Lectrosonics SMDWB series User manual

Quick
Start
Guide
Fill in for your records:
Serial Number:
Purchase Date:
This guide is intended to assist with
initial setup and operation of your
Lectrosonics product.
For a detailed user manual, down-
load the most current
version at:
www.lectrosonics.com
SMWB Series Transmitters
05 April 2018
Digital Hybrid Wireless®US Patent 7,225,135
SMWB SMDWB

LECTROSONICS, INC.2
Controls and Functions
Modulation
Indicators Battery
Status LED
-40 -20 0
REC
Audio
Input
Jack
Antenna
Port
microSDHC memory
card port
Antenna
Port
Audio
Input
Jack
microSDHC
memory card
port
SMWB Series
The SMWB transmitter delivers the advanced technology and features of Digital
Hybrid Wireless®and combines 24-bit digital audio chain with an analog FM
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 manufactur-
ers (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
update capabilities without the need for a USB cable or driver issues.

www.lectrosonics.com 3
Battery Installation
The transmitter is powered by two
AA batteries. 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 un-
screwing the knob completely, which
is helpful when cleaning the battery
contacts. The battery contacts can
be cleaned with alcohol and a cot-
ton 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 thumb-
screw threads can improve battery
performance and operation. Do this
if you experience a drop in bat-
tery 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 sup-
plier of this type of grease - a local
electronics shop for example - con-
tact the factory for a small mainte-
nance vial.
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
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.
A
494.500
-40 -20 0
E
b 19
RF indicator blinks
To turn the RF output on from the Standby Mode, press the Power button/Rf
On? option.
Resume
Pwr Off
Rf On?
AutoOn?
Rf On?
No
Ye s
Long Button Press
When the unit is turned off, a long press of the power button will start a count-
down to turn the unit on with the RF output turned on. Continue to hold the
button until the countdown is complete.
Hold
for
Rf On
...3
A
503.800
-40 -20 0
E
b 19
RF indicator not blinking
Hold power
button until
the counter
reaches 3
If the button is released before the countdown is completed, the unit will
switch back to RF output turned off.

www.lectrosonics.com 5
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 turns the power off.
A short press of the button opens a menu for the following setup options. Se-
lect 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 unti 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
A long press of the button starts a countdown from 3 to 1 to turn the unit off.

LECTROSONICS, INC.6
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 user talk or sing at the same level that will be used in the produc-
tion, and adjust the input gain so that the -20 LED blinks red on louder
peaks.
Gain
Freq
Rolloff
Compat -40 -20 0
Gain
25
Use the UP and DOWN
arrow buttons to adjust
the gain until the -20
LED blinks red on
louder peaks
Signal Level -20 LED -10 LED
Less than -20 dB Off Off
-20 dB to -10 dB Green Off
-10 dB to +0 dB Green Green
+0 dB to +10 dB Red Green
Greater than +10 dB Red Red
• 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.
NOTE: The translucent “bubble” next to the antenna connector is
an IR port that can be used to transfer settings from an IR enabled
Lectrosonics receiver. Refer to the receiver manual for details.

