TB 9-5915-215-40
(5) Press the spectrum analyzer Peak Search, Marker, Delta keys.
analyzer will indicate as listed in table 4.
Figure 2. Harmonic rejection.
(8) Repeat technique of (2) through (7) above for the remaining thumb wheel and
frequency setting listed in table 4.
Table 4. Harmonic Rejection
Test instrument
Signal
Spectrum analyzer
Center
Thumb
frequency
Level indication
wheel
#
(Hz)
(Hz)
(dB)
01
---------------
135
k
135
k
Ref
50
---------------
2
270
k
270
k
50
---------------
3
405
k
405
k
50
---------------
4
540
k
540
k
02
---------------
300
k
300
k
Ref
50
---------------
2
600
k
600
k
50
---------------
3
900
k
900
k
50
---------------
4
1.2 M
1.2 M
03
---------------
600
k
600
k
Ref
50
---------------
2
1.2 M
1.2 M
50
---------------
3
1.8 M
1.8 M
50
---------------
4
2.4 M
2.4 M
04
---------------
1.0 M
1.0 M
Ref
6