Lectrosonics DBSM Manual de Usario

Lectrosonics micrófono DBSM

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DBSM/DBSMD

Digital Transcorder

DBSM-A1B1, DBSM/E01-A1B1, DBSMD-A1B1, DBSMD/E01-A1B1

INSTRUCTION MANUAL

Rio Rancho, NM, USA

www.lectrosonics.com

Fill in for your records:

Serial Number:

Purchase Date:

DBSM DBSMD

DBSM-A1B1, DBSM/E01-A1B1, DBSMD-A1B1, DBSMD/E01-A1B1

LECTROSONICS, INC.

Introduction

The DBSM/DBSMD transmitter employs high efﬁciency

digital circuitry for extended operating time on two AA

batteries. The transmitter can tune in steps across the

UHF television band from 470.100 to 607.950 MHz

(DBSM/DBSMD/E01 frequency range is 470.100 to

614.375 MHz), with a selectable output power of 10,

25 or 50 mW. A high-density transmission mode at 2

mW allows close carrier spacing for maximum channels

within a given amount of spectrum.

The pure digital architecture enables AES 256CTR

encryption for high level security applications. Studio

quality audio performance is assured by high quality

components in the preamp, wide range input gain ad-

justment and DSP-controlled limiting. Input connections

and settings are included for any lavaliere microphone,

dynamic microphones and line level inputs. Input gain

is adjustable over a 44 dB range in 1 dB steps to allow

an exact match to the input signal level, to maximize the

dynamic range and signal to noise ratio.

The housing is a rugged, machined aluminum pack-

age with a standard Lectrosonics 5-pin input jack for

use with electret lavaliere mics, dynamic mics, musical

instrument pickups and line level signals. The LEDs

on the keypad allow quick and accurate level settings

without having to view the receiver. The unit is powered

by AA batteries, and the antenna port uses a standard

50 ohm SMA connector.

Switching power supplies provide constant voltages to

the transmitter circuits from the beginning to the end of

battery life, with output power remaining constant over

the life of the battery.

Table of Contents

Introduction 2 ............................................................................

Servo Bias Input and Wiring 3 ................................................

DSP-controlled Input Limiter 3 ................................................

Recorder function 3 .................................................................

Encryption 3 ............................................................................

Compatibility withmicroSDHC memory cards 3 ....................

Features 4 ..................................................................................

Main Window Indicator ......................................................... 4

Battery Status LED Indicator 4 ...............................................

Encryption StatusLED Indicator 4 ...........................................

Battery Installation 5 ................................................................

Connecting the Signal Source 5 .............................................

Formatting SD Card 5 ...............................................................

IMPORTANT 5 ..........................................................................

iXML HEADER SUPPORT 5 ..................................................

Turning Power ON 6 .................................................................

Short Button Press 6 ...............................................................

Long Button Press 6 ...............................................................

Menu Shortcuts 6 ....................................................................

Powering Off 6 ........................................................................

Recorder Operating Instructions 6 .........................................

Setting Gain 6 .........................................................................

Recording 6 .............................................................................

DBSM/DBSMD Menu Map 8 .....................................................

Menu Screen Details 9 ............................................................

Top Menu 9 .............................................................................

Input Menu 10 ...........................................................................

Adjusting the Input Gain 10 .......................................................

Selecting the Low Frequency Roll-off 10 ..................................

Selecting Audio Polarity 10 .......................................................

Selecting LineIn/Instrument 10 .................................................

Xmit Menu 11 ..............................................................................

Selecting Frequency 11 ...........................................................

Setting Transmit Output Power 11 .............................................

RfOn? 11 ...................................................................................

Compat (Compatibility) Menu 11 ...............................................

High Density Mode 11 ...............................................................

SD Card Menu 11 ........................................................................

Recording 12 .............................................................................

Files 12 .....................................................................................

Takes 12 ....................................................................................

Setting Scene and Take Number 12 .........................................

Format 12 ..................................................................................

Recorded File Naming 12 .........................................................

SD Info 12 .................................................................................

Load Group 12 ..........................................................................

Save Group 13 ..........................................................................

TCode (Timecode) Menu 13 .......................................................

TC Jam (jam timecode) 13 ........................................................

Setting Frame Rate 13 ..............................................................

Use Clock 13 .............................................................................

IR&Key Menu.......................................................................... 13

SendAll 13 .................................................................................

GetFreq 13 ................................................................................

GetAll 14 ...................................................................................

Key Type ............................................................................... 14

Wipe Key 14 ..............................................................................

SetUp Menu 13 ............................................................................

AutoOn 13 .................................................................................

Remote 13 ................................................................................

BattType 14 ...............................................................................

Clock 14 ....................................................................................

Locking/Unlocking Changes to Settings............................... 15

DispOff 15 .................................................................................

LED Off 15 ................................................................................

Default 15 ..................................................................................

About 15 ....................................................................................

