TB 9-6625-2340-24
(4) Adjust DATA knob to position trace at (or just below) reference level (top)
graticule line.
(5) Press TI SWEEP SINGLE key.
(6) Press TI MARKER NORMAL key and adjust the DATA knob to place marker
at the peak of the signal trace.
(7) Press MARKER
key and position moveable marker 3 dB down from the
stationary marker on the positive slope of the signal trace (marker
indication on TI
display should be 3.00 dBm).
key and position moveable marker 3 dB down from the
(8) Press MARKER
stationary marker on the negative slope of the signal trace (marker
indication on TI
display should be 0.00 dBm).
(9) If TI marker frequency readout displayed is not within limits specified in first
row of table 7, perform b below.
(10) Record TI displayed indication in actual indication column of table 7.
(11) Repeat technique of steps (3) through (8) and (11) above for remaining
bandwidths and frequency spans listed in table 7. If TI marker
frequency readouts
displayed are not within limits specified in table 7, perform b below.
Table 7. 3 dB Bandwidth Accuracy
Test instrument
r Marker
RES BW
FREQUENCY
eadout @ 3 dB
SPAN
key
key
Min
Max
Actual indication
3 MHz
5 MHz
2.400 MHz
3.600 MHz
1 MHz
2 MHz
900
kHz
1.100 MHz
300 kHz
500 kHz
270.0
kHz
330.0
kHz
100 kHz
200 kHz
90.0
kHz
110.0
kHz
30 kHz
50 kHz
27.00
kHz
33.00 kHz
10 kHz
20 kHz
9.00
kHz
11.00 kHz
3 kHz
5 kHz
2.700 kHz
3.300 kHz
1 kHz
2 kHz
800
Hz
1.200 kHz
300 Hz
500 Hz
240
Hz
360
Hz
100 Hz
200 Hz
80
Hz
120
Hz
30 Hz
100 Hz
24.0
Hz
36.0
Hz
10 Hz
200 Hz
8.0
Hz
12.0
Hz
(12) Press TI keys as listed in (a) through (g) below:
2-22 GHz.
(a)
CENTER FREQUENCY, 100, MHz.
(b)
FREQUENCY SPAN, 25, MHz.
(c)
RES BW, 3, MHz.
(d)
VIDEO BW, 100, Hz.
(e)
SWEEP SINGLE.
(f)
MARKER NORMAL.
(g)
(13) Position marker at peak of signal trace.
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