Table Of Contents; Introduction - Lectrosonics D4 Series Instruction Manual

Table of Contents

Introduction ............................................................................3
General Technical Description .............................................4
Front and Rear Panels ...........................................................6
Navigating the LCD ...............................................................7
Antenna Placement and Orientation ....................................7
TransmitterGeneral Settings ................................................8
TransmitterAudio Trim Setup ................................................9
ReceiverGeneral Settings ...................................................10
ReceiverAudio Level Setup ................................................11
Transmitter AES3 Modes ....................................................12
Receiver AES3 Modes .........................................................12
Mixed Modes ........................................................................12
Connector Pinouts ..............................................................12
Frequency Selection ...........................................................13
Finding Clear Frequencies .................................................13
Parts and Accessories ........................................................14
Firmware Updates ...............................................................16
Specifications ......................................................................17
Service and Repair ..............................................................18
Returning Units for Repair .................................................18

Introduction

The D4 digital wireless system was designed as a
special purpose system for location production in film
and television.
A typical application for this system is in television
production as part of what is commonly called a "bag
system." A portable mixer and several wireless mi-
crophone receivers are carried in an over-shoulder
carrying case. The D4T transmitter is connected to the
outputs of the mixer to transmit up to four audio chan-
nels to one or more D4R receivers mounted on video
cameras.
The system is designed for line level analog audio
signals and AES/EBU digital audio signals with options
that provide:
• Digital in/Digital out
• Digital in/Analog out
• Analog in/Digital out
• Analog in/Analog out
907.776
4-CH
2-CH 906.624
Center frequencies of operation
Rio Rancho, NM, USA
902 to 928 MHz Band
912.384
908.928 911.232
The system can be configured to provide either 2 or
4 audio channels. In the 4-channel mode, four differ-
ent bands may be selected as shown below. Each
frequency carries four audio channels, digitally multi-
plexed on a common carrier. In the 2-channel mode,
eight different frequencies are available as shown
below, each with two audio channels.
Multiple D4 systems can be operated in the same
location to provide up to 16 audio channels.
The audio quality is suitable for any professional ap-
plication in film, television and live sound. 48kHz/24-bit
audio, ruler-flat 20Hz to 20kHz frequency response,
ultra-low distortion and high dynamic range assure
excellent audio quality.
Housings and panels are machined aluminum with
electrostatic powder coated and anodized finishes and
laser etched marking for durability.
916.992
913.536 915.840
4-channel Digital Wireless System
923.904
918.144
922.752 925.056
3