Lectrosonics DBu-LEMO User manual

INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com
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Purchase Date:
DBu-LEMO
Digital Belt Pack Transmitter
DBu-LEMO
DBu-LEMO/E01
LEMO®is a registered trademark of Interlemo Holding S.A.
Corporation Switzerland
WARNING: Moisture, including
talent’s sweat, will damage the
transmitter. Wrap the DBu in a
plastic baggie or other protection to
avoid damage.

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
2
Introduction
The DBu-LEMO transmitter employs high eciency
digital circuitry for extended operating time on two AA
batteries. The transmitter can tune in coarse or ne steps
across the UHF television band from 470.100 to 607.950
MHz (E01: 470.100 - 614.375 MHz), with a selectable
output power of 10, 25 or 50 mW. The pure digital archi-
tecture enables AES 256-CTR encryption for high level
security applications.
Studio quality audio performance is assured by high
quality components in the preamp, wide range input gain
adjustment and DSP-controlled limiting. Input connec-
tions and settings are included for any lavaliere micro-
phone, dynamic microphones and line level inputs. Input
gain is adjustable over a 52 dB range in 1 dB steps to al-
low an exact match to the input signal level, to maximize
the dynamic range and signal to noise ratio.
Frequency Agility
The transmitter tunes across the entire frequency range,
from 470.100 MHz to 607.950 MHz (E01: 470.100 -
614.375).
Encryption
When transmitting audio, there are situations where
privacy is essential, such as during professional sporting
events, in court rooms or private meetings. For instances
where your audio transmission needs to be kept secure,
without sacricing audio quality, Lectrosonics imple-
ments AES256 encryption in our digital wireless micro-
phone systems. High entropy encryption keys are rst
created by a Lectrosonics receiver, such as the DSQD
Receiver. The key is then synced with the DBu-LEMO
via the IR port. The audio will be encrypted and can only
be decoded if both DBu-LEMO and receiver have the
matching encryption keys. If you are trying to transmit an
audio signal and keys do not match, all that will be heard
is silence.
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.
Table of Contents
Introduction........................................................................... 2
Frequency Agility ............................................................... 2
Encryption .......................................................................... 2
DSP-controlled Input Limiter............................................. 2
DBu-LEMO Block Diagram................................................ 3
Battery Installation ............................................................... 4
Battery Status LED Indicator............................................. 4
Belt Clips............................................................................ 5
IR (infrared) Port................................................................. 5
Audio Input......................................................................... 5
Features and Functions ....................................................... 5
Operating Instructions ......................................................... 6
Powering On in Operating Mode....................................... 6
Powering On in Standby Mode ......................................... 6
Powering Off ...................................................................... 6
Power Menu Options............................................................ 6
Entering the Power Menu.................................................. 6
Main Menu and Setup Screen Details ................................ 6
Entering the Main Menu .................................................... 6
LCD Menu Map......................................................................7
Menu Item Descriptions.... ...................................................7
Gain/Adjusting the Inut Gain............................................. 8
Roll Off................................................................................ 8
InpCfg (Mic Input Configuration)....................................... 8
Setting Frequency.............................................................. 8
Transmitting Tuning Groups .............................................. 8
RF On? ............................................................................... 9
Setting Transmit Output Power ......................................... 9
Send Freq........................................................................... 9
SendAll ............................................................................... 9
GetFreq .............................................................................. 9
GetAll.................................................................................. 9
Key Type............................................................................. 9
WipeKey ............................................................................. 10
SendKey ............................................................................. 10
Programmable Switch Functions...................................... 10
Selecting Battery Type....................................................... 10
Remote............................................................................... 10
Locking the Settings.......................................................... 11
Backlight ............................................................................ 11
Defaults .............................................................................. 11
About.................................................................................. 11
Whip Antennas ..................................................................... 11
Microphone Wiring ............................................................... 11
Line Input Wiring and Use ................................................... 11
Supplied and Optional Accessories.................................... 12
LectroRM............................................................................... 13
Wireless Designer Software ............................................... 14
Firmware Update Instructions............................................. 14
Specications ....................................................................... 14
Troubleshooting.................................................................... 15
Service and Repair ............................................................... 16
Returning Units for Repair................................................. 16

