Orban Optimod-AM 9400 User Manual

Table of Contents
Index.........................................................................................................................0-9
Section 1 Introduction
.........................................................................................................................................1-1
ABOUT THIS MANUAL.......................................................................................................1-1
THE OPTIMOD-AM 9400 DIGITAL AUDIO PROCESSOR ......................................................1-1
Making the Most of the AM Channel....................................................................1-2
Controllable and Adjustable...................................................................................1-3
Versatile Installation................................................................................................1-4
PRESETS IN OPTIMOD-AM..............................................................................................1-5
Factory Presets .........................................................................................................1-5
User Presets..............................................................................................................1-6
INPUT/OUTPUT CONFIGURATION ........................................................................................1-7
Digital AES3 Left/Right Input/Outputs...................................................................1-7
Analog Left/Right Input/Outputs ...........................................................................1-7
Remote Control Interface .......................................................................................1-8
Computer Interface .................................................................................................1-8
RS-232 Serial Port ............................................................................................................. 1-8
RJ45 Ethernet Connector ................................................................................................. 1-8
LOCATION OF OPTIMOD-AM..........................................................................................1-8
Optimal Control of Peak Modulation Levels.........................................................1-8
Best Location for OPTIMOD-AM ..........................................................................1-10
If the transmitter is not accessible:................................................................................ 1-10
If the transmitter is accessible: ...................................................................................... 1-10
STUDIO-TRANSMITTER LINK.............................................................................................1-11
Transmission from Studio to Transmitter.............................................................1-11
Digital Links .................................................................................................................... 1-11
Dual Microwave STLs...................................................................................................... 1-12
Analog Landline (PTT / Post Office Line)....................................................................... 1-13
AM Transmitters and Antennas............................................................................1-13
Bypassing the Transmitter's Internal Filters and Clippers...................................1-14
Power Supplies ......................................................................................................1-15
Pre-1965 Transmitters............................................................................................1-16
Asymmetry .............................................................................................................1-16
Transmission Presets and Transmitter Equalization ............................................1-17
Antenna System.....................................................................................................1-19
USING LOSSY DATA REDUCTION IN THE STUDIO..................................................................1-19
ABOUT TRANSMISSION LEVELS AND METERING ..................................................................1-20
Meters ....................................................................................................................1-20
Figure 1-1: Absolute Peak Level, VU and PPM Reading ............................................... 1-21
Studio Line-up Levels and Headroom ..................................................................1-21
Transmission Levels................................................................................................1-21
LINE-UP FACILITIES .........................................................................................................1-22
Metering of Levels.................................................................................................1-22
Built-in Calibrated Line-up Tones.................................................................................. 1-22
Built-in Calibrated Bypass Test Mode............................................................................ 1-22
MONITORING.................................................................................................................1-23
Modulation Monitors and Their RF Amplifiers ...................................................1-23
Monitoring on Loudspeakers and Headphones..................................................1-23
Monitor Rolloff Filter..................................................................................................... 1-23

Orban Optimod-AM 9400 Specifications

General

Brand	Orban
Model	Optimod-AM 9400
Category	Processor
Language	English