Step 4. Select CHANGE AUTOCAL SETUP. This causes
MENU ACAL_SETUP (left) to appear.
Step 5. Enter a SWITCH AVERAGING value of 8.
To improve the effect of switch repeatability error
with the 36582 series (mechanical switch), you can
change the switch averaging. Note, however, that
switch averaging will have no affect on the 36581 se-
ries (electronic switch).
Step 6. Select FULL 2 PORT. This displays a menu (MENU
ACAL_FULL) that lets you set up the calibration
(bottom left).
You could have also selected S11 1-PORT, S22
1-PORT,orADAPTER REMOVAL. The last of
these lets you remove the effects of an adapter used
in the calibration.
Step 7. Select the PORT CONFIG setting that matches the
physical setup (R-1, L=2 or L=1, R=2).
It is critical to ensure the correct module orientation
is established. Each side (left) and right) of the mod-
ule is labeled.
Step 8. Select the THRU TYPE to be either CALIBRATOR
or TRUE.
By default, the CALIBRATOR (internal) thru stan-
dard is used for the Thru Calibration. The transmis-
sion response of the calibration may be improved by
selecting the TRUE thru standard. This will result
in an added manual step.
Step 9. Observe that OMIT is shown for the ISOLATION
AVERAGING.
Isolation may be omitted (default). You may also se-
lect DEFAULT to use the default value during the
isolation step. You may also use your own AVER-
AGING FACTOR. Including isolation involves a
manual step for the 36581 models.
Step 10. Ensure the AutoCal module is properly connected
between Ports 1 and 2, then select START
AUTOCAL.
37xxxE OM 10-11
AUTOCAL USING AUTOCAL
MENU ACAL_SETUP
AUTOCAL SETUP
LINE TYPE
COAXIAL/WAVEGUIDE
WAVEGUIDE CUTOFF
XX.XXXXXX GHz
SWITCH AVERAGING
8
NUMBER OF AVGS
REFLECTION
XXXX
LOAD
XXXX
THRU
XXXX
ISOLATION
XXXX
AUTOCAL TYPE
SII 1 PORT
S22 1 PORT
FULL 2 PORT
ADAPTER REMOVAL
MENU ACAL_FULL
AUTOCAL
FULL 2-PORT
ISOLATION
AVERAGING
OMIT
DEFAULT
AVERAGING
FACTOR
XXXX
THRU TYPE
CALIBRATOR/TRUE
PORT CONFIG
L=1, R=2
R=1, L=2
START AUTOCAL
PRESS <ENTER>
TO SELECT
OR SWITCH