Digital Belt-Pack Transmitter
Rio Rancho, NM 3
DBu-LEMO Block Diagram
Consumer Alert for US Users - FCC Order DA 10-92
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system
without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power
level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should
also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change.
For more information, call the FCC at 1-888- CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC’s wireless microphone website at
www.fcc.gov/cgb/wirelessmicrophones. To operate wireless microphone systems at power greater than 50mW, you must qualify
as a Part 74 user and be licensed. If you qualify and wish to apply for a license go to: http://www.fcc.gov/Forms/Form601/601.
html
Filters
Keypad
(2) AA
Batteries
Oscillator
VCTXO
I2S I2S
Voltage Controlled
Oscillator
Final
Amplifier
Control
PLL Ref Phase Locked Loop
DSP Clock
Switching
Power
Supply
Microprocessor
Power
LED
Tr icolor
D-A Convert-
er
A-D
Converter
Shunt
Limiter
Limiter Control
Gain
Adj
HI/Lo
Pass
Filter
Input
Preamp
Bias Voltage
0, 2 or 4V
Servo Bias
Supply
+5V
I + Q
Baseband
Signals
Low
pass
filters
IQ Modulator
UART USB
Jack
Security Key
Audio
Firmware
Update
Key Received
Blue LED
Low
Pass
Filter
Buffer
36.864 mHz
IR Port
DBu/LEMO Transmitter
Input
Jack

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
4
Battery Installation
The transmitter is powered by two AA batteries. We rec-
ommend using two AA Duracell Ultra batteries.
The battery status circuitry compensates for the dier-
ence in voltage drop between alkaline and lithium batter-
ies across their usable life, so it’s important to select the
correct battery type in the menu.
Because rechargeable 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 us-
ing the battery timer function available in the receiver.
Push outward on the battery compartment door and lift it
to open.
Slide door out to release catch
Lift door to open
Insert the batteries according to the markings on the
back of the housing.
If the batteries are inserted incorrectly, the door will close
but the unit will not operate.
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.
Contact springs
Battery Status LED Indicator
Alkaline, lithium or rechargeable batteries can be used
to power the transmitter. The type of batteries in use are
selectable in a menu on the LCD.
When alkaline or lithium batteries are being used, the
LED labeled BATT on the keypad glows green when the
batteries are good. The color changes to red when the
they are nearing the end of life. When the LED begins to
blink red, there will be only a few minutes remaining.
The Power/Function LED on the top panel will mirror the
keypad LED unless the programmable switch is set to
Mute, and the switch is turned on.
The exact point at which the LEDs turn red will vary with
battery brand and condition, temperature and power
consumption. The LEDs are intended to simply catch
your attention, not to be an exact indicator of remaining
time.
A weak battery will sometimes cause the Power LED to
glow green immediately after the transmitter is turned on,
but it will soon discharge to the point where it will turn
red or the unit will turn o completely.
Rechargeable batteries give little or no warning when
they are depleted. If you wish to use these batteries in
the transmitter, the most accurate way to determine run-
time status is by testing the time provided by a particular
battery brand and type, then using the BatTime function
to determine remaining runtime.
NOTE: Refer to the Main Menu and Setup
Section for BatTime details.

Digital Belt-Pack Transmitter
Rio Rancho, NM 5
Features and Functions
Belt Clips
The wire belt clip may be removed by pulling the ends
out of the holes in the sides of the case. Be sure to have
a rm grip to avoid scratching the surface of the housing.
An optional spring-loaded, hinged belt clip (model num-
ber BCSLEBN) is also available. This clip is attached by
removing the plastic hole cap on the back of the housing
and mounting the clip with the supplied screw.
IR (infrared) Port
The IR port is available on the top of the transmitter for
quick setup using a receiver with this function available.
IR Sync will transfer the settings for frequency from the
receiver to the transmitter.
Audio Input
The input jack is a rugged 3-pin LEMO connector with a
threaded locking sleeve.
PWR/FUNC
AUDIO
-20 -10
IR PORT
u
470.100
-40 -20 +0
DBu
USB Port
Belt clip
mounting hole
Modulation
Indicators*
Programmable
Function Switch
LEMO
Audio
Input Jack
Antenna
Port
Belt clip
mounting hole
Battery
status LED
Full access to all settings is provided through the keypad
and LCD. The transmitter can also be congured as a
“one button” device by locking the ability to make chang-
es with the keypad, and conguring the top panel switch
as power on/o.
Battery
compartment
door
Key verication
LED**
Menu navigation
buttons
Power button
Return to
previous screen
IR Port
Remove hole cap to
attach spring loaded
belt clip
When the transmitter is set to MUTE, the -10 Modu-
lation Indicators LED will glow solid red. Otherwise,
the -10 and -20 Modulation Indicators LED will glow
light green or red depending on modulation levels.
The Key verication LED will glow solid blue if the
key is set to Universal or if an encryption key is
stored in the unit when set to Standard, Shared or
Volatile key policies. The blue LED will blink when in
these key modes and no key is stored.
*
**

