Equipment information

Orban OPTIMOD-TV 8180A Effect Processor
Manufacturer:
Model:
OPTIMOD-TV 8180A
Date:
1982
Category:
Group:
Description:

Information

Function of OPTIMOD-TV: OPTIMOD-TV is an integrated signal-processing system which replaces conventional compressors, limiters, and clippers. It is an adaptation of the OPTIMOD-FM Model 8I00A to TV audio, and offers the TV broadcaster the same superb audio quality that has made the 8I00A so popular among FM radio broadcasters. Briefly, the OPTIMOD-TV system performs the following functions: 1. It rides gain over a range of as much as 25dB, compressing dynamic range and compensating for gain riding errors on the part of operators. The amount of dynamic range reduction ordinarily produced is adjustable. When OPTIMOD-TV is operated at its optimum release time setting, gain riding and compression are virtually undetectable because of advanced program-controlled time constants, level-dependent gating, and multiband compression. 2. It controls potential interference to video and/or future stereo services by means of bandwidth-limiting 15kHz lowpass filters incorporating full overshoot compensation. OPTIMOD-TV thus provides extremely tight control over peak modulation, preventing overmodulation and controlling its output spectrum simultaneously. 3. The OPTIMOD-TV compressor is a dual-band design which can be operated with the bands independent of each other ("independent"), or such that the bands are coupled and ordinarily track each other ("wideband"). When operated in "independent" mode, OPTIMOD-TV can make audio quality more consistent by correcting frequency balances between Bass and midrange material. When operated in "wideband" mode, ‘ OPTIMOD-TV will preserve frequency balances and will produce an output which sounds like its input. k. OPTIMOD-TV prevents peak overload and overmodulation due to the effects of the preemphasis curve.

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Service and User Manual
Manual Type:
Service and User Manual
Pages:
124
Size:
5.48 Mbytes (5748613 Bytes)
Language:
english
Revision:
Manual-ID:
95026-000-02
Date:
1982 02 01
Quality:
Scanned document, all readable.
Upload date:
2017 10 30
MD5:
ded67a43f8c1c579c057a5db874dca0f
Downloads:
513

Information

Despite its weight, this Manual is intended to be concise and easy to use. It is organized into two major sections. The first contains information on how to plan your installation, how OPTIMOD-TV interfaces with other station equipment, how to set up and adjust OPTIMOD-TV, how to do a Proof of Performance, and brief comments on routine maintenance. You should read Parts I, 2, and 3 before attempting to install OPTIMOD-TV. The second section contains Appendices which provide useful information that you may need at some time during the life of OPTIMOD-TV. This is primarily reference material, and you do not need to digest it to install, set up, or operate your unit. There is no Index, so the TABLE OF CONTENTS should be used to help you find the information you want. The TABLE OF CONTENTS provides an overview of the organization of the manual, and lists in some detail the topics discussed.

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