9. The DEFINE STANDARD menu for the selection of
“type”
has been
changed.
access this menu, press
CAL
DEFINE STANDARD The
choices of open, short, load, delay/thru, and arbitrary impedance now work the same as
the choices in other “one-of-n” menus. (For a “one-of-n” menu example, press the
key.) The DEFINE STANDARD menu remains displayed after pressing
,
or
,
or
whatever “type” the user has selected, thus showing the latest selection for a particular
calibration standard number. Further, a new message box appears above the active entry for
calibration standard number. The message reads, “Select with arrow keys, then press
MODIFY STD”. Pressing the new
then brings up the menu
appropriate for the “type.” For example, if an open was selected, the CO Cl’, etc. menu
appears. If a load was selected, the FIXED
etc. menu appears.
These changes help the front panel user only. HP-IB operation remains unchanged.
Problems Fixed
1. Fixed the problem experienced with downloading cal coefficients using INPUCALC when the
number of coefficients in the current I-state does not match the download number of points.
2. Fixed the slow HP-IB access to the internal disk.
3. Fixed the inadvertent test set switching by programming the test port on each sweep.
HP 8753D (including Option 011) only.
4. Fixed the sampler correction phase error experienced when measuring B/R with an IF
bandwidth setting of 3700 Hz. HP 8753D (including Option 011) only.
5. Option 011, HP 85047A Test Set: fixed the unwanted activation of the doubler during
attenuator changes. HP 8753D (including Option 011) only.
6. Fixed the POSSIBLE FALSE LOCK error message from appearing at incorrect times.
HP
only.
7. Option 400: fixed the loss of phase lock experienced under the following
during the first sweep after test set switching, with power meter calibration on one port.
HP
only.
8. Fixed R channel drop-out when sweeping under the following conditions- CF= 2.55
Span= 100 MHz. HP
only.
Firmware Revision 6.12
Firmware Enhancements and Features
Firmware Revision 6.12 merges the codes of the HP 8753D (including Option 011) and the
HP
Network Analyzers.
Carry-Over From the HP
Network Analyzer. The following
enhancements and features are a carry-over from the HP
but are
new in firmware revision
6.12 to the
8753D (including Option 011):
1. There are now 5 markers per channel (previously 4 per channel). The MARKER FCTN menu
has been revamped accordingly.
Calibration features, such as the
DO BOTH FWD REV in Full 2-Port or TRL
calibration, are improved and more user friendly. It is easier to modify or create a
kit because separate TRL class entries are now allowed. HP-IB commands are like
for
the HP 8510 Network Analyzer.
Installation Note 08720-90372
17