www.lectrosonics.com 7
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 user talk or sing at the same level that will be used in the produc-
tion, and adjust the input gain so that the -20 LED blinks red on louder
peaks
Gain
Freq.
Rolloff
Compat -40 -20 0
Gain
25
Use the UP and DOWN
arrow buttons to adjust
the gain until the -20
LED blinks red on
louder peaks
Signal Level -20 LED -10 LED
Less than -20 dB Off Off
-20 dB to -10 dB Green Off
-10 dB to +0 dB Green Green
+0 dB to +10 dB Red Green
Greater than +10 dB Red Red
• Press MENU/SEL and choose Record from the menu
A
503.800
-40 -20 0
E
b 19
REC
Files
Format
Record
Gain
RECORD-
ING
• To stop recording, press MENU/SEL and choose Stop; the word SAVED
appears on the screen
SAVED
Files
Format
Stop
Gain
A
503.800
-40 -20 0
E
b 19
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.8
SMWB Main Menu
Freq.
Rolloff
Compat
StepSiz
Phase
TxPower
SEL
BACK
Freq
Press SEL to
select desired
adjustment
Use arrow keys
to select desired
frequency
SEL
BACK
SEL
BACK
Compat Select from
listing
Use arrow keys to select
compatibility mode
SEL
BACK
Use arrow keys to select
frequency step size
100 kHz
25 kHz
StepSiz
SEL
BACK
Use arrow keys to select
audio output polarity
Pos.
Neg.
Phase
SEL
BACK
Use arrow keys to select
RF power output
25mW
50 mW
100 mW
TxPower
Rolloff
70 Hz
Use arrow keys to
select input gain
Select from
listing
b 21
80
550.400
Hybrid
From the Main Window press MENU/SEL.
Use the UP/Down arrow keys to select the item.
Files
SEL
BACK
Files 0014A000
0013A000
Use arrow keys to
select file in list
Select from
listing
Format
SEL
BACK
Use arrow keys to initiate
formatting the memory card
No
Yes
Format?
(erases)
Gain
SEL
BACK
Gain 22
Use arrow keys to
select input gain
Select from
listing
Record
SEL
BACK
RECORD-
ING OR
Stop
SEL
BACK
SAVED
Default
SEL
BACK
Use arrow keys to return recorder
to default factory settings
No
Yes
Default
settings
Naming
SEL
BACK
Use arrow keys to select
file naming method
Seq #
Clock
Naming
SD Info
SEL
BACK
[SMWB ]
Max Rec
E.........................F
0/ 14G
Fuel gauge
Storage used
Storage capacity
Available recording time (H : M : S)

www.lectrosonics.com 9
SMWB Power Button Menu
Rf On?
BatType
Remote
Press SEL to return to
the previous screen
SEL
BACK
Use arrow keys to
turn RF signal on/off
No
Yes
Rf On?
SEL
BACK
Use arrow keys to
choose battery type
Alk.
Lith.
BatType
SEL
BACK
Use arrow keys to
enable/disable remote
Enable
Ignore
Remote
From the Main Window press the power button.
Use the UP/DOWN arrow keys to select the item.
Resume
Pwr Off
Press SEL to turn the
power off
AutoOn?
SEL
BACK
ProgSw Use arrow keys to enable
auto power restore
No
Yes
1.5 V
Backlit
SEL
BACK
Backlit Use arrow keys to select
LCD backlight duration
On
30 sec
5 min)
About
Locked
SEL
BACK
About
SMWB
v1.00
Displays firmware version
SEL
BACK
Use arrow keys to
lock/unlock keypad
Yes
No
Locked?
LED Off
SEL
BACK
LEDs Use arrow keys to turn
LEDs on or off
On
Off
Clock
SEL
BACK
Clock
2017
07 / 26
17 : 19
Year
Month / Day
Hour : Minute

LECTROSONICS, INC.10
Setup Screen Details
Locking/Unlocking Changes to Settings
Changes to the settings can be locked in the Power Button Menu.
Locked?
No
Ye s
LOCKED
(menu to
unlock)
Clock
Locked
LED Off
About
When changes are locked, several controls and actions can still be used:
• Settings can still be unlocked
• Menus can still be browsed
• When locked, POWER CAN ONLY BE TURNED OFF by removing the
batteries.
Main Window Indicators
The Main Window displays the band number, Standby or Operating mode,
operating frequency, audio level, battery status and programmable switch
function. When the frequency step size is set at 100 kHz, the LCD will look
like the following.
474.500
-40 -20 0
b 470
2C
Block number
Frequency (MHz)
Frequency
(hex number)
Operating mode
Battery status
Audio level
When the frequency step size is set to 25 kHz, the hex number will appear
smaller and may include a fraction.
474.525
-40 -20 0
b 470
1
4
2C Note that the
frequency has
increased by 25
kHz from the upper
example.
Fraction
1/4 = .025 MHz
1/2 = .050 MHz
3/4 = .075 MHz

