Lectrosonics SMB Series User manual

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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/europe
SMDB/E01, SMDB/E02
Dual battery Transmitter
SMB/E01, SMB/E02
Single battery Transmitter
SMB Series
Digital Hybrid Wireless®
U.S. Patent 7,225,135
16 August 2019

LECTROSONICS, INC.2
SMB Series Transmitters
SMB Series transmitters are ideal
for motion picture and television
production, live theater and other
productions where costuming is
prevalent and the wireless must be
concealed. Despite their tiny size,
the transmitters are feature rich and
well suited to demanding production
environments where outstanding
audio quality and RF performance
are mandatory in the midst of tem-
perature and moisture extremes.
Both models are compatible with
the LectroRM app from New Endian
LLC for hands free setup and ad-
justment. The transmitter can be put
to sleep to conserve battery power
during setup while the transmitter
is buried deep inside costuming,
then awakened for normal operation
when the production begins. Other
features include frequency and
audio level adjustment and control
lockout.
Operating frequencies:
Block 470 470.100 - 495.600 MHz
Block 19 486.400 - 511.900 MHz
Block 20 512.000 - 537.500 MHz
Block 21 537.600 - 563.100 MHz
Block 22 563.200 - 588.700 MHz
Block 23 588.800 - 614.300 MHz
Block 606 606.000 - 631.500 MHz
Block 24 614.400 - 639.900 MHz
Block 25 640.000 - 665.500 MHz
Block 26 665.600 - 691.100 MHz
E02 Additional Frequencies:
Block 27 691.200 - 716.700
Block 28 716.800 - 742.300
Block 29 742.400 - 767.900
Block 30 768.000 - 793.500
Block 31 793.600 - 819.100
Block 32 819.200 - 844.700
Block 33 844.800 - 861.900
(100 kHz Steps)
NOTE: It’s the user’s responsibility to select
the approved frequencies for the region
where the transmitter
is operating.
RF Power output: 50 mW

www.lectrosonics.com 3
Controls and Functions
LCD Screen
Used to display the status of the selected function.
Power LED
Indicates power status and battery strength.
Audio Input Jack
Accommodates most lavaliere and dynamic microphones, and line level
signals.
Modulation LEDs
Provides a visual indication of the audio input signal level - either red or green
to indicate modulation levels.
Audio Button
Used to display the audio level setting (0 dB to 44 dB) on the LCD and used
with the Up and Down arrows to adjust the audio level input from the micro-
phone.
FREQ Button
Used to set the operating frequency and toggle the LCD between the operating
frequency in MHz and a two-digit hexadecimal frequency code.
Up/Down Arrows
Used to adjust the selected function or parameter.
Battery Compartment, Cover Plate and Opener
Used to install or remove battery/batteries.
Battery
Compartment
Retaining
Screw
Battery
Compartment
Cover Plate
Audio
Input Jack
AUDIO Button
LCD
FREQ Button
Modulation
LEDs
PWR LED
UP Arrow
DOWN Arrow
Antenna
Jack

LECTROSONICS, INC.4
Operating Instructions
Power On
1) Ensure that good batteries are installed.
2) Simultaneously press and hold the AUDIO
and FREQ buttons until the Power On Boot
Sequence is initiated (3 seconds).
Power Off
1) Simultaneously press and hold the AUDIO and
FREQ buttons while observing that the word
“Off” appears in the LCD along with a counter.
2) When the counter reaches “0”, the unit turns off.
Note: If the AUDIO and FREQ buttons are released before the end of
the countdown, the unit will not turn off.
Standby Mode
From the “OFF” position, quickly press and release
both the AUDIO and FREQ buttons simultaneously
to enter and exit this mode. Allows the user to verify
or change the transmitter’s operating frequency or
audio input level without transmitting any signals.
Selecting the Compatibility Mode and Power
SMB Series transmitters will work with all E01
Series Digital Hybrid Wireless®receivers in the
native, compandor-free mode and with E01 Series
IFB receivers. Consult your dealer or service center
regarding use with other models and brands.
Note: RF transmission is prevented while
selecting Compatibility Modes. Also, the transmitter exits the
Compatibility Mode screen to Standby Mode. (See Standby Mode, this
section.)
1) Set the receiver’s audio controls to minimum.
2) From a power off condition, press and hold the Up arrow, then press the
AUDIO and FREQ buttons simultaneously.
3) The LCD will display the current Compatibility Mode. Use the Up or
Down arrow button to set the Compatibility Mode to match the corre-
sponding receiver.
Hbr - This is the factory default setting and works with all Lectrosonics
E01 Series Digital Hybrid Wireless® receivers, including the Venue.
IFb - This mode works with all Lectrosonics IFB compatible receivers.
4) The selected compatibility mode will be the current Compatibility Mode
until reset using this procedure. Pressing AUDIO or FREQ exits into the
Standby Mode. To power off from the compatibility mode screen, press
AUDIO and FREQ together.
Initial Power On
Timer Screen
Initial Power Off
Timer Screen
Standby Screen
Digital Hybrid Wireless®
Compatibility Mode