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
6
Operating Instructions
Powering On in Operating Mode
Press and hold the Power Button for several seconds
until a moving bar on the LCD progresses.
Hold
for
Rf On 470.100
-40 -20 +0
DBu
When you release the button, the unit will be operational
with the RF output turned on and the Main Window dis-
played.
Powering On in Standby Mode
A brief press of the Power Button , and releasing it
before the moving bar progresses, will turn the unit on
with the RF output turned o. In this Standby Mode the
menus can be browsed to make settings and adjust-
ments without the risk of interfering with other wireless
systems nearby.
Hold
for
Rf On
Release Power
Button before
the moving bar
progresses to
enter standby
mode 470.100
-40 -20 +0
DBu
RF indicator blinks
After settings and adjustments are made, press the
power button again to turn the unit o, or turn on the
Transmit function by entering the main menu, selecting
Xmit, then RF On?
Powering O
Powering
O . . .
From any screen, power can be turned
o by selecting Pwr O in the power
menu, holding the Power Button in
and waiting for the moving bar to
progress, or with the programmable
switch (if it is congured for this
function).
If the power button is released, or the top panel switch is
turned back on again before the moving bar progresses,
the unit will remain turned on and the LCD will return to
the same screen or menu that was displayed previously.
NOTE: If the programmable switch is in the OFF
position, power can still be turned on with the
power button. If the programmable switch is
then turned on, a brief message will appear on
the LCD.
Connecting the Signal Source
The input jack is a rugged 3-pin LEMO connector with a
threaded locking sleeve.
Main Menu and Setup
Screen Details
Entering the Main Menu
The LCD and keypad interface makes it easy to browse
the menus and make the selections for the setup you
need. When the unit is powered up in either the operating
or the standby mode, press MENU/SEL on the keypad
to enter a menu structure on the LCD. Use the and
arrow buttons to select the menu item. Then press the
MENU/SEL button to enter the setup screen.
-40 -20 0
Gain
25
The prompt in the upper right corner may display one or
both arrows, depending upon what adjustment can be
made. If the changes are locked, a small padlock symbol
will appear.
Main Window Indicators
The Main Window displays on/o status, talkback or
audio mute status, standby or operating mode, operating
frequency, audio level and battery status.
470.100
-40 -20 +0
DBu
MUTE
Frequency (MHz)
RF On/O
Status
Battery status
Audio level
Audio Mute or
Talkback status
If the programmable switch function is set for Mute or
Talkback, the Main Window will indicate that the function
is enabled.
When the switch is turned on, the mute icon appearance
will change and the word MUTE will blink at the bottom
of the display. The -10 LED on the top panel will also
glow solid red.
470.100
DBu
MUTE
<–MUTE–>
Main Window will blink
the word MUTE when
the audio is muted
470.100
-40 -20 +0
DBu
MUTE

Digital Belt-Pack Transmitter
Rio Rancho, NM 7
LCD Menu Map
NOTE: The settings will be
stored when the BACK button
is pressed.
DBu-LEMO
Main Menu Tree
Rolloff
Input Gain Gain
22
Select option with arrow buttons
to select.
Select option with arrow buttons
to select.
to select.
Rolloff
70 Hz 1
InpCfg InpCfg
M152
Freq.
Xmit Select Freq in mHz or kHz with arrow buttons
to select.
Freq.
470.100
RF On?
Tx Power
Select option with arrow buttons
to select.
Select level with arrow buttons
Backlit
Backlit
On
30 Seconds
5 Seconds
Select option with arrow buttons
to select.
Bat Type
Bat Type
Alk.
Lith.
Select option with arrow buttons
to select.
Setup
LED Off LEDs
About
About
Select option with arrow buttons
to select.
DBuL/E01
V1.03
/1.06
Default Default
settings
Remote Select option with arrow buttons
to select.
No
Yes
Select option with arrow buttons
to select.
Remote
Enable
Ignore
On
Off
or to go back.
to get key.
to send key.
IR&Key
Select option with arrow buttons
to select.
Send Freq
Sync --->
Send Freq
Send All Send All
Get Freq Get Freq
Get All Get All
Select option with arrow buttons
to select.
Key Type Key Type
Standard
IR
SYNC
OK
IR
SYNC
OK
IR
SYNC
OK
IR
SYNC
OK
Locked? Yes
No
Select option with arrow buttons
to select.
Locked?
ProgramSw
TalkBk
Select option with arrow buttons
to select.
ProgSw
|-40 |-20 +0|


