Agilent Technologies Signal Analyzer N9030a - Manual (Page 521)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
AMPTD Y Scale
be increased with the knob and step keys, but not decreased.
Max CXA N9000A–503/507: 50 dB
CXA N9000A–513/526: 70dB
EXA: 60 dB
MXA and PXA: 70 dB
In the single attenuator configuration, the total of ATT and EATT cannot exceed 50 dB, so if the
EATT is set to 24 dB first, the main attenuation cannot be greater than 26 dB and will be reduced
accordingly; if the main attenuator is set to 40 dB first, EATT cannot be greater than 10 dB.
Initial S/W Revision Prior to A.02.00
Modified at S/W
Revision A.03.00
Attenuator Configurations and Auto/Man
As described in the Attenuation key description, there are two distinct attenuator configurations
available in the X-Series, the single attenuator and dual attenuator configurations. In dual
attenuator configurations, we have the mechanical attenuation and the electronic attenuation, and
the current total attenuation is the sum of the electronic + mechanical attenuation. In single
attenuator configurations, we refer to the attenuation set using the (Mech) Atten key (or POW:ATT
SCPI) as the “main” attenuation; and the attenuation that is set by the SCPI command POW:EATT
as the “soft” attenuation (the POW:EATT command is honored even in the single attenuator
configuration, for compatibility purposes). Then the current total attenuation is the sum of the
main + soft attenuation. See the Elec Atten key description for more on “soft” attenuation.
In the dual attenuator configuration, when the electronic attenuator is enabled, there is no
Auto/Man functionality for the mechanical attenuator, and the third line of the key label (the
Auto/Man line) disappears:
Enable Elec Atten
Enables the Electronic Attenuator.
The electronic attenuator offers finer steps than the mechanical attenuator, has no acoustical
noise, is faster, and is less subject to wear. These advantages primarily aid in remote operation
Remote Language Compatibility Measurement Application Reference 521