
14.
Average
Noise
Level
Test
Related
Adjustment
Specification
Description
Equipment
Procedure
Last Converter Adjustments
Displayed average noise level (0
dB
input attenuation, 10 Hz
resolution bandwidth):
Non-Preselected
c-95
dBm,
100 Hz to 50
kHz
c-112
dBm,
50
kHz
to 1 MHz
c-134
dBm,
1 MHz to 2.5
GHz
Preselected
c-132
dBm,
2.0
GHz
to 5.8
GHz
c-125
dBm,
5.8
GHz
to 12.5
GHz
c-119
dBm,
12.5
GHz
to 18.6
GHz
c-114
dBm,
18.6
GHz
to 22
GHz
The displayed average noise level is measured in a 10 Hz bandwidth at
various frequencies with no signal applied to the analyzer input.
50 Ohm Coaxial Termination . . . . . . . . . . . . . . . HP
909A,
Option 012
1.
Press
C-1.
2. Connect CAL OUTPUT to RF INPUT.
3. Press
LRECALL)
@. Adjust AMPTD CAL for a MARKER amplitude
of -10.00
dBm
f0.02
dB.
4. Disconnect CAL OUTPUT. Terminate RF INPUT with a 50 ohm
coaxial termination.
5. Press
@YYZZ].
Key in settings as follows:
START
FREQ]
[&Ti?Ei,
..............................................
..8 0 Hz
................................................
180 Hz
REFERENCE LEVEL]
[m,
.......................................
-70
dBm
0
dB
VIDEO BW
......................................................
.................................................
Hz
6.
Press (SHIFT)
(VIDEO)
G.
Wait about 2 minutes for the VID AVG
readout to reach 10 sweeps or more, then press [SHIFT), TRACE B
@iiimJ
7. Press MARKER
(NORMAL).
Tune to 100 Hz, or the nearest
frequency that is not on the slope of the LO feedthrough or on a
line-related sideband (e.g., 120 Hz). Refer to Figure 2-26.
2-58 Performance Tests
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