Operating instructions

OPTIMOD-AM DIGITAL INTRODUCTION

1-5

 Two sets of analog stereo outputs and two AES3 outputs accommodate as

many as four transmitters. Outputs can be switched independently to emit the

analog-channel signal, the digital-channel signal, or a low-delay monitor

signal suitable for talent headphones.

 Both the digital input and the two digital outputs are equipped with sample-

rate converters and can operate at 32 kHz, 44.1 kHz, 48, 88.2, and 96 kHz sam-

ple rates. The output levels are separately adjustable for the analog and digi-

tal outputs.

 OPTIMOD-AM is usually installed at the transmitter, replacing all processing

normally employed at the transmitter site, including compressor, protection peak

limiters, clippers, and high- and low-pass filters normally included within the

transmitter. It can also be installed at the studio if an uncompressed digital

STL is available.

 OPTIMOD-AM comes with a passive Monitor Rolloff Filter to accurately simu-

late the frequency response of an average receiver, for use in studio monitoring.

 All input, output, and power connections are rigorously RFI-suppressed to

Orban’s traditional exacting standards, ensuring trouble-free installation.

 The 9400 is designed and certified to meet all applicable international

safety and emissions standards.

Presets in OPTIMOD-AM

There are two distinct kinds of presets in OPTIMOD-AM: factory presets and user

presets.

Factory Presets

The Factory Presets are our “factory recommended settings” for various program

formats or types. The description indicates the processing structure and the type of

processing. Internally, each Factory Preset that appears on the Preset list is a library

of more than 20 separate sub-presets, one of which is the default when you recall

the Factory Preset via the R

ECALL button or from PC Remote. To access the remain-

ing sub-presets in a given Factory Preset, navigate to M

ODIFY PROCESSING > LESS-

ORE and use the AM or HD LESS-MORE control to adjust OPTIMOD-AM for less or

more AM or HD processing. The Factory Presets are listed and described starting on

page 3-18.

Factory Presets are stored in OPTIMOD-AM’

s non-volatile memory and cannot be

erased. You can change the settings of a Factory Preset, but you must then store

those settings as a User Preset, which you are free to name as you wish. The Factory

Preset remains unchanged.