HP 8340B Manual page 183

ENTERING THE POWER SENSOR (HP 8485A) CALIBRATION DATA
1.
Select the softkey [Pwr Sensor Cal].
A softkey menu that gives you the options of [Start],
[Display], and
[Return] is
displayed.
[Start] begins entry of the calibration
data.
[Return] returns to the
CALIBRATION UTILITY menu.
[Display] shows
the calibration data stored
in
power sensor data
file.
2.
Before selecting [Start],
perform the 10
MHz
calibration procedure described below.
3.
When
you select [Start],
the program requests the power sensor serial number, and the
cal
factors for each sensor data
point.
The
10
MHz data
point
is the value determined in the
10
MHz
calibration procedure.
4.
After you enter all the data, you have the opportunity to make
corrections,
if
necessary.
When making
a
correction, enter the frequency in
error as shown
in the Freq column, then enter
the correct value.
5.
Answer
the rest of the questions supplied in the program and select [Return] to return
to the
CALIBRATION UTILITY
menu.
10 MHZ CALIBRATION PROCEDURE
Test Equipment
Power Meter
.............................. ...
..
HP 436A Option 022
Power Sensor
.................................................
HP 8481A
Power Sensor
.................................................
HP 8485A
Adapters:
Precision
3.5
mm (f)
-
(f)i
...........................
HP Part No. 5061-5311
Precision 3.5 mm
(f)
-
Type
N (m)
........... ......
HP Part
No.
1250-1744
Precision 3.5 mm (f)
-
Type
N
(f)i
....................
HP Part No.
1250-1745
1
Required for an
HP 8340A/B
only.
1.
Connect the HP 8481A power sensor
to the
power meter
and select
WATT
mode. Allow at least
one half hour for warm up.
2.
Set the power meter calibration factor switch to include 10
MHz.
3.
Zero and calibrate the power meter before connecting the
power sensor
to the
DUT.
4.
Connect the HP 8481A power sensor to
the
DUT's RF
output.
6-2
Running the Cal Utilities
Attenuator Calibration and Operation Verification Test Software