When an HP 437B power meter is used to automatically enter the
correction data, the correction calibration routine automatically turns
off any active modulation, then re-activates the modulation upon
the completion of the data entry process. Therefore, the scalar pulse
modulation that is automatically enabled in a scalar measurement
system is disabled during an HP 437B correction calibration.
Note
The user flatness correction array cannot be stored to a disk. You
must make sure that the array is stored in one of the eight internal
registers. Recalling a file from an HP 8757 disk will not erase the
current array; therefore you may recall an array from an internal
register, then recall an associated file from a disk.
For
1.
2.
3.
4.
5.
6.
7.
8.
9.
this example, refer to menu map 5, POWER.
The equipment setup shown in Figure 1-21 assumes that
you have followed the steps necessary to correctly level the
configuration. If you have questions about external leveling, refer
to “Externally Leveling the Swept Signal Generator”.
On the analyzer, press
I-).
Reset the analyzer and swept
signal generator to a known state.
Setup System Parameters
On the swept signal generator, press FREQUENCY
ISTART)
@
(GHz),
ISTOP)
@
@
IGHz).
Set the swept signal generator for a
frequency sweep of 2 to 20 GHz.
Press (POWER
LEVEL)
0
(dBm.
Where n = maximum available
power.
On the analyzer, set up the appropriate measurement
(i.e. gain for an amplifier). Calibrate the measurement (thru and
short/open calibration). Press
ISAVE)
0
to store the analyzer’s
configuration and swept signal generator parameters in storage
register 1.
Turn off the HP 8757 System Interface. Use the analyzer
SYSINTF ON OFF softkey found under the SYSTEM menu to
deactivate the system interface.
Access User Flatness Correction Menu
On the swept signal generator, press POWER
(MENU).
Select
Fltness Menu.
Select
Del.ete
Menu Delete All. This step insures that the
flatness array is empty.
Press (PRIOR). Leave the delete menu and return to the previous
soft key menu.
1-44 Getting Started Advanced
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