Specifications

9
Using an Agilent E4416A/17A or
E4418B/19B power meter, you can
create user flatness correction
arrays to correct RF output ampli-
tude variances at user-defined fre-
quencies. After completing a user
flatness correction, the correction
array data can be saved to the signal
generator’s memory catalog and
recalled on demand.
Follow the steps in the next sections
to create and apply user flatness
correction to the signal generator’s
RF output.
Afterward, follow the steps in
“Recalling and Applying a User
Flatness correction Array” to recall
a user flatness file from the memory
catalog and apply it to the signal
generator’s RF output.
Creating and Applying User Flatness Correction
Creating a user flatness
correction array
In this example, you will create a
user flatness correction array. The
flatness correction array contains
ten frequency correction pairs
(amplitude correction values for
specified frequencies), from 1 to
10 GHz in 1-GHz intervals.
An Agilent E4416A power meter
(controlled by the signal generator
via GPIB) and E4413A power sensor
are used to measure the RF output
amplitude at the specified correc-
tion frequencies and transfer the
results to the signal generator. The
signal generator reads the power
level data from the power meter, cal-
culates the correction values, and
stores the correction pairs in the
user flatness correction array.
If you do not have the required
Agilent power meter or GPIB
interface, you can enter correction
values manually.
Required equipment
• Agilent E4416A power meter
• Agilent E4413A E Series CW power
sensor
• GPIB interface cable
• adapters and cables, as required
NOTE The equipment setup in
Figure 3-5 assumes that if the setup
has an external leveling configuration
you have followed the necessary steps
to correctly level the RF output. If you
have questions about external leveling,
refer to Using External Leveling.