <real number> !valid 330 Hz to 10 kHz
AFAN:NOTC:FREQ?
Screen/field equivalent
AFAN:NOTC:FREQ controls the Notch Freq field on the AF
ANALYZER screen.