Orban OPTIMOD-AM 9000A/1 Effect Processor
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Модель:
OPTIMOD-AM 9000A/1
Дата:
1981
Категория:
Группа:
Описание:
Информация
OPTIMOD-AM is a powerful system for obtaining the best
possible quality from the AM broadcast medium. This medium
includes the Transmitter plus the listener's Receiver,
listening environment, and ear. OPTIMOD-AM is therefore
configured to enable the station to pre-correct for certain
unsatisfactory Receiver characteristics, and to compensate
for typical AM listening environments, like autos. Some
Receiver problems include extreme high frequency rolloff and
moderate to severe Bass rolloff; listening environments
often contain high ambient noise which require considerable
compression of program dynamic range to produce comfortably
listenable sound. OPTIMOD-AM's built-in Equalizer is capable
of performing equalization which will accurately correct for
the high frequency rolloff in an AM Receiver which
Orban/Broadcast's extensive research into the
characteristics of AM receivers has defined as "typical".
And OPTIMOD-AM's compressor and limiter circuits are capable
of high degrees of dynamic range reduction with an
unprecedented lack of side effects.
A Receiver that is "typical" right now may well be
"atypical" in future years. In addition, the use of extreme
high frequency equalization makes tuning of the Receiver
more critical than such tuning with little or no
equalization. For this reason, the equalization and other
system parameters have been made completely adjustable; the
system can be operated with extreme equalization, flat, or
anywhere in between.
The completely-adjustable dynamic signal processing
(including the Six-Band Limiter section and the "Smart
Clipper" peak limiter) is uniquely suited to the task of
conditioning a highly preemphasized signal so that it can be
broadcast without objectionable distortion, loss of
loudness, interference to other stations, or audible
"action". Such "action" is often the indirect result of the
large amount of high frequency energy which is rolled off at
the Receiver, but which may cause poorly designed audio
processors to punch holes in the audio, to cause severe
intermodulation distortion (such as splattered "esses"),
and/or to produce other audibly unpleasant effects.
Hасто́льная кни́га тип:
Обслуживание и Руководство пользователя
Страницы:
190
Размер:
3.24 Mbytes (3401389 Bytes)
Язык:
english
Пересмотр:
Hасто́льная кни́га ID:
95023-000-02
Дата:
1981 05 01
Качество:
Сканированный документ, читая частично плохо, частично не читается.
Дата загрузки:
2017 10 31
MD5:
e4a17327acf04d14a17b094758b691a5
Загрузки:
632
Информация
INSTALLATION
SETUP AND ADJUSTMENTS
MAINTENANCE
PRINCIPLES OF OPERATION
CIRCUIT DESCRIPTION
Appendix I: ALIGNMENT PROCEDURE
Appendix II: REFERENCE FILTER RESPONSES
Appendix III: SCHEMATIC DIAGRAMS, ASSEMBLY DRAWINGS AND
PARTS LISTS