Wipe Key
Wipe Key?
No
Yes
Select option with arrow buttons
to select. Encrytion
key
ERASED
Send Key
Send Key
Send --->
Select option with arrow buttons
to select. IR
SYNC
OK

RF On?
Yes
No
TxPower
10 mW
25 mw
50 mW
Sync --->
Sync --->
Sync --->
AutoOn? No
Yes
Select option with arrow buttons
to select.
AutoOn?
Select option with arrow buttons
to select.
Select option with arrow buttons
to select.
BACK
This menu item is only
available in Shared Key
mode

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
8
Menu Item Descriptions
Input
Gain
Gain can be set, from -7 to +44, by using the and
arrow buttons.
Adjusting the Input Gain
The two bicolor Modulation LEDs on the top panel pro-
vide a visual indication 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 O O
-20 dB to -10 dB Green O
-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
Powering On in Standby Mode on page 6).
2) Navigate to the Gain setup screen.
-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 oc-
cur during use, or set the output level of the instru-
ment 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 icker 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 transmitter
gain adjustment set according to these instruc-
tions, and do not change it to adjust the audio
output level of the receiver.
Rollo (Low Frequency Roll-o)
The low frequency audio roll-o is adjustable to optimize
performance for ambient noise conditions or personal
preference.
Low frequency audio content may be desirable or dis-
tracting, so the point at which the roll-o takes place can
be set to 20, 35, 50, 70, 100, 120 or 150 Hz.
Rolloff
70 Hz
InpCfg (Mic Input Conguration)
This setting allows for conguration for use with certain
microphones, or for setting custom parameters.
Available options are: M152, MKE2, COS-11, B6, DPA,
PSA, Dynamic, Line In, Custom (congurable) and Other
Lav.
Xmit
Setting Frequency
Frequency (mHz and kHz) in can be set by using the
MENU/SEL button to choose mHz or kHz and the and
arrows to adjust frequency.
Tuning Groups
Tuning groups can be received via IR (Infared) port sync
from a receiver. The group frequencies are set by the re-
ceiver. The group names will be displayed at the bottom
of the screen as Grp x, Grp w, Grp v, or Grp u.
Use the MENU/SEL button to toggle between options
and the and arrow buttons to adjust.

Digital Belt-Pack Transmitter
Rio Rancho, NM 9
Gain
Freq.
ProgSw
Rolloff
RF On?
Turn Rf o to preserve battery power while setting other
transmitter functions. Turn it back on to begin trans-
mitting.. Use the and arrow buttons to toggle and
MENU/SEL to save.
TxPower
Allows the transmitter output power to be set as 10, 25
or 50 mW. Use the and arrow buttons to scroll and
MENU/SEL to save.
IR&Key
The operations below depend on the compatibility mode
selected and the receiver used.
SendFreq
Sync to send frequency to another device via the IR Port.
SendAll
Sync to send all available settings to another device via
the IR port, including the performer’s name, (or whatever
name the user chooses for the DBu), frequency, mixer
settings and limiter settings.
NOTE: SendAll does not work accurately with
multi-channel receivers.
GetFrq
Sync to receive (get) frequency from the receiver via the
IR port.
GetAll
Sync to receive (get) all available settings from another
device via the IR port, including the performer’s name, (or
whatever name the user chooses for the DBu), frequency,
and talkback state.
Key Type
The DBu receives an encryption via the IR port from a
key generating receiver. Begin by selecting a key type
in the receiver and generating a new key (key type is
labeled KEY POLICY in the DSQD receiver). Set
the matching KEY TYPE in the DBu and transfer the key
from the receiver (SYNC KEY) to the DBu via the IR ports.
A conrmation message will display on the receiver
display (IR SYNC OK) if the transfer is successful. The
transmitted audio will then be encrypted and can only
be listened to if the receiver has the matching encryption
key.
The DBu has four options for encryption keys:
• Universal: This is the most convenient and basic
option available, and the default setting on all Lec-
trosonics D2 digital units. All encryption-capable
Lectrosonics transmitters and receivers contain the
Universal key. The key does not have to be gener-
ated in the DCR822. Simply set the Lectrosonics
encryption-capable transmitters and receivers to
Universal key type, and the encryption is in place.
This allows for convenient encryption amongst
multiple transmitters and receivers, but is not as
secure as creating a unique key.
• Shared: This key policy is designed for sports cov-
erage and similar applications where a unique key
provides enhanced security, but multiple transmit-
ters and receivers can share the same key. Once
generated by the receiver, the key can be trans-
ferred via IR to transmitters or additional receivers.
• Standard: This key policy provides excellent se-
curity, second only to the Volatile key policy. Once
a unique key is created in the receiver, it can be
transferred via IR only to transmitters, but not to
other receivers. The receiver tracks the number of
times the key is transferred. Once a Standard key
has been transferred 256 times, an alert will indi-
cate that a new key must be created.
• Volatile: This is the most robust key policy avail-
able. After a unique key is created, it can be
transferred only to transmitters, not other receivers.
If a transmitter is powered o, it must have the key
sent to it again from the receiver. If the receiver is
powered o, a new key must be generated and
sent to the transmitters. In encryption terms, this is
the “one time use” key management policy.

