Orban OPTIMOD-Studio 8200ST Controller
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Model:
OPTIMOD-Studio 8200ST
Date:
unknown
Class:
Type:
SubType:
Automatic Gain Controller
Information
Orban OPTIMOD-STUDIO CHASSIS 8200ST
The 8200ST provides transparent gain riding, adjustable
compression, high-frequency limiting and absolute peak
control — all in a space-saving, rugged, 1 -rack unit high
package. The flexibility and natural sound of the 8200ST is
ideally suited to many broadcast applications; in
particular, protecting discrete studio-to-transmitter links
when using OPTIMOD audio processing.
Barely adequate signal-to-noise ratio often makes the land
line or microwave studio-to-transmitter link the weakest
part of the broadcast chain. The 8200ST’s transparent gain
control translates to improved effective dynamic range for
the link and improved signal quality at the
Receiver.
Switch-selectable pre-emphasis limiting and peak control
ensure proper matching the 8200ST to any standard
transmission medium.
Features include:
• Up to 25dB of gain reduction for two channels of audio.
• Defeatable “Silence Gate” — not a conventional noise gate,
but a circuit that freezes the level controller’s gain when
signals drop below threshold. This gate prevents rush-up of
background noise during quieter passages and exaggeration of
breathing during pauses in spoken voice.
• Flexible level controls: A smooth leveler, activated when
the agc button is on, provides slow gain riding. A second,
much faster level
Controller (one that works in conjunction
with the smooth leveler) can be activated with the voice button.
• Five switchable HF Limiter pre-emphasis curves (25|i.s to
150|_ls): These pre-emphasis curves allow the HF limiting to
complement the medium being protected.
• Built-in 400Hz line-up tone generators for easy system
alignment.
• Two LED bargraphs per channel simultaneously displaying
gain reduction and peak operating levels.
• Independent or stereo operation, controlled via front
panel couple button.
• Class-A VCAs with inherently low noise and distortion.
• Broadcast-quality interfacing with EMI-suppressed,
balanced and floating inputs and outputs.
• Defeatable clipper: follows the HF limiter for absolute
peak protection.
Manual type:
Service and User Manual
Pages:
85
Size:
6.66 Mbytes (6985915 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
unknown
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 10 31
MD5:
ca8e2f3987ff882ac59c533884a139c9
Downloads:
1169
Information
1-1 Section 1: Introduction
Orban OPTIMOD-STUDIO CHASSIS 8200ST
2-1 Section 2: Installation
Installation
3-1 Section 3: Operation
8200ST Controls and Meters
Example Control Settings
More About 8200ST Audio Processing
4-1 Section 4: Maintenance
Getting Inside the Chassis Performance Evaluation
5-1 Section 5: Troubleshooting
Problems and Possible Causes Technical Support Factory
Service Shipping Instructions
6-1 Section 6: Technical Data
Specifications Circuit Description Parts List
Schematics, Assembly Drawings Abbreviations
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