Hp-Ib) - HP 8901B Operation And Calibration Manual

Model 8901B Operation
RF Power Calibration Factor Entry Example Program
DESCR I PTl ON
The program list can be used to enter the RF power calibration factor (cal factor) table using an HP
series 200 controller loaded with BASIC 3.0. (Cal factors are entered and stored in an internal table
in the Modulation Analyzer's non-volatile memory-refer
to RF Power.) It
might be useful to use this
program to enter the cal factor table rather than entering the cal factors manually.
You may want to modify this program. For example, to increase the number of cal factors that can be
entered into the table, change program lines 220,300, and 500 to specify to 16 rather than to 10. When
running this program, softkeys are set up with the following labels:
Allows you to enter the HP-IB address of the Modulation Analyzer.
Displays the table of cal factors just entered. These are not necessarily the cal factors being used by
the Modulation Analyzer.
E n t e r
T a b l e
Enables you to enter individual cal factors into the cal factor table.
R e a d Cal
I
Displays the calibration factor table currently being used by the Modulation Analyzer.
I
S e n d
I
Loads the calibration factor table into the Modulation Analyzer that was entered with
I
Enter
Tab 1
e
I.
PROCEDURE
Enter the program into an
HP
series 200 controller
and
connect the Modulation Analyzer (via
HP-IB)
to the controller. Connect the power sensor or sensor module to the Modulation Analyzer's SENSOR
input. (The power sensor cable need not be connected to the source at this time.)
Follow the steps below to use the program. (Note that words that have brackets around them like
this:<RUN>, are keys on the controller. Words in boxes like this:
/ A d d r e s s
1,
are softkeys
displayed on the controller's screen.)
1. Select
<Run>.
2. Select softkey,
1 - 1
and enter the three-digit code that comprises the controller's
select code (for example, 7) and the Modulation Analyzer's address (for example, 1 4 ) . (Display the
Modulation Analyzer's address by selecting BUS ADRS-Blue Key, LOCAL-on the Modulation
Analyzer.) For these examples, you would type in:
7 1 4 <ENTER>
3. If you want to display the cal factors currently being used by the measuring receiver, go to step 7.
RF Power Calibration Factor Entry Example Program
3-81