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
10
KeyType
Univrsal
Note: If Standard, Shared or Volatile Key is
selected and no key is stored, the blue LED will
blink.
WipeKey
This menu item is only available if Key Type is set to
Standard, Shared or Volatile. Select Yes to wipe the cur-
rent key and enable the DBu to receive a new key.
WipeKey?
No
Ye s
SendKey
This menu item is only available if Key Type is set to
Shared. Press MENU/SEL to sync the Encryption key to
another transmitter or receiver via the IR port.
SendKey
Share:
Setup
ProgSw
(Programmable Switch Functions)
The programmable switch on the top panel can be con-
gured using the menu to provide several functions:
• (none) - disables the switch
• Mute - mutes the audio when switched on; LCD
will display a blinking “MUTE” and the -10 LED will
glow solid red.
• Power - turns the power on and o
• TalkBk - switches the audio output on the receiver
to a dierent channel for communication with the
production crew. Requires a receiver with this func-
tion enabled.
ProgSw
Power
Use the and
arrow buttons to
select the desired
function or disable
the switch
NOTE: The programmable switch will continue
to operate whether or not settings are locked.
Selecting Battery Type
The voltage drop over the life of batteries varies by type
and brand. Be sure to set the correct battery type for
accurate indications and warnings. The menu oers
alkaline or lithium types.
BatType
Alk.
Lith.
If you are using rechargeable batteries, it is better to use
the timer function on the receiver to monitor the battery
life rather than the indicators on the transmitter. Re-
chargeable batteries maintain a fairly constant voltage
across the operating time on each charge and stop work-
ing abruptly, so you will have little or no warning as they
reach the end of operation.
Remote
Remote control “dweedle” tones from a smart phone can
be used to control the transmitter. This setting Enables or
Disables it.
Locked?
The settings can be locked to prevent inadvertent
changes being made.
Locked?
Ye s
No -40 -20 0
Gain
25
A small padlock symbol will appear on adjustment
screens when changes have been locked.
When settings are locked, several controls and actions
can still be used:
• Settings can still be unlocked
• Menus can still be browsed
• Programmable switch still works (Mute, Talkback
and On/O)
• Power can be turned o by using the programable
switch if in Power mode or by removing the batter-
ies.

