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