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17. Line-Related
Sidebands Tests
Specification
Description
Equipment
Procedure
the peak of a CW signal.
The spectrally pure calibrator signal of the spectrum analyzer is
applied to the analyzer input and the line related sidebands near the
signal are measured.
None required
on
1. Press
)
PRESET
SIGNAL INPUT 2.
2.
Press C-j 8 and adjust AMPTD CAL for a MARKER amplitude
of -10.00 dBm f0.02 dB.
3.
Press
4.
Key in the following analyzer settings:
[
)
CENTER FREQUENCY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10 dBm
[
]
REFERENCE LEVEL
] . . . . . . . . . . . . . . . . . . . .
S P A N
5.
Wait for completion of sweep, then press MARKER
[
P E A K
6.
Press (SHIFT) (-1 G, SWEEP @'i7ZZ], 10 (j-/Iv to initiate
video averaging of 10 sweeps. Wait for completion of sweeps.
7.
Press MARKER
(
PEAK
the peak of each line related sideband (120 Hz, 180 Hz, and 240 Hz
for 60 Hz line frequency; 100 Hz, 150 Hz, and 200 Hz for 50 Hz
line frequency, etc.). The MARKER A amplitude for each sideband
should be c-85 dB (see Figure 2-31).
120 Hz (100 Hz)
180 Hz (150 Hz)
240 Hz (200 Hz)
the analyzer. Connect CAL OUTPUT to
.20
and position movable marker at
MHZ
600 Hz
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