TB 9-6625-2346-35
within limits specified in first row of table 8 throughout entire frequency range sweep.
(34) Repeat technique of (30) through (33) above for remaining TI settings and
oscilloscope calibrator outputs in table 8. Displayed waveform amplitude will be within
limits specified in table 8 throughout entire frequency range sweep.
Oscilloscope calibrator
Test instrument
LEVEL SINE mode output
Amplitude
Frequency sweep
VOLTS/DIV
A AND B
Amplitude limits
SEC/DIV
(divisions)
20 s
≥ 4.2
12 mV
50 kHz to 90 MHz
2m
1
20 s
≥ 4.2
60 mV
50 kHz to 100 MHz
10 m
1
20 s
≥ 4.2
3.0 V
50 kHz to 100 MHz 1
.5
Press Set to 50 kHz blue soft pushbutton to quickly return to 50 kHz.
1
b. Adjustments
(1) Disconnect equipment setup.
(2) Set CH 1 AC GND DC switch to AC.
(3) Set CH 1 VOLTS/DIV switch to 50m.
(4) Adjust CH 1 ⇕POSITION control to position trace on center horizontal
graticule line.
(5) Set CH 1 VOLTS/DIV switch to 5m.
(6) Adjust R10 (fig. 1) to position trace on center horizontal graticule line.
(7) Repeat (3) through (6) above for minimum trace shift when setting CH 1
VOLTS/DIV from 50m to 5m.
(8) Adjust CH 1 ⇕POSITION control to position trace on center horizontal
graticule line.
(9) Set CH 1 VOLTS/DIV switch to 2m.
(10) Adjust R33 (fig. 1) to position trace on center horizontal graticule line.
(11) Set CH 1 VOLTS/DIV switch to 5m.
(12) Repeat (8) through (11) above for minimum trace shift when setting CH 1
VOLTS/DIV from 5m to 2m.
(13)Connect oscilloscope calibrator CHAN 1 to TI CH 1 using a 50Ω feedthrough
termination.
(14) Position TI switches as listed in (a) through (c) below:
(a) CH 1 VOLTS/DIV to 10m.
(b) CH 1 AC GND DC to DC.
(c) A AND B SEC/DIV to 20 s.
10
