10 Mhz Calibration Procedure - HP 8340B Manual

When the Start softkey
is
selected,
the program
will request the serial
number
of the
power sensor
and then the Cal Factors for each sensor data
point
The
10 MHz
data point entry should be the value
determined
In paragraph 6.3 After
entering
all of the data, you
will be given the opportunity to
make
corrections
If
necessary When making
a
correction, enter the frequency
In error as shown in
the
"Freq" column and then enter the correct
value Answer the rest of the questions supplied
in
the
program and then press Return
to
return to the
CALIBRATION UTILITIES
menu
6.3
10 MHz Calibration Procedure
Equipment Required:
Power Meter
. „
„....
„ „ „ „ - . „
. „ . „ „ „ „ „
-
„ .... ,
HP 436A Option 022
Power Sensor
„....„..„.
. - - „ „ „ -
....
. . „
„
- „
„ „
-
HP 8481A
Power Sensor
„ „ „-.„„„„ .
-
„„„.„- -„.„
„
-
...„
„„„ „
HP 8485A
Adapters:
APC 3.5 (f) to APC 3.5 (f)1
- - „ „
„ „
-
„ „
-
......
, , .
HP P/N 5061-5311
APC 35 (f) to Type
N (m)
„ „ „ „ . „ „ . „ ..„.„. . .
HP P/N 1250-1744
APC 3.5 (f) to Type
N
(f)i
.„„„„„„„..„. .,..
HP P/N 1250-1745
1.
Connect the HP 8481A power sensor
to
the power meter- Allow at least one half hour for
warm up Set the power meter's calibration factor switch
to include 10
MHz,
then zero and
calibrate the
power meter before connecting
the
power sensor
to the
DUT.
2 Connect the HP 8481A power sensor
to the
DUT's RF output
3
On the
DUT, press [INSTR PRESET] [CW] [1] [0]
[MHz].
Press [RF] OFF Zero
the
power
meter, Press the DUT's [RF]
key ON. On the
DUT, press [POWER LEVEL] Using the
rotary knob, adjust the DUT's
output power to obtain
a
10
milliwatt Indication on the
power meter
4
Disconnect
the
HP 8481A power sensor
from the DUT- Turn the power
meter's
line switch
OFF and replace the HP 8481A
with the
HP 8485A
power sensor Turn the power meter's
line switch back on and allow
15
minutes for the sensor to stabilize
Zero and
calibrate the
power meter.
5 Press the DUT's [RF] OFF. Connect
the
HP 8485A power sensor to
the
DUT.
6
Zero the power meter and
then press
the DUT's [RF] ON. Adjust the power meter's
calibration factor dial for
a
power meter
indication of
1 0
milliwatt. The
power meter
cal¬
ibration factor setting Is the Cal
Factor
°o
which should be entered for the HP 8485A's 10
MHz
data
point-
1 Required for an HP
8340A/B DUT
only
20
Running
the Cal Utilities HP
8340A/B
and
HP 8341A/B