Port
1
Noise
Floor
Level
from
300
kHz
to
3
GHz
(lFHw
=
3kHz)
1. Connect the equipment as shown in
F’igure
2-16.
HP
8753E
NETWORK ANALYZER
50R
TERM,NAmJNS
sg614e
Figure 2-16. Source Input Noise Floor
‘l&t
Setup
5. When the analyzer
finishes
the sweep, notice the mean value (which
appears on the analyzer display).
6. Convert the measured linear magnitude mean value to log magnitude, using
this equation.
Power
(dBm)
= 20 * [log&near
magnitude
mecrn
value)]
Note
Notice that the mean value that is displayed on the analyzer is
in ~Units So, for example, if the displayed value is 62
/rU,
the
value
that you would put in the equation is (62 x
106).
7. Write this calculated value on the “Performance
Test
Record.”
2-36 System Verification and
Performance Tests
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