www.lectrosonics.com 11
Changing the step size never changes the frequency. It only changes the way
the user interface works. If the frequency is set to a fractional increment be-
tween even 100 kHz steps and the step size is changed to 100 kHz, the hex
code will be replaced by two asterisks on the main screen and the frequency
screen.
494.525
-40 -20 0
b 19 Freq.
b 19
494.525
Frequency set to fractional 25 kHz step,
but step size changed to 100 kHz.
Connecting the Signal Source
Microphones, line level audio sources and instruments can be used with
the transmitter. Refer to the section entitled Input Jack Wiring for Different
Sources for details on the correct wiring for line level sources and micro-
phones to take full advantage of the Servo Bias circuitry.
Using Line Level and Instrument Inputs
Line level signals can be sent to the input with the proper wiring. Refer to the
section on Input Jack Wiring for Different Sources for details.
Turning Control Panel LEDs ON/OFF
From the main menu screen, a quick press of the UP arrow button turns the
control panel LEDs on. A quick press of the DOWN arrow button turns them
off. The buttons will be disabled if the LOCKED option is selected in the Power
Button menu.
The control panel LEDs can also be turned on and off with the LED Off option
in the Power Button menu.
Helpful Features on Receivers
To aid in finding clear frequencies, several Lectrosonics receivers offer a
SmartTune feature that scans the tuning range of the receiver and displays a
graphical report that shows where RF signals are present at different levels,
and areas where there is little or no RF energy present. The software then
automatically selects the best channel for operation.
Lectrosonics receivers equipped with an IR Sync function allow the receiver
to set frequency, step size and compatibility modes on the transmitter via an
infrared link between the two units.

LECTROSONICS, INC.12
Files
Files
0007A000
0002A000
0003A000
0004A000
0005A000
0006A000
Files
Format
Record
Gain
Select recorded
files on
microSDHC
memory card.
Format
Files
Format
Record
Gain
Formats the microSDHC memory card.
WARNING: This function erases any content on the
microSDHC memory card.
Record or Stop
Begins recording or stops recording. (See page 7.)

www.lectrosonics.com 13
Adjusting the Input Gain
The two bicolor Modulation LEDs on the control panel provide a visual indica-
tion of the audio signal level entering the transmitter. The LEDs will glow either
red or green to indicate modulation levels as shown in the following table.
Signal Level -20 LED -10 LED
Less than -20 dB Off Off
-20 dB to -10 dB Green Off
-10 dB to +0 dB Green Green
+0 dB to +10 dB Red Green
Greater than +10 dB Red Red
NOTE: Full modulation is achieved at 0 dB, when the “-20” LED first
turns red. The limiter can cleanly handle peaks up to 30 dB above this
point.
It is best to go through the following procedure with the transmitter in the
standby mode so that no audio will enter the sound system or recorder during
adjustment.
1) With fresh batteries in the transmitter, power the unit on in the standby
mode (see previous section Turning Power ON and OFF).
2) Navigate to the Gain setup screen.
Gain
Freq
Rolloff
Compat -40 -20 0
Gain
25
3) Prepare the signal source. Position a microphone the way it will be used
in actual operation and have the user speak or sing at the loudest level
that will occur during use, or set the output level of the instrument or
audio device to the maximum level that will be used.
4) Use the and arrow buttons to adjust the gain until the –10 dB glows
green and the –20 dB LED starts to flicker red during the loudest peaks
in the audio.
5) Once the audio gain has been set, the signal can be sent through the
sound system for overall level adjustments, monitor settings, etc.
6) If the audio output level of the receiver is too high or low, use only the
controls on the receiver to make adjustments. Always leave the trans-
mitter gain adjustment set according to these instructions, and do not
change it to adjust the audio output level of the receiver.

LECTROSONICS, INC.14
Selecting Frequency
The setup screen for frequency selection offers several ways to browse the
available frequencies.
Freq.
b 19
494.500
51
Gain
Freq
Rolloff
Compat
Press MENU/
SEL to select
one of four
fields to make
adjustments
Each field will step through the available frequencies in a different increment.
The increments are also different in the 25 kHz mode from the 100 kHz mode.
Freq.
b 19
494.500
51
Freq.
b 19
494.500
51
These two fields step in 25 kHz
increments when the step size is 25
kHz and 100 kHz increments when
the step size is 100 kHz.
Freq.
b 19
494.500
51
Freq.
b 19
494.500
51
These two fields
always step in the
same increments
1 MHz steps
1 block steps
A fraction will appear next to the hex code in the setup screen and in the main
window when the frequency ends in .025, .050 or .075 MHz.
474.525
-40 -20 0
b 470
1
4
51
Freq.
b 19
494.525
511
4
Fraction appears
next to hex code
in 25 kHz mode

