TB 9-6625-2339-35
Synthesizer/level
Test instrument
REF LVL
MKR1 ∆ indications
settings
settings
(dB)
(dBm)
(dBm)
Min
Max
+2
-10
-9.7
-10.3
-8
-20
-19.7
-20.3
-18
-30
-29.7
-30.3
-28
-40
-39.7
-40.3
-38
-50
-49.5
-50.5
-48
-60
-59.5
-60.5
-58
-70
-69.5
-70.5
-68
-80
-79.3
-80.7
-78
-90
-89.3
-90.7
(43) Press TI keys as listed in (a) though (d) below:
(a) Preset.
(b) System.
(c) [Alignments].
(d) [Auto Align], [All].
(44) Set all outputs to minimum and disconnect equipment setup.
b. Adjustments. None
14. Resolution Bandwidth Switching Uncertainty
a. Performance Check
(1) Connect TI AMPTD REF OUT to RF INPUT 50Ω.
(2) Press TI keys and enter values as listed in (a) through (k) below:
(a) Preset.
(b) Factory Preset softkey if it is displayed.
(c) Sweep, [Points 401].
(d) Input/Output (or Input), [Amptd Ref Out] (On).
(f) SPAN, 5, [kHz].
(g) AMPLITUDE, [More], [Y Axis Units] (or Amptd Units), [dBm].
(h) AMPLITUDE, 19, [-dBm].
(i) AMPLITUDE, [Scale/Div], 1, [dB].
(j) BW/Avg, [Res BW], 1, [kHz] (Man).
(k) BW/Avg, [Video BW], 1, [kHz] (Man).
(3) Press AMPLITUDE and adjust RPG knob to place the displayed signal 5
divisions below the reference level.
(4) Press TI keys as listed in (a) through (c) below:
(a) Peak Search (or Search).
(b) Marker→, [Mkr→CF].