Tektronix SPG8000 Technical Reference page 133

SPG8000 Technical Reference
K parameter.
XT
Display name: KXT (T Ch. H Freq.)
Units: c/aph per second (c/aph/s)
The K (T Ch. H Freq.) parameter controls the change in horizontal sine
XT
frequency over time. Setting K
frequency to increase by one c/aph each second. If K
will be 10 c/aph after ten seconds, 20 c/aph after twenty seconds, and so forth.
The frequency will increase until it reaches the maximum for the active format,
then the phase of the signal will "flip" by 180° (the sine wave will become
"negative") and the frequency will continue to "increase" through DC, when the
cycle will begin again.
K parameter.
YT
Display name: KYT (V Ch. V Freq.)
Units: c/aph per second (c/aph/s)
The K (V Ch. V Freq.) parameter controls the change in vertical sine frequency
YT
over time. Setting K
YT
increase by one c/aph each second. If KY is initially 0.0, then the frequency will
be 10 c/aph after ten seconds, 20 c/aph after twenty seconds, and so forth. The
frequency will increase until it reaches the maximum for the active format, then
the phase of the signal will "flip" by 180° (the frequency will become "negative")
and the frequency will continue to increase through DC in a repetitive cycle.
K parameter.
T
Display name: KT (T Freq.)
Units: cycles per second (c/s)
The K (T Freq.) parameter, if used alone, does not create a "pattern." Rather, the
T
entire screen will cycle (sinusoidally) between white and black. The effect will be
similar on either line or field display of a waveform monitor.
Typically, a small K coefficient is set to add apparent motion to a standard circle,
T
sine wave, or sweep pattern. To see the picture effects of this parameter, select
any of the standard zone plates and vary K
positive or negative; the sign will determine the direction of the pattern's motion.
SDI button menu (Option SDI only)
to 1.0, for example, causes the horizontal
XT
to 1.0, for example, causes the vertical frequency to
. Note that the K
T
is 0.0, then the frequency
X
coefficient may be
T
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