Tektronix TG8000 User Manual

SDI7 Dual Channel SD/HD/3G SDI Video Generator module
K
XT
parameter
Display name: K
XT (T Ch. H Freq.)
Units: c/aph per second (c/aph/s)
The K
XT
(T Ch. H Freq.) parameter controls the change in horizontal sine
frequency over time. Setting K
XT
to 1.0, for example, causes the horizontal
frequency to increase by one c/a ph each second. If K
X
is 0.0, then the frequency
will be 10 c/
aphaftertenseconds,20c/aphafter 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 t he
cycle will begin again.
K
YT
parameter
Display name: KYT (V Ch. V Freq.)
Units: c/aph per second (c/aph/s)
The K
YT
(V Ch. V Freq.) parameter controls the change in vertical sine frequency
over ti
me. Setting K
YT
to 1.0, for example, causes the vertical frequency to
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
T
pa
rameter
Display name: KT (T Freq.)
Units: cycles per second (c/s)
The K
T
(T Freq.) parameter, if used alone, does not create a “pattern.” Rather, the
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
T
coefficient is set to add a pparent motion to a standard circle,
sine wave, or sweep pattern. To see the picture effects of this parameter, select
any of the standard zone plates and vary K
T
. Note that the K
T
coefficient may be
positive or negative; the sign will determine the direction of the pattern’s motion.
K
T
2
parameter
Display name: KT^2 (T Sweep)
Units: cycles per second per second (c/s^2)
The K
T
2
(T Sweep) parameter sets the change i n temporal frequency over time. If
K
T
is initially 0.0, setting K
T
2
to 1.0 will result in an apparent K
T
of 10.0 after ten
seconds, 20.0 after twenty seconds, and so forth. The temporal frequency will
increase to maximum, return to 0.0, and repeat the cycle as long as the value of
K
T
2
remains greater than zero.
3–280 TG8000 Multiformat Test Signal Generator User Manual

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English