Digital Belt-Pack Transmitter
Rio Rancho, NM 11
Backlit
Sets the screen backlight to be always on, on for 30 sec-
onds or on for 5 seconds.
LED O
Turns all LEDs on or o.
Restoring Default Settings
This is used to restore the factory settings.
About
This shows version and rmware information.
Whip Antennas
Because the transmitter tunes across such a broad
frequency range, it is best to use the appropriate antenna
for maximum operation. Two antennas are included with
the transmitter, and are shipped from the factory pre-cut
and fully assembled. Each antenna covers three blocks.
Use the chart below to determine which antenna best ts
your needs.
Frequency Cap
Band Block Range MHz Color Antenna
A1
470 470.100 - 495.600 Black AMM19
19 486.400 - 511.900 Black AMM19
20 512.000 - 537.500 Black AMM19
B1
21 537.600 - 563.100 Red AMM22
22 563.200 - 588.700 Red AMM22
23 588.800 - 607.950 Red AMM22
Microphone Wiring
Looking into the 3 pin LEMO mic connector from the out-
side of the transmitter, the pin centered in the two guide
slots is pin 1 (ground). Pin 2 is a 1k resistor to ground.
Pin 3 is the audio/bias connection for two-wire micro-
phones and line inputs.
Pin 1
Pin 2 Pin 3
Guide slots
Voltages, polarity, impedance and line level for all signal
sources are selected by menus. Menu selections in-
clude presets for popular microphones, and a sub-menu
for manual setup. Refer to the section entitled Setup
Screens on the previous page for details.
Two-wire electret lavaliere:
Pin 1 - Ground (shield)
Pin 3 - Audio and Bias
Sanken COS-11 lavaliere
Recommended Wiring:
Pin 1 - Shield (ground)
Pin 2 - White (source load)
Pin 3 - Black (bias and audio)
NOTE: The COS-11 can also be wired in a two-
wire configuration. Contact Plus24/Sanken for
details.
The Sanken CUB-01 is not supported.
Line Input Wiring and Use
Pin Conguration:
Pin 1: Shield (ground)
Pin 2: Audio
Transmitter Settings:
Unlike the old conguration, the new line input congura-
tion requires no xed gain setting. The gain setting can
be adjusted as needed for the specic input level used.

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
12
Supplied Accessories
P/N 26895
Wire belt clip
40096
(2) Alkaline batteries. Brand may vary.
AMM19 and AMM22
Lectrosonics provides “whip” antennas for use with the
WM transmitter. The antennas are cut to the frequency
range shown in the chart on p. 11 and include a 50 Ohm
SMA connector.
Optional Accessories
BCSLEBN
Spring-loaded belt clip
ACOAXTX
Antenna, Coaxial, SMA Plug for Transmitters, Specify
Block.
LTCVR
Silicone cover prrotects from moisture and dust.

Digital Belt-Pack Transmitter
Rio Rancho, NM 13
LectroRM
By New Endian LLC
LectroRM is a mobile application for iOS and Android
operating systems to remotely control Lectrosonics
Transmitters.
The app remotely changes settings on the transmitter
through the use of encoded audio tones, which when
received by the attached microphone, will alter the con-
gured setting. The app was released by New Endian,
LLC in September 2011. The app is available for down-
load and sells for about $25 on the Apple App Store and
Google Play Store.
LectroRM’s remote control mechanism is the use of an
audio sequence of tones (dweedles) that are interpreted
by the transmitter as a conguration change. The set-
tings available in LectroRM are:
• Audio Level (Gain)
• Frequency
• Sleep Mode
• Lock Mode
• Output Power
• Low Frequency Roll-o
• LED on/o
User Interface
The user interface involves selecting the audio sequence
related to the desired change. Each version has an inter-
face for selecting the desired setting and the desired op-
tion for that setting. Each version also has a mechanism
to prevent accidental activation of the tone.
iOS
The iPhone version keeps each available setting on a
separate page with the list of options for that setting.
On iOS, the “Activate” toggle switch must be enabled to
show the button which will then activate the audio. The
iOS version’s default orientation is upside-down but can
be congured to orient right-side up. The purpose for this
is to orient the device’s speaker, which is at the bottom
of the device, closer to the transmitter microphone.
Android
The Android version keeps all settings on the same page
and allows the user to toggle between the activation
buttons for each setting. The activation button must be
long pressed to activate. The Android version also allows
users to keep a congurable list of full sets of settings.
Activation
For a transmitter to respond to remote control audio
tones, the transmitter must meet certain requirements:
• The transmitter must not be turned o; it can how-
ever be in sleep mode.
• The transmitter must have a later rmware version
that enables remote control.
• Remote control must be enable on the transmitter.
Please be aware this app is not a Lectrosonics
product. It is privately owned and supported by
New Endian LLC, www.newendian.com.

