Agilent Technologies X Series Manual page 353

Dependencies
Readback Line
Initial S/W Revision
Modified at S/W Revision
Dual Attenuator Configuration:
20 Hz – 26.5 GHz
2
Input
Mech Attenuator
0-70 dB, 2 dB steps with
switched DC block
Single Attenuator Configuration:
9 kHz – 7.5 GHz
Input
Fixed 20 dB stage
You can tell which attenuator configuration you have by pressing the Attenuation key, which (in most
Modes) opens up the Attenuation menu. If the first key in the Attenuation menu says
have the dual attenuator configuration. If the first key says
configuration.
Dual Attenuator
In the single attenuator configuration, you control the attenuation with a single control, as the fixed stage
has only two states. In the dual attenuator configuration, both stages have significant range so you are
given separate control of the mechanical and electronic attenuator stages.
When you have the dual attenuator configuration, you may still have only a single attenuator, because
unless you purchase the Electronic Attenuator option you will only have the mechanical attenuator.
In measurements which support the I/Q inputs, this key is unavailable when
I/Q is the selected input, and is replaced by the Range key in that case.
Contains a summary in [ ] brackets of the current total attenuation. See the
descriptions of the
page 356, and "Elec Atten" on page 358
contributors to the total attenuation.
Note that when "Pre-Adjust for Min Clip" is on, this value can change at the
start of every measurement.
Prior to A.02.00
A.03.00
2 6 10 20 30
Band
Switch
20 dB
Limiter 31 dB electronic stage
Single Attenuator
"(Mech) Atten " on page
keys for more detail on the
Limiter
25 dB Electronic
Attenuator
(optional)
Atten you have the single attenuator
AMPTD Y Scale
354, "Enable Elec Atten" on
High Band
(>~3.6 GHz)
Low Band
(<~3.6 GHz)
you
Mech Atten
353