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.
Enter
Table
Enables you
to
enter individual cal factors into the cal factor table.
Read
Cal
I
Displays the calibration factor table currently being used by the Modulation Analyzer.
I
Send
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:
/Address
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,
14).
(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
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