TB 9-4931-535-24
(7) Press MARKER/CONTINUOUS ENTRY OFFSET key to off.
(8) Press INPUT ENTRY RANGE key and then ENTRY STEP
key.
(9) Repeat (3) through (8) above for remaining TI range settings.
(10) Press keys as listed in (a) through (c) below:
(a) MARKER/CONTINUOUS ENTRY OFFSET to off.
(c) INPUT ENTRY RANGE to -25 dBm using ENTRY STEP .
(11) Repeat (3) through (6) above.
Flatness
a. Performance Test
(1) Press keys and enter values using ENTRY keys as listed in (a) through (g) below:
ENTRY INSTR PRESET.
(a)
ENTRY STOP FREQ to 10 MHz.
(b)
ENTRY dB/DIV to 1 dB.
(c)
or .
INPUT ENTRY RANGE to .0 dBm using ENTRY STEP
(d)
RBW-VBW-ST ENTRY RES BW to 3 kHz.
(e)
RBW-VBW-ST RES BW HOLD to on.
(f)
ENTRY RECALL and then 4.
(g)
input.
(2) Connect TI TRACKING GENERATOR output to 50-75
(3) Adjust TRACKING GENERATOR AMPLITUDE control to position trace in
the middle of crt display.
(4) Allow one complete sweep to occur. Press TRACE STORE A
B key.
input.
(5) Disconnect TRACKING GENERATOR output from 50-75
f
input using a 50
eedthrough termination.
(7) Press keys as listed in (a) through (c) below:
(b) TRACE VIEW B to off.
(c) TRACE A - B to on.
NOTE
Ignore the LO feedthrough point at 0 Hz in (8) and (10) below.
(8) Adjust MARKER/CONTINUOUS ENTRY knob to move marker to the most
negative point on trace using TI marker amplitude indication.
(9) Press MARKER/CONTINUOUS ENTRY OFFSET key to on and then
MARKER/CONTINUOUS ENTRY ENTER OFFSET key.