5-Pin Input Jack Wiring 16 .........................................................

Microphone Cable Termination

for Non-Lectrosonics Microphones 17 ..............................

Input Jack Wiring for Different Sources 18 ..............................

Microphone RF Bypassing 19 ...................................................

Line Level Signals 19 ................................................................

Firmware Update 20 ...................................................................

Recovery Process 21 .................................................................

Silver Paste on SM Series Transmitter Thumbscrews 22 ........

Straight Whip Antennas ........................................................ 23

Belt Clips and Pouches 24 .........................................................

DBSM Single Battery Model 24 ................................................

DBSMD Dual Battery Model 24 ................................................

Miscellaneous Accessories 25 ..................................................

LectroRM and PDR Remote 26 ..................................................

Speciﬁcations 28 ........................................................................

Troubleshooting 29 .....................................................................

Service and Repair 30 ................................................................

Returning Units for Repair 30 ...................................................

ISDEC Notice 31 ..........................................................................

Warranty 32 .................................................................................

Digital Hybrid Wireless Belt-Pack Transmitters

Rio Rancho, NM 3

Servo Bias Input and Wiring

The input preamp is a unique design that delivers

audible improvements over conventional transmitter

inputs. Two different microphone wiring schemes are

available to simplify and standardize the conﬁguration.

Simpliﬁed 2-wire and 3-wire conﬁgurations provide sev-

eral arrangements designed for use only with servo bias

inputs to take full advantage of the preamp circuitry.

A line level input wiring provides an extended frequency

response with an LF roll-off at 20 Hz for use with instru-

ments and line level signal sources.

DSP-controlled Input Limiter

The transmitter employs a digitally-controlled analog

audio limiter prior to the analog-to-digital converter.

The limiter has a range greater than 30 dB for excellent

overload protection. A dual release envelope makes the

limiter acoustically transparent while maintaining low

distortion. It can be thought of as two limiters in series,

connected as a fast attack and release limiter followed

by a slow attack and release limiter. The limiter recovers

quickly from brief transients, so that its action is hidden

from the listener, but recovers slowly from sustained

high levels to keep audio distortion low and preserve

short term dynamic changes in the audio.

Recorder function

The DBSM/DBSMD has a built in recording function

for use in situations where RF may not be possible or

to work as a stand alone recorder. The record function

and transmit functions are exclusive of each other - you

cannot record AND transmit at the same time. When the

unit is transmitting and recording is turned on, the audio

in the RF transmission will stop, but the battery status

will still be sent to the receiver.

The recorder samples at 48 kHz rate with a 24 bit

sample depth. The micro SDHC card also offers easy

ﬁrmware update capabilities without the need for a USB

cable or driver issues.

Encryption

When transmitting audio, there are situations where

privacy is essential, such as during professional sport-

ing events, in court rooms or private meetings. For

instances where your audio transmission needs to be

kept secure, without sacriﬁcing audio quality, Lectroson-

ics implements AES256 encryption in our digital wire-

less microphone systems. High entropy encryption keys

are ﬁrst created by a Lectrosonics receiver such as the

DSQD Receiver. The key is then synced with the DBSM

via the IR port. The transmission will be encrypted

and can only be decoded if the receiver and transmit-

ter have matching encryption keys. If you are trying to

transmit an audio signal and keys do not match, all that

will be heard is silence.

Compatibility with

microSDHC memory cards

Please note that the DBSM/DBSMD are designed

for use with microSDHC memory cards. There are

several types of SD card standards (as of this writing)

based on capacity (storage in GB).

SDSC: standard capacity, up to and including 2 GB –

DO NOT USE!

SDHC: high capacity, more than 2 GB and up to and

including 32 GB – .USE THIS TYPE

SDXC: extended capacity, more than 32 GB and up to

and including 2 TB – DO NOT USE!

SDUC: extended capacity, more than 2TB and up to

and including 128 TB – DO NOT USE!

The larger XC and UC cards use a different formatting

method and bus structure and are NOT compatible with

the recorder. These are typically used with later genera-

tion video systems and cameras for image applications

(video and high resolution, high speed photography).

ONLY microSDHC memory cards should be used. They

are available in capacities from 4GB to 32GB. Look for

the Speed Class 10 cards (as indicated by a C wrapped

around the number 10), or the UHS Speed Class I

cards (as indicated by the numeral 1 inside a U sym-

bol). Also note the Logo.microSDHC

If you are switching to a new brand or source of card,

we always suggest testing ﬁrst before using the card on

a critical application.

The following markings will appear on compatible

memory cards. One or all of the markings will appear on

the card housing and the packaging.

Stand-alone

Speed Class 10

UHS Speed Class 1

UHS Speed Class I

Accompanying

microSDHC logo

microSDHC Logo is a trademark of SD-3C, LLC

Especificaciones del producto

Marca:	Lectrosonics
Categoría:	micrófono
Modelo:	DBSM

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