Studio Technologies 230 2008 - Manual (Page 8)

Issue 7, October 2008 Model 230 User Guide
Page 8 Studio Technologies, Inc.
Model 230 is used in a production-support
application.
The main button mode configures how the
main output, when it is in the “latched” on
state, responds to talkback activity. One
choice momentarily turns off the main
output when talkback is active, returning
the main output to the on state when the
talkback function has ended. The other
choice “unlatches” the main output in
response to a talkback function.
IFB Input
A broadcast-standard “wet” (DC with
audio) IFB circuit can be directly con-
nected to the Model 230’s IFB input.
Originated by sources such as the RTS™
4000-series IFB system or IFB interface
devices from Studio Technologies, the
connected IFB circuit can provide DC
power to operate the Model 230 as well
as two channels of cue audio.
Cue Sources
The Model 230 supports the connection
of up to six audio sources, each of which
can be selected for routing to the stereo
headphone output. The sources are IFB
channel 1, IFB channel 2, line input 1, line
input 2, intercom channel 1, and intercom
channel 2. Each source can be individu-
ally assigned to the left channel, right
channel, or both left and right. This allows
a wide variety of stereo and mono head-
phone mixes to be created.
The two audio signals associated with
the Model 230’s IFB input can be assign-
ed to the headphone output. Originating
in production trailers or control rooms,
the IFB circuits typically provide DC
power and program-with-interrupt audio
on one channel and program-only audio
on the other.
For application flexibility, two line-level
audio sources can be connected to the
Model 230. Possible signal sources
include off-air receivers, wireless IFB
systems, and audio consoles. The con-
nected signals can be from two indepen-
dent sources, or could be from a stereo
audio feed such as would be associated
with a broadcast music event. Two level
trim potentiometers, located on the bottom
of the unit, allow signals with wide nominal
audio levels to be cleanly interfaced.
Audio signals associated with a single-
or dual-channel intercom system can
be routed to the headphone output. The
Model 230’s intercom interface is com-
patible with standard party-line intercom
systems from manufacturers such as RTS
and Clear-Com®.
Headphone Output
Two rotary controls are provided for user
adjustment of the headphone output
levels. For application flexibility the actual
function of the two “pots” is configurable.
For traditional on-air sports applications
they can be selected to the dual level
control mode which provides independent
control of the left and right channel vol-
ume. For use with stereo cue signals, or to
support user preference, the level/balance
mode can be selected. In this mode one
control adjusts the overall level of both
the left and right channels, while the other
allows adjustment of the left/right level
balance. To help minimize the chance of
broadcast cues being missed, both level
control modes can be configured so that a
minimum headphone output level is main-
tained. Alternately, the headphone output
can be set to fully mute when the controls
are at their minimum position.