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
14
Wireless Designer
Software
Download the Wireless Designer software installer from
the web site under the SUPPORT tab at:
https://www.lectrosonics.com/wireless-designer.html
Note: If Wireless Designer is already installed,
you must uninstall it before attempting to install
a new copy. Also review the Revision History to
determine whether or not an update is relevant
for you.
Firmware Update
Instructions
Firmware updates are made with a Wireless Designer le
downloaded from the web site, and the DBu-LEMO con-
nected via USB.
The USB port on the transmitter requires a micro-B male
plug on the connecting cable. The other end of the cable
would normally be a USB A-Type male connector to t
the most common type of USB jack used on computers.
USB Port
Refer to Help in Wireless Designer software for the pro-
cedure.
Specications
Operating Frequencies: DBu-LEMO: 470.100 - 607.950 MHz
DBu-LEMO/E01: 470.100 - 614.375 MHz
Frequency
Selection Steps: 25 kHz
RF Power output: Selectable; 10, 25 or 50 mW
Frequency Stability: ± 0.002%
Digital Modulation: 8PSK
Equivalent input noise: –128 dBV
Input level: Nominal 2 mV to 300 mV, before limiting
Greater than 1V maximum, with limiting.
Input impedance: • Mic: 300 Ohm
• Line: 2k Ohm
Input limiter: Dual envelope type; 30 dB range
Gain control range: 52 dB in 1 dB steps; digital control
Modulation indicators: • Dual bicolor LEDs indicate modulation of
-20, -10, 0 and +10 dB referenced to full
modulation
• LCD bar graph
Controls: • Top panel toggle switch; programmable as
power, mute or none (off) function
• Side panel membrane switches with LCD
interface for power on/off and all setup and
configuration controls
Audio Input Jack: LEMO 00 Series 3-pin
Antenna: Galvanized steel, flexible wire
Battery: Two AA Duracell Ultra recommended
Battery Life: 4.5 hours; Duracell Ultra alkaline
Weight: 6.24 ounces (177 grams), including two AA
batteries and wire belt clip
Dimensions: 3.2 x 2.5 x .74 in. (86 x 62 x 19 mm)
Emission Designator: 170KG1E
Specifications subject to change without notice.
For body worn operation, this transmitter model has
been tested and meets the FCC RF exposure guidelines
when used with the Lectrosonics accessories
supplied or designated for this product. Use of other
accessories may not ensure compliance with FCC
RF exposure guidelines. Contact Lectrosonics if you
have any questions or need more information about
RF exposure using this product..
This device complies with FCC radiation exposure
limits as set forth for an uncontrolled environment.
This device should be installed and operated so
that its antenna(s) are not co-located or operating
in conjunction with any other antenna or transmitter.
This device complies with ISED Canada radiation
exposure limits as set forth for a controlled
“professional” use only.
Cet appareil est conforme avec les normes d’Industrie
Canada concernant les limites d’exposition aux
radiations pour un usage professionnel contrôlé
seulement.

Digital Belt-Pack Transmitter
Rio Rancho, NM 15
Troubleshooting
Symptom: Possible Cause:
Transmitter Battery LED o 1. Batteries are inserted incorrectly.
when Power Switch “ON” 2. Batteries are low or dead.
No Transmitter Modulation LEDs 1. Gain control turned all the way down.
when Signal Should be Present 2. Batteries are inserted incorrectly. Check power LED.
3. Mic capsule is damaged or malfunctioning.
4. Mic cable damaged or miswired.
5. Instrument Cable damaged or not plugged in.
6. Musical instrument output level set too low.
Receiver Indicates RF But No Audio 1. Audio source or cable connected to transmitter is defective. Try
using an alternate source or cable.
2. Make sure the compatibility mode is the same on transmitter and
receiver.
3. Ensure musical instrument volume control is not set to minimum.
Receiver RF Indicator O 1. Ensure that the transmitter and receiver are set to the same
frequency, and that the hex code matches.
2. Transmitter not turned on, or battery is dead.
3. Receiver antenna missing or improperly positioned.
4. Operating distance is too great.
5. Transmitter may be set to the Standby Mode. See page 8.
No Sound (Or Low Sound Level), Receiver 1. Receiver output level set too low.
Indicates Proper Audio Modulation 2. Receiver output is disconnected; cable is defective or miswired.
3. Sound system or recorder input is turned down.
Distorted Sound 1. Transmitter gain (audio level) is too high. Check Modulation
LEDs on transmitter and receiver while distortion is being heard.
2. Receiver output level may be mismatched with the sound
system or recorder input. Adjust output level on receiver to the
correct level for the recorder, mixer or sound system.
3. RF interference. Reset both transmitter and receiver to a clear
channel. Use scanning function on receiver if available.
Wind Noise or Breath “Pops’” 1. Reposition microphone, or use a larger windscreen, or both.
2. Omni-directional mics produce less wind noise and breath pops
than directional types.
Hiss and Noise -- Audible Dropouts 1. Transmitter gain (audio level) far too low.
2. Receiver antenna missing or obstructed.
3. Operating distance too great.
4. RF interference. Reset both transmitter and receiver to a
clear channel. Use scanning function on receiver if available.
5. Musical instrument output set too low.
6. Microphone capsule picking up RF noise. See item on page 17
entitled Microphone RF Bypassing.
Excessive Feedback (With Microphone) 1. Transmitter gain (audio level) too high. Check gain adjustment
and/or reduce receiver output level.
2. Microphone too close to speaker system.
3. Microphone is too far from user’s mouth.
It is important that you follow these steps in the sequence

