TB 9-6625-2345-35
Synthesizer/level
generator
Test instrument
Output amplitude
Mkr level indication
Displayed trace
below ref. (dBm)
(mV)
(Div below top graticule line)
Min
Max
Min
Max
6
392
321
4.4
3.6
12
581
450
6.4
5.6
18
660
588
7.4
6.6
(32) Reduce all outputs to minimum and disconnect equipment setup.
b. Adjustments. None
19. RF Attenuator Accuracy
a. Performance Check
(1) Connect TI RF INPUT 50Ω to synthesizer/level generator OUTPUT 50Ω.
(2) Set synthesizer/level generator for an output frequency of 50 MHz at a
level of 60 dBm with 10 dB increment steps.
(3) Press TI keys as listed in (a) through (j) below:
(a) BLUE SHIFT.
(b) RESET.
(c) BLUE SHIFT.
(d) FREQ, 5, 0, MHz +dBX.
(e) BLUE SHIFT.
(f) REF LEVEL, 6, 0, kHz dBX.
(g) VERTICAL DISPLAY 2dB/DIV.
(h) BLUE SHIFT.
(i) SPAN/DIV, 5, 0, 0, Hz dB.
(j) AUTO RESOLN (not illuminated).
(4) Rotate TI RESOLUTION BANDWIDTH knob to 1 kHz.
(5) Press TI keys as listed in (a) through (f) below:
(a) SINGLE SWEEP (twice).
(b) GREEN SHIFT.
(c) PEAK FIND.
(d) GREEN SHIFT.
(e) ∆MKR.
(f) SAVE A (illuminated).
(6) Press synthesizer/level generator INCR ⇑ key.
(7) Rotate TI MIN RF ATTEN dB knob to 10.
