Fluke Wavetek-Datron 395 - Signal Plus Comb

4.4.12.17 Signal Plus Comb
Signal plus comb "sig+comb" (figure 4-87) allows any standard or arbitrary wavefonn
to be added to comb waveform with precise control
of the signal to comb level.
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Figure 4-87. Signal Plus Comb
(75% Signal Vp-p) Spectrum Analyzer
Signal Plus Comb Setup
To setup signal plus comb, select "sig+comb setup" from the Standard Waveform
screen (figure 4-88).
STANDARD WAVEFORMS
o comb setup 0
<> sig+noise setup <>
o sig+comb setup .
Figure 4-88. Standard Waveform
The first screen, Comb Frequency Band, (figure 4-89) sets the start and stop frequencies
(0
Hz to 10 MHz). The comb bandwidth stop frequency must he greaterthan 111% of
the comb bandwidth startfrequency, or a 0.9:1 start to stop frequency ratio.
COMB FREQUENCY BAND
• start: 0..000 Hz
o stop: 1.000 MHz
o exit done 0
Figure 4-89. Comb Frequency Band
Press F8, "done," to advance to the Signal Definition screen, or press F4, "exit," to
return to the Standard Waveform screen.
Signal Definition (figure 4-90) selects the waveform (signal)
and programs the
wavefonn frequency.
4-60 Front Panel Operation Reference
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