www.lectrosonics.com 5
Setting Transmitter Operating Frequency
The Operating Frequency of the SMB Series
transmitter is displayed either in MHz or as a
two-digit hexadecimal number. Pressing the FREQ
button toggles between the two display modes.
The frequency can be set with the unit in Standby
Mode or while powered up for normal operation.
Note:You must first find a clear frequency
with the receiver, then set the transmitter to
match.
To change the Operating Frequency of the SMB
Series transmitter:
1) Press the FREQ button to enter this screen.
Note: The default display is in MHz. Pressing the FREQ button again
displays the operating frequency as a two-digit hexadecimal number.
2) While holding the FREQ button, use the Up or Down arrow buttons to
move the operating frequency up or down in 100 kHz increments from
the current setting. Holding the Up or Down arrows will cause rapid scroll-
ing through the frequencies.
Note: The operating frequency displayed on the LCD wraps as it
reaches the upper or lower end of its range. Thus, if you intend to
move the operating frequency from the lower end of the range to the
upper end, it may be faster to do this by using the Down arrow until the
frequency wraps to the upper end
Frequency displayed as
two-digit hexadecimal
number
Frequency displayed
in MHz

LECTROSONICS, INC.6
Adjusting the Low Frequency Roll-off
Repeatedly press the AUDIO button until the LF
roll-off adjustment screen appears. Then press
and hold the AUDIO button while selecting the
desired roll-off frequency with the UP and DOWN
arrows.
The roll-off frequency can be set to 35, 50, 70, 100, 120 and 150 Hz.
Attaching a Microphone and Adjusting Gain
The front panel Modulation LEDs indicate limiter activity. (See chart below.)
Once set, the transmitter’s audio level setting should not be used to control
the volume of your sound system or recorder levels.
This gain adjustment matches the transmitter
gain with the
microphone’s
output level, the user’s voice level and the
microphone’s position. The audio input
level can be set with the unit in Standby
Mode or powered up for normal operation.
Note: Different voices will usually require different settings of the
AUDIO control, so check this adjustment for each person using the
system. If several different people will be using the transmitter and
there is not time to make the adjustment for each individual, adjust it for
the loudest voice.
1) With SMB Series transmitter powered off, insert the microphone plug into
the Audio Input Jack, aligning the pins and ensuring that the connector
locks.
2) Place the SM/E01 in Standby Mode, or if the unit is to be powered up and
adjusted, mute the main sound system prior to powering up the transmit-
ter.
3) Position the microphone in the location where it will be used in actual
operation.
4) Observe the transmitter audio level LEDs while speaking or singing
into the microphone at the same voice level that will be used during the
program. While holding the AUDIO button, press the Up or Down arrow
buttons until the both the -20 and -10 LEDs glow green, with the -20 LED
occasionally flickering red (+0 dB to +10 dB range during peaks).
Note: Setting the audio level too high reduces the dynamic range of the
audio signal. Setting the audio level too low may cause hiss and noise
in the audio.
5) If the unit was set up in Standby Mode, it will be necessary to power up the
SMB Series transmitter and adjust the remaining components of the audio
system prior to use.
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

