Agilent Technologies X Series Manual page 356

AMPTD Y Scale
Enable Elec Atten
Enables the Electronic Attenuator in dual attenuator configurations. This key does not appear in single
attenuator configurations, as in the single attenuator configuration there is no "electronic attenuator"
there is only a single integrated attenuator (which has both a mechanical and electronic stage).
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 and are negligible
for front panel use. See
discussion of the pros and cons of using the electronic attenuator.
For the single attenuator configuration, for SCPI backwards compatibility, the "soft" attenuation feature
replaces the dual attenuator configuration's electronic attenuator. All the same couplings and limitations
apply. See "Attenuator Configurations and Auto/Man" on page
See "More Information" on page
Key Path
Remote Command
Example
Dependencies
Couplings
Preset
State Saved
Initial S/W Revision
Modified at S/W Revision
356
"Using the Electronic Attenuator: Pros and Cons" on page 357
357.
AMPTD Y Scale, Attenuation
[:SENSe]:POWer[:RF]:EATTenuation:STATe OFF|ON|0|1
[:SENSe]:POWer[:RF]:EATTenuation:STATe?
POW:EATT:STAT ON
This key only appears in the dual attenuator configuration. However, in the
single attenuator configuration, EATT SCPI commands are accepted for
compatibility with other X-series instruments and set a "soft" attenuation as
described in "Attenuator Configurations and Auto/Man" on page
The electronic attenuator (and the "soft" attenuation function provided in
single attenuator configurations) is unavailable above 3.6 GHz. Therefore, if
the Stop Frequency of the analyzer is > 3.6 GHz then the
key will be OFF and grayed out.
If the Internal Preamp is on, meaning it is set to Low Band or Full, the
electronic attenuator (and the "soft" attenuation function provided in single
attenuator configurations) is unavailable. In this case the
key will be OFF and grayed out.
If either of the above is true, if the SCPI command is sent, an error indicating
that the electronic attenuator is unavailable will be sent.
If the electronic/soft Attenuator is enabled, then the Stop Freq of the analyzer
is limited to 3.6 GHz and the Internal Preamp is unavailable.
Enabling and disabling the Electronic Attenuator affects the setting of the
Mechanical Attenuator (in dual attenuator configurations). This is described in
more detail below this table.
OFF for Swept SA measurement; ON for all other measurements that support
the electronic attenuator
Saved in instrument state
Prior to A.02.00
A.03.00
for a detailed
355.
Enable Elec Atten
Enable Elec Atten
355.