4. On the HP
438A,
press
(REL).
This sets the current power level for relative
power measurement.
. . . .
_
. .
. . . .
5.
h
the
network
maJyzer,
press
LMenu_]
@@&
~~~~~~~~~~~
1--15)
a).
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
..~...~ ii
.:
. . . . . . .
. . . . . . . . . . . . . . . . . . . . .
.:::::
/i............i
.
.
. . . . . . . .
.%
___.__.......
6.
Write the power meter reading in the “Results Measured” column on the
U
Performance
Test
Record.
’
7. Calculate the difference between the analyzer test port power (which
appears on the analyzer’s display) and the power meter reading. Write the
result in the “Power Level Linearity” column on the “Performance Test
Record.
n
8. Repeat steps 5 through 7 for the other power levels listed in the
“Performance Test Record.
n
9. After all required power levels have been measured, press
@
Lxl)
to reset
power to 0
dRm.
. . . .
/
.;...
:..
/;.
10.
Press
~~~~~~:
@a.
.._......_.._.__
-
_........
11. Set the power meter calibration factor for this CW frequency and press
m
to set the reference at this new frequency.
12. Press
m
g&$&&Y
L-15]
Lxl).
_........
.
13. Write the power meter reading in the “Results Measured” column on the
“Performance Test Record.
n
14. Calculate the difference between the analyzer test port power and the
power meter reading. Write the result in the “Power Level Linearity”
column of the “Performance Test Record.”
15. Repeat steps 11 through 13 for the other power levels listed in the
“Performance Test Record.
n
16. Repeat steps 9 through 13 for 6
GHz
using
8481A
sensor.
In Case of
Dii3culty
1. Ensure that the power meter and power sensor(s) are operating to
specifications. Be sure you set the power meter calibration factor for the CW
frequency that you are testing.
Syctem
Verification and
2-29
Performance
Tests
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