Studio Technologies 750 - Manual (Page 9)

Model 750 User Guide Issue 3, May 1997
Studio Technologies, Inc. Page 9
Model 750
front panel, allow the interrupt function to
be configured; one switch selects whether
the monitor speaker output will be inter-
rupted by the AUX signal, the other
whether the headphone output will be
interrupted.
Configurable Outputs
Four monaural, balanced, line-level out-
puts can serve in a wide range of installa-
tion-specific applications. DIP switches,
located on the back panel, are used to
select from the five available signal
sources: main output left, main output
right, AUX output left, AUX output right,
and mic/line input channel direct. The DIP
switches can be set to provide additional
stereo outputs, create monaural outputs
from the main or AUX outputs, or to pro-
vide direct outputs from the mic/line input
channels.
Monitor Section
Reminiscent of much larger audio con-
soles, the Model 750’s monitor section
gives the operator an extensive set of
resources. Separate stereo outputs and
level controls are provided for connection
to a monitor amplifier and headphones. In
addition to monitoring the main and AUX
audio buses, provision has been made for
monitoring two external audio sources.
These stereo inputs are intended to be
connected to off-air, microwave, or satel-
lite receivers. External Monitor Input 1 is
compatible with “+4” signals, while Exter-
nal Monitor Input 2 can be set, using a
front-panel DIP switch, for “–10” or “+4”
compatibility.
Multiple sources can be simultaneously
selected for monitoring. This can prove
useful by allowing, for example, an opera-
tor to simultaneously monitor a local mix
and an externally-provided mix-minus
signal. A mono function allows the moni-
tored audio source to be checked for
phase cancellation problems and accept-
able “sum-to-monaural” performance.
The AUX interrupt mode allows monitoring
of selected input channels and the setup
section without interfering with normal
operation of the main audio bus. For
operator assistance, the meters can be
configured to monitor the AUX bus when-
ever the AUX interrupt mode is active.
Mechanical VU-type meters, along with
peak level LED indicators, provide a “user-
friendly” indication of audio-signal levels.
Fanatics for addressing the details, Studio
Technologies has even eliminated the
issue of burned-out meter-scale illumina-
tion by implementing a solid-state, LED-
based lighting scheme.
Setup Section
Unique to the Model 750 are the features
provided by the setup section, the high-
light being the ability of the operator to
record and playback three voice identifica-
tion segments. The Left+Right segment
allows a voice message of up to 12 sec-
onds in length to be recorded, with play-
back going to the left and right output
channels. The Left Only and Right Only
segments allow recording of up to 4 sec-
onds each, with playback going only to
their respective channels.
The voice segments can prove useful,
allowing the facilities that receive the
vehicle’s signal (generally provided by
microwave or satellite links) to quickly
“learn” more about the origin of the trans-
mission. Information such as vehicle
identity, physical location, the names of
technical and on-air personnel, mobile