TB 9-6625-2049-24
Table 4. Flatness
Test instrument
and measuring receiver
settings (MHz)
1
2
4
6
8
10
12
14
16
18
20
b. Adjustments. No adjustments can be made.
15. Square Wave Amplitude and Flatness
a. Performance Check
f
(1) Connect TI SIGNAL to multimeter INPUT HI and LO using 50
eedthrough termination.
(2) Press keys and enter values using DATA keys as listed in (a) through (i) below:
SIGNAL off (option 002 not lit).
(a)
ENTRY DC OFFSET.
(b)
0 VOLT.
(c)
FUNCTION square wave.
(d)
ENTRY AMPTD.
(e)
5 V RMS.
(f)
ENTRY FREQ.
(g)
100 Hz.
(h)
AMPTD CAL.
(i)
(3) Multimeter will indicate between 4.95 and 5.05 V ac.
(4) Enter 1 kHz using DATA keys. Multimeter will indicate between 4.95 and 5.05 V ac.
(5) Enter 100 kHz using DATA keys. Multimeter will indicate between 4.95 and 5.05 V ac.
(6) Press keys and enter values using DATA keys as listed in (a) through (d) below:
1 kHz.
(a)
ENTRY AMPTD.
(b)
1 V RMS.
(c)
AMPTD CAL.
(d)
(7) Multimeter will indicate between 0.99 and 1.01 V ac.
(8) Disconnect TI from multimeter.
f
(9) Connect TI SIGNAL to oscilloscope Vertical 1 input using 50
eedthrough termination.