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
16
Service and Repair
If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment
needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnecting
cables and then go through the Troubleshooting section in this manual.
We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop at-
tempt anything other than the simplest repair. If the repair is more complicated than a broken wire or loose connection,
send the unit to the factory for repair and service. Don’t attempt to adjust any controls inside the units. Once set at the
factory, the various controls and trimmers do not drift with age or vibration and never require readjustment. There are
no adjustments inside that will make a malfunctioning unit start working.
LECTROSONICS’ Service Department is equipped and staed to quickly repair your equipment. In warranty repairs
are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest
at rate plus parts and shipping. Since it takes almost as much time and eort to determine what is wrong as it does to
make the repair, there is a charge for an exact quotation. We will be happy to quote approximate charges by phone for
out-of-warranty repairs.
Returning Units for Repair
For timely service, please follow the steps below:
A. DO NOT return equipment to the factory for repair without rst contacting us by email or by phone. We need
to know the nature of the problem, the model number and the serial number of the equipment. We also need a
phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time).
B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed
your repair through our receiving and repair departments. The return authorization number must be clearly
shown on the outside of the shipping container.
C.Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the
proper packing materials. UPS is usually the best way to ship the units. Heavy units should be “double-boxed”
for safe transport.
D.We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or dam-
age to equipment that you ship. Of course, we insure the equipment when we ship it back to you.
Lectrosonics USA:
Mailing address: Shipping address: Telephone:
Lectrosonics, Inc. Lectrosonics, Inc. [phone]
PO Box 15900 561 Laser Rd. NE, Suite 102 [phone] Toll-free
Rio Rancho, NM 87174 Rio Rancho, NM 87124 [phone] Fax
USA USA
Web: E-mail:
www.lectrosonics.com [email protected]
[e-mail]
Lectrosonics Canada:
Mailing Address: Telephone: E-mail:
720 Spadina Avenue, [phone] Sales: [email protected]
Suite 600 [phone] Toll-free Service: [email protected]
Toronto, Ontario M5S 2T9 (877-7LECTRO)
[phone] Fax
Self-Help Options for Non-Urgent Concerns
Our Facebook groups and weblists are a wealth of knowledge for user questions and information. Refer to:
Lectrosonics General Facebook Group: https://www.facebook.com/groups/69511015699
D Squared, Venue 2 and Wireless Designer Group: https://www.facebook.com/groups/104052953321109
The Wire Lists: https://lectrosonics.com/the-wire-lists.html

Digital Belt-Pack Transmitter
Rio Rancho, NM 17

DBu-LEMO, DBu-LEMO/E01
LECTROSONICS, INC.
18

Digital Belt-Pack Transmitter
Rio Rancho, NM 19

581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com
[phone] • fax [phone] • [phone] US and Canada • [email protected]
30 August 2022
LIMITED ONE YEAR WARRANTY
The equipment is warranted for one year from date of purchase against defects in
materials or workmanship provided it was purchased from an authorized dealer. This
warranty does not cover equipment which has been abused or damaged by careless
handling or shipping. This warranty does not apply to used or demonstrator equipment.
Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any
defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot
correct the defect in your equipment, it will be replaced at no charge with a similar new
item. Lectrosonics, Inc. will pay for the cost of returning your equipment to you.
This warranty applies only to items returned to Lectrosonics, Inc. or an authorized
dealer, shipping costs prepaid, within one year from the date of purchase.
This Limited Warranty is governed by the laws of the State of New Mexico. It states the
entire liablility of Lectrosonics Inc. and the entire remedy of the purchaser for any
breach of warranty as outlined above. NEITHER LECTROSONICS, INC. NOR
ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT
SHALL BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL,
OR INCIDENTAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THIS EQUIPMENT EVEN IF LECTROSONICS, INC. HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF
LECTROSONICS, INC. EXCEED THE PURCHASE PRICE OF ANY DEFECTIVE
EQUIPMENT.
This warranty gives you specific legal rights. You may have additional legal rights which
vary from state to state.