TB 9-6625-1959-35
(c) Marker, Delta.
(e) Peak Search.
(5) The spectrum analyzer ∆Mkr will indicate less than or equal to the minimum
limit listed in table 3. If spectrum analyzer is not less than or equal to the minimum limit
listed in table 3, perform b below.
in table 3.
Spectrum analyzer
Test
Indication
Instrument
(dB)
Frequency Harmonic
minimum (≤)
frequency Harmonic
(MHz)
100 MHz
200 MHz
2nd
-35
100 MHz
300 MHz
3rd
-40
(7) Adjust OUTPUT AMPLITUDE VOLTS P-P control to 3.0.
(8) Repeat (3) through (6) above.
(9) Adjust OUTPUT AMPLITUDE VOLTS P-P control to 0.5.
(10) Repeat (3) through (6) above.
40 dB down from reference while assuring that second harmonic amplitude remains 35 dB
down from reference. If second harmonic is equal to or greater than 35 dB down, do not
adjust CURRENT ADJ R175 (fig. 2) to reduce second harmonic at expense of increasing the
third (R).
6
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