www.lectrosonics.com 7
Locking or Unlocking the Control Panel
The Lock mode protects the transmitter from
accidental changes to its settings.
1) Ensure the transmitter setup is complete.
2) Simultaneously press both the Up and Down
arrow buttons to start the Lock timer. When
the timer reaches zero, “Loc” is displayed and
the controls are locked.
Important: The only ways to unlock a locked transmitter are to
remove the battery or unlock it via remote. It cannot be unlocked or
powered off using the buttons. The remote function will work only if
the transmitter was previously configured to respond to remote. The
unit will always power up in “unlocked” mode.
We recommend using lithium or high-capacity rechargeable batteries for
longest life.
Note: Standard zinc-carbon batteries marked “heavy-duty” or “long-
lasting” are not adequate.
The battery status circuitry is designed for the voltage drop over the life of
lithium batteries.
To install new batteries:
1) Turn the Battery Cover Plate Opener counterclockwise, open the battery
compartment and remove any old
batteries.
2) Insert the new battery (or batteries) into the housing, positive (+)
terminal first.
Important: On dual-battery transmitters, BOTH
batteries go positive (+) terminal first.
3) Replace the Battery Cover
Plate and tighten the
Opener.
Battery Installation
Do Not
Cover
Gore-
Tex® Vent

LECTROSONICS, INC.8
Configuring for Remote Function
Some transmitter settings can be changed with the
LectroRM App (available from a third party from
IOS and Android). However, you must first config-
ure the SMB Series transmitter to accept remote
commands:
1) Press and hold the Down Arrow Button then
power on the transmitter by pressing the
Audio and Freq buttons simultaneously.
2) The LCD will display the status, either “rc ON” or “rc OFF.” To change the
setting, press the Up or Down arrow button.
3)Power Off the transmitter by pressing the Audio and Freq buttons simulta-
neously. The RC setting will persist when you Power Up the transmitter
again.
Note: SMB Series transmitters with firmware version 1.6 and later are
factory set to “rc ON” by default.
Remote Function Screens
Configuring for Power Restore
Power Restore will return your transmitter to set-
tings that were in effect before it was powered
off. This eliminates the need to manually turn the
power back on after a battery has run down all the
way.
1) Press and hold the Down Arrow Button then
power on the transmitter by pressing the
Audio and Freq buttons simultaneously.
2) The LCD will display the status, either “rc ON” or “rc OFF.” Press “AU-
DIO” or “FREQ” key to scroll to the “PbAc 0” setting and use arrow keys
to turn to “PbAc 1” for on.
3)When power is restored the unit will turn on with previous settings.
Power Restore Screens

www.lectrosonics.com 9
Using the Silver Paste
Threads provide
electrical contact
Silver paste is applied to thumbscrew threads
on new units at the factory to improve the
electrical connection from the battery compart-
ment through the housing on any SMB Series
transmitter. This applies to the standard battery
door and the battery eliminator.
The small enclosed vial
contains a tiny amount (25
mg) of silver conductive paste.
A small speck of this paste
will improve the conductivity
between the thumbscrew and
the case.
With improved conductivity (lower resistance) more of the battery voltage can
get to the internal power supplies causing reduced current drain and longer
battery life. Though the amount seems very small, it is enough for years of
use. It is, in fact, 25 times the amount that we use on the thumbscrews at the
factory.
To apply the silver paste, first completely remove the cover plate from the SM
housing by backing the thumbscrew completely out of the case. Use a clean,
soft cloth to clean the threads of the thumbscrew.
NOTE: Do NOT use alcohol or a liquid cleaner.
Simply hold the cloth around the threads and turn the thumbscrew. Move to
a new spot on the cloth and do it again. Do this until the cloth remains clean.
Now, clean the threads in the case by using a dry cotton swab (Q-tip) or
equivalent. Again, clean the case threads until a fresh cotton swab comes
away clean.
Open the vial, and transfer a pinhead speck of silver paste to the second
thread from the end of the thumbscrew. A easy way to pickup a speck of paste
is to partially unfold a paper clip and use the end of the wire to acquire a tiny
bit of paste. A toothpick will also work. An amount that covers the end of the
wire is sufficient.
It is not necessary to spread the paste more than a little bit on the thread as
the paste will spread itself every time the thumbscrew is screwed in and out of
the case during battery changes.
Do not apply the paste to any other surfaces.
The cover plate itself can be cleaned with
a clean cloth by rubbing the slightly raised
rings on the plate where it contacts the bat-
tery terminal. All you want to do is to remove
any oils or dirt on the rings. Do not abrade
these surfaces with a harsh material such
as a pencil eraser, emery paper, etc., as this
will remove the conductive nickel plating and
expose the underlying aluminum, which is a
poor contact conductor.
Apply paste to second thread
from end of thumbscrew

LECTROSONICS, INC.10