NewTek TriCaster 8000 - Manual (Page 169)

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8.1.3 CENTER FREQUENCY
This setting is applied when a genlock reference signal is not in use. To adjust the
setting, supply color bars to an input and pass TriCaster’s video output to a
downstream vectorscope. The vectorscope display is completely stable when
Center Frequency is properly adjusted.
Note: See also Section 8.2.3, Frame Sync .
8.1.4 FAILSAFE
FIGURE 130
TriCaster’s multi-tiered ‘Always on Air’ hardware and software failsafe systems (see
Section 2.5.2) provide confidence that short of a complete power failure the show
will go on.
In some studio settings, however, more elaborate hardware failsafe systems may be
in use. Typically, such systems take over broadcast duties whenever the output
signal fails. In such cases, TriCaster’s failsafe video passthrough mechanism (which
ensures that video output continues even in catastrophic circumstances) can
actually prevent the external system from engaging.
For this reason, a Failsafe section has been added to Output Configuration. Its sole
raison d’être is to provide a switch allowing you to disable the A/V passthrough
when necessary. By default, A/V passthrough is off.
Hint: Only use fail-safe when a stable video source is connected to video Input 8.