to the true line. The FM-IF should be wobbled at
50
Hz
with a deviation of
200
kHz; the same applies
here as above.
With low frequency deviations, occurring on wobbling in the
AM
range, for example, the frequency
marks are relatively large and apparently non-defined.
It
is, however, recommended to fix the bright
point in the middle of each frequency mark, which
is
due to the phase jump with equal wobble and
mark frequency, fig. 3.3-16.
Fig.
3.3-16
on-marked
and marked
AM-I
F transmission characteristics
Fig.
3.3-1
7
Frequency marks of the zero line and/or transmission
characteristics, with reference to frame
Fig. 3.3-18 Spectrum of frequency Fig. 3.3-19 Amplitude modulation
marks (with reference to frame) of a when wobbling with insufficient
am-
coincidence demodulator (quadrature) plitude limitation of test object
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