Lectrosonics SMDWB Quick Start Guide

Quick
Start
Guide

Wireless Microphone Transmitters
and Recorders

SMWB, SMDWB, SMWB/E01, SMDWB/E01, SMWB/X, SMDWB/X

Fill in for your records:

Serial Number:

Purchase Date:

Digital Hybrid Wireless® US Patent 7,225,135

This guide is intended to assist with
initial setup and operation of your
Lectrosonics product.

For a detailed user manual, down­load the most current
version at:

www.lectrosonics.com

13 March 2020

SMWB Series

The SMWB transmitter delivers the advanced technology and features of Digital
Hybrid Wireless
radio link to eliminate a compandor and its artifacts, yet preserves the extended
operating range and noise rejection of the finest analog wireless systems. DSP
“compatibility modes” allow the transmitter to also be used with a variety of
analog receivers by emulating the compandors found in earlier Lectrosonics
analog wireless and IFB receivers, and certain receivers from other manufactur­ers (contact the factory for details).

Plus, the SMWB 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. The recorder samples at 44.1kHz rate with a 24 bit
sample depth. (the rate was selected due to the required 44.1kHz rate used for
the digital hybrid algorithm). The micro SDHC card also offers easy firmware
updates capability without the need for a USB cable.

®

and combines 24-bit digital audio chain with an analog FM

Controls and Functions

Modulation

Indicators

Indicates micro

SDHC card present

and recording

status (stopped/not

recording)

microSDHC memory

Antenna

Port

card port

Audio

Input

Jack

REC

-40

-20

0

Antenna

Port

Battery

Status LED

microSDHC

memory card

port

Audio

Input

Jack

LECTROSONICS, INC.2

Battery Installation

The transmitters are powered by AA battery(ies). We recommend using
lithium for longest life.

Because some batteries run down quite abruptly, using the Power LED to
verify battery status will not be reliable. However, it is possible to track battery
status using the battery timer function available in Lectrosonics Digital Hybrid
Wireless receivers.

The battery door opens by simply unscrewing the knurled knob part way
until the door will rotate. The door is also easily removed by unscrewing the
knob completely, which is helpful when cleaning the battery contacts. The
battery contacts can be cleaned with alcohol and a cotton swab, or a clean
pencil eraser. Be sure not to leave any remnants of the cotton swab or eraser
crumbs inside the compartment.

A small pinpoint dab of silver conductive grease* on the thumbscrew threads
can improve battery performance and operation. Do this if you experience a
drop in battery life or an increase in operating temperature.

Insert the batteries according to the markings on the back of the housing. If
the batteries are inserted incorrectly, the door may close but the unit will not
operate.

*if you are unable to locate a supplier of this type of grease - a local electron­ics shop for example - contact the factory for a small maintenance vial.

Turning Power ON

Short Button Press

When the unit is turned off, a short press of the power button will turn the
unit on in the Standby Mode with the RF output turned off.

RF indicator blinks

b 19

A

E

494.500

-40

-20

0

To enable the RF output from the Standby Mode, press the Power Button,
select Rf On? option, then select yes.

Resume

Rf On?

Pwr Off

Rf On?

AutoOn?

www.lectrosonics.com 3

No
Ye s

Long Button Press

When the unit is turned off, a long press of the power button will start a count­down to turn the unit on with the RF output turned on. Continue to hold the
button until the countdown is complete.

RF indicator not blinking

Hold
for
Rf On

Hold power
button until
the counter

reaches 3

b 19

A

E

503.800

...3

-40

-20

0

If the button is released before the countdown is completed, the unit will
power up with the RF output turned off.

Power Button Menu

When the unit is already turned on, the Power Button is used to turn the unit
off, or to access a setup menu.

A long press of the button begins a countdown to turn the unit off.

A short press of the button opens a menu for the following setup options. Se­lect the option with the UP and DOWN arrow buttons then press MENU/SEL.

• Resume returns the unit to the previous screen and operating mode

• Pwr Off turns the unit off

• Rf On? turns the RF output on or off

• AutoOn? selects whether or not the unit will turn on automatically after a
battery change

• Remote enables or disables the audio remote control (dweedle tones)

• Bat Type selects the type of battery in use

• Backlit sets the duration of the LCD backlight

• Clock sets the Year/Month/Day/Time

• Locked disables the control panel buttons

• LED Off enables/disables control panel LEDs

• About displays the model number and firmware revision

Menu Shortcuts

From the Main/Home Screen, the following shortcuts are available:

• Record: Press the MENU/SEL + UP arrow simultaneously

• Stop Recording: Press the MENU/SEL + DOWN arrow simultaneously

NOTE: The shortcuts are only available from the main/home screen
AND when a microSDHC memory card is installed.

LECTROSONICS, INC.4

Transmitter Operating Instructions

• Install battery(s)

• Turn power on in the Standby mode (see previous section)

• Connect microphone and place it in the position where it will be used.

• Have the user talk or sing at the same level that will be used in the
production, and adjust the input gain so that the -20 LED blinks red on
louder peaks.

Gain

Gain

Freq
Rolloff
Compat

Signal Level -20 LED -10 LED

Less than -20 dB

-20 dB to -10 dB

-10 dB to +0 dB

+0 dB to +10 dB

Greater than +10 dB

• Set the frequency and compatibility mode to match the receiver.

• Turn the RF output on with the Rf On? item in the power menu, or by
turning the power off and then back on while holding the power button in
and waiting for the counter to reach 3.

-40

-20

Off Off

Green Off

Green Green

Red Green

Red Red

Use the UP and DOWN

arrow buttons to adjust

25

the gain until the -20

LED blinks red on

louder peaks

0

www.lectrosonics.com 5

Record Operating Instructions

• Install battery(s)

• Insert microSDHC memory card

• Turn power on

• Format memory card

• Connect microphone and place it in the position where it will be used.

• Have the user talk or sing at the same level that will be used in the
production, and adjust the input gain so that the -20 LED blinks red on

louder peaks

Gain

Gain

Freq.
Rolloff
Compat

Signal Level -20 LED -10 LED

Less than -20 dB

-20 dB to -10 dB

-10 dB to +0 dB

+0 dB to +10 dB

Greater than +10 dB

• Press MENU/SEL and choose Record from the menu

-40

-20

Off Off

Green Off

Green Green

Red Green

Red Red

Files
For mat

Record

RECORD-

ING

Gain

• To stop recording, press MENU/SEL and choose Stop; the word SAVED
appears on the screen

Files
For mat

SAVED

Stop

Gain

Use the UP and DOWN

arrow buttons to adjust

25

the gain until the -20

LED blinks red on

louder peaks

0

b 19

A

E

503.800

-40

b 19

A

E

503.800

-40

REC

-20

-20

0

0

To play back the recordings, remove the memory card and copy the files onto
a computer with video or audio editing software installed.

LECTROSONICS, INC.6