Video
Central houses the pulse distribution, studio controlroom switecher
electronics and other camera controls for seven live cameras.
Originally there were seven TK-41 cameras installed, but four
of these have been replaced with TK-44A's and the remaining three
TK-41's will be replaced with TK-44's in the near future. Here
again, these cameras are set up on a delegate system so they may
be used in any combination in any studio. The studios are also
set up so any controlroom may be used with any studio space. In
this manner, a controlroom may be taken out of service for modification
or rebuilding.
Regular
and emergency sync generators are driven by a Rhubidium standard
located at Master Control so the plant may be phased inro an incoming
remote, or phased so that video transmitted to the network will
arrive in New York in time with their video for minimum switching
disturbance when we are inserting segments to the network. This
is done for the Today Show and Huntley-Brinkley Report
on a routine basis. A third sync generator is available for driving
a portion of the plant when it is desired to split off from the
main generators.
Pulse
distribution is handled by a single cable system. Each sync generator
drives a black burst generator. Each studio also drives a black
burst generator. The outputs of the crossbar are fed to the individual
cameras where a genlocked sync generator st each camera control
makes the necessary pulses for that camera. This makes it possible
(depending on the input selected for each camera chain) for the
chain to be synchronous with the plant or an incoming remote or
network feed so that switching disturbances are minimized, and
so supers, inserts or other effects may be used with incoming
material. |