www.lectrosonics.com 15
Selecting Frequency Using Two Buttons
Hold the MENU/SEL button in, then use the and arrow buttons for alter-
nate increments.
NOTE: You must be in the FREQ menu to access this feature. It is not
available from the main/home screen.
Freq.
b 19
494.500
51
1 block steps
1.6 MHz steps to
nearest 100 kHz
channel
10 MHz steps 100 kHz steps
to next 100 kHz
channel
100 kHz Mode
Freq.
b 19
494.525
511
4
1 block steps
1.6 MHz steps
10 MHz steps
25 kHz steps
25 kHz Mode
If the Step Size is 25 kHz with the frequency set between even 100 kHz steps
and the Step Size is then changed to 100 kHz, the mismatch will cause the
hex code to display as two asterisks.
494.525
-40 -20 0
b 19
Freq.
b 19
494.500
**
Step Size and
Frequency
mismatch

LECTROSONICS, INC.16
About Overlapping Frequency Bands
When two frequency bands overlap, it is possible to select the same frequen-
cy at the upper end of one and the lower end of the other. While the frequency
will be the same, the pilot tones will be different, as indicated by the hex
codes that appear.
In the following examples, the frequency is set to 494.500 MHz, but one is
in band 470 and the other in band 19. This is done intentionally to maintain
compatibility with receivers that tune across a single band. The band number
and hex code must match the receiver to enable the correct pilot tone.
Freq.
b470
494.500
F4
Freq.
b 19
494.500
51
Make sure the
band number and
hex code match
the receiver setting
Selecting the Low Frequency Roll-off
Low frequency audio content may be desirable or distracting, so the point at
which the roll-off takes place can be set to 35, 50, 70, 100, 120 and 150 Hz.
Rolloff
Compat
StepSiz
Phase
Rolloff
70 Hz

www.lectrosonics.com 17
Selecting the Compatibility (Compat) Mode
When used with a Lectrosonics Digital Hybrid Wireless®receiver, the best
audio quality will be achieved with the system set to the Hybrid compatibility
mode.
Rolloff
Compat
StepSiz
Phase
Compat
NA Hybr
Use the UP and DOWN arrows to select the desired mode, then press the
BACK button twice to return to the Main Window.
Compatibility modes are as follows:
Receiver Models LCD menu item
• Digital Hybrid Wireless®: NA Hybr
• Mode 3:* Mode 3
• 200 Series: 200 Mode
• 100 Series: 100 Mode
• Mode 7:* Mode 7
• Mode 6:* Mode 6
• IFB Series: IFB Mode
*Modes 3, 6 and 7 work with certain non-Lectrosonics models. Contact the
factory for details.
Selecting Step Size
This menu item allows frequencies to be selected in either 100 kHz or 25 kHz
increments.
Rolloff
Compat
StepSiz
Phase
StepSiz
100 kHz
25 kHz
StepSiz
100 kHz
25 kHz
If the desired frequency ends in .025, .050 or .075 MHz, the 25 kHz step size
must be selected.
Normally, the receiver is used to find a clear operating frequency. All Lectro-
sonics Digital Hybrid Wireless®receivers provide a scanning function to quick-
ly and easily find prospective frequencies with little or no RF interference. In
other cases, a frequency may be specified by officials at a large event such as
the Olympics or a major league ball game. Once the frequency is determined,
set the transmitter to match the associated receiver.

LECTROSONICS, INC.18
Selecting Audio Polarity (Phase)
Audio polarity can be inverted at the transmitter so the audio can be mixed
with other microphones without comb filtering. The polarity can also be in-
verted at the receiver outputs.
Rolloff
Compat
StepSiz
Phase
Phase
Pos.
Neg.
Setting Transmitter Output Power
The output power can be set to 25 mW, 50 mW or
100 mW.
Compat
StepSiz
Phase
TxPower
TxPower
25 mW
50 mW
100 mW
Recorded File Naming
Choose to name the recorded files by the sequence number or by the clock
time.
Naming
Seq #
Clock
TxPower
Naming
SD Info
Default

www.lectrosonics.com 19
MicroSDHC Memory Card Info
MicroSDHC Memory Card information including space remaining on card.
TxPower
Naming
SD Info
Default
[SMWB ]
Max Rec
E.........................F
0/ 14G
Fuel gauge
Storage used
Storage capacity
Available recording
time (H : M : S)
Restoring Default Settings
This is used to restore the factory settings.
TxPower
Naming
SD Info
Default
Default
settings
No
Ye s