TB 9-6625-1959-35
Figure 1. Main
circuit board left side -
adjustment locations.
9. Output
Buffer Current and Harmonic
Suppression
a. Performance Check
(1) Position controls as listed in (a) through (d) below:
MHz
display
on
FREQUENCY MHZ indicator.
(c) OUTPUT AMPLITUDE VOLTS P-P control to 5.5.
(d) AMPLITUDE MULTIPLIER switch to X1.
(2) Connect TI OUTPUT to spectrum analyzer INPUT 50 Ω.
(3) Set spectrum analyzer controls as listed in (a) through (e).
(a)
Preset.
(b)
AMPLITUDE, Ref Level to 20 +dBm.
(c)
(d)
FREQUENCY, Center Freq to 100 MHz.
(e)
SPAN to 2 MHz.
(4) Allow the spectrum analyzer to sweep a few times then set spectrum analyzer as
listed in (a) through (e).
(a) Peak Search.
(b) Marker →, Mkr→CF.
CHANGE 1