TB 9-6625-103-24
Figure 4. External Pulse Modulation.
(7) Set function generator to produce a 200 S, 2 Vp-p pulse with a width of 100 S
and turn output on.
(8) Press TI keys as listed in (a) through (f) below.
(a)
Preset.
(b)
RF On Off to off.
(c)
AMPTD, 0 and dB.
(d)
FREQ, 5, 0, 0, and MHz.
(e)
Output On Off to on.
(f)
Pulse, Pulse Source, More, Ext Pulse and Pulse Off/On to On.
(9) Set measuring receiver as listed in (a) through (h) below.
(a)
Preset.
(b)
Mode to Spectrum Analysis
(c)
Center Freq, 500, MHz.
(d)
Span to 1 kHz.
(e)
Res BW to Auto.
(f)
Amplitude set reference to top gradicule.
(g)
Markers on and peak search.
(h)
Marker delta on
(10) Set function generator output to off.
(11) Verify that the measuring receiver delta marker indication is > 80 dBc.
(12) Set function generator as listed in (a) through (f) below.
(a)
Function to Pulse.
(b)
Frequency to 1 kHz.
(c)
Pulse width to minimum
(d)
Amplitude to minimum
(e)
Offset to 1 Vdc.
(f)
Output to on.
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