Lectrosonics LMb/E01 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/manuals
LMb
Digital Hybrid Wireless®
UHF Belt Pack Transmitter
LMb, LMb/E01, LMb/E06, LMb/X
U.S. Patent 7,225,135
15 July 2019

LECTROSONICS, INC.2
Controls and Features
-20
-10
BAT
Input Jack
Programmable
Switch
Modulation
LEDs
Power/Function
LED
-20
-10
BAT
Move switch
toward the white
dot to turn it on
Lectrosonics, Inc.
Made in U.S.A.
IC: 8024A-LMBC1
470.100 - 537.575 MHz
Model: LMBC1
S/N XXXXX
IR
5
623.400
-40 -20 0
A
IR
PORT 5
494.500
-40 -20 0
1
b 19
IR Sync
Port
RF Indicator
Battery icon
Reserved for Future Use
Battery Status LED
Menu
navigation
buttons
Power Button
Slide door
outward
to open
battery
door and
access
batteries
Belt clip mounting hole

www.lectrosonics.com 3
Keypad and LCD Interface
5
623.400
-40 -20 0
A
5
494.500
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1
b 19
BATT LED
Glows green when the batteries are
good. As the batteries are drained,
the LED will turn to a steady red at a
mid-point during their life, then begin
to blink red when only a few minutes of
operation remain.
MENU/SEL Button
Pressing this button enters the menu
and selects menu items to enter the
setup screens.
BACK Button
Pressing this button returns to the previous menu or screen.
Power Button
Turns the unit off and on and enters the power menu.
Arrow Buttons
Used to navigate the menus.
Main Window Indicators
The Main Window displays the block 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.
51
494.500
-40 -20 0
b 19
MUTE
Block number
Frequency (MHz)
Frequency
(hex setting)
Operating mode
Battery status
Programmable
switch function
Audio level
When the frequency step size is set to 25 kHz, the hex number is smaller and
may include a fraction.
Note that the
frequency has
increased by 25
kHz from the upper
example.
494.525
-40 -20 0
b 19
MUTE
1
4
51
Fraction
1/4 = .025 MHz
1/2 = .050 MHz
3/4 = .075 MHz

LECTROSONICS, INC.4
System Setup Procedures
1) Install batteries, select the battery type and turn power on.
2) Select compatibility mode to match the receiver.
3) Connect signal source and adjust input gain for optimum modulation level.
4) Set StepSize and frequency to match receiver. Also see receiver manual
for scanning procedure.
5) Turn on receiver and verify RF and audio signals are present (see
receiver manual).
Battery Installation
The transmitter is powered by two
AA batteries. We recommend using
alkaline, lithium, or rechargeable
batteries for longest life. Standard
zinc-carbon batteries marked
“heavy-duty” or “long-lasting” are not
adequate.
The battery status circuitry compen-
sates for the difference in voltage
drop between alkaline and lithium
batteries 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 using the Battery Timer function available in Lectrosonics Digi-
tal Hybrid Wireless®receivers.
Push outward on the Battery Compartment Door and lift it to open.

www.lectrosonics.com 5
Navigating Menus
The LCD and keypad interface make it easy to browse the menus and make
the selections for the setup the user needs. 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 menu.
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.
Gain
Freq.
ProgSw
Compat
-40 -20 0
Gain
25
Gain
Freq.
ProgSw
SEL
BACK
SEL
BACK
SEL
BACK
Compat SEL
BACK
Step Siz SEL
BACK
Phase SEL
BACK
SEL
BACK
Locked
SEL
BACK
SEL
BACK
BatType
Default
Rf On? SEL
BACK
Freq b 21
80
550.400
Press SEL to
select desired
adjustment step
Use arrow keys
to select desired
frequency
ProgSw Use arrow keys to select
switch function
TalkBk
Power
Mute
(none)
Compat Select from
listing
Use arrow keys to select
compatibility mode
Use arrow keys to select
frequency step size
100 kHz
25 kHz
StepSiz
Use arrow keys to select
audio output polarity
Pos.
Neg.
Phase
Use arrow keys to
lock/unlock keypad
Yes
No
Locked?
Use arrow keys to turn
Rf signal on/off
No
Yes
Rf On?
Use arrow keys to select
battery type
Alk.
Lith.
BatType
Use arrow keys to return
transmitter to default
factory settings
No
Yes
Default
settings
Gain 22 Use arrow keys to
select input gain

LECTROSONICS, INC.6
Powering On in Operating Mode
Press and hold the Power Button for several seconds until a counter on
the LCD progresses from 1 through 3, followed by a display of the model,
firmware version, frequency block and compatibility mode.
Hold
for
Rf On
...3
Band A1
V6.00
LMB
Nu Hybrid
5
494.500
-40 -20 0
1
b 19 When you
release the
button, the
unit will be
operational
with the RF
output turned on and the Main Window displayed. Only the second and third
screens will appear when the programmable function switch is used to turn on
the power.
Powering On in Standby Mode
A brief press of the Power Button , releasing it before the counter has
reached 3, will turn the unit on with the RF output turned off. In this Standby
Mode, the menus can be browsed to make settings and adjustments without
the risk of interfering with other wireless systems nearby.
Hold
for
Rf On
...1
Release
Power
Button
before the
counter
reaches
3 to enter
standby
mode
5
494.500
-40 -20 0
1
b 19
RF
indicator
blinks
After settings and adjustments are made, press the power button again to turn
the unit off.
NOTE: Also see the section entitled Power Menu for the AutoOn
feature.
Powering Off
Powering
O . . .
1
From any screen, power can be turned off by selecting
Pwr Off in the power menu, holding the Power Button
in and waiting for the countdown, or with the program-
mable switch (if it is configured for this function).
If the power button is released, or the top panel switch is
turned back on again before the countdown is completed,
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.

www.lectrosonics.com 7
Power Menu
Pressing the power button when the unit is turned on will display a menu with
several options:
• Resume - returns to the previous mode and screen
• Pwr Off - turns the unit off
• Rf On? - enters a screen to enable the operating or standby modes
• AutoOn? - allows the unit to automatically power back up after a power
failure or when new batteries are installed; works in the operating mode only
• Backlit? - the backlight can be turned on continuously or set to turn off auto-
matically after either 30 seconds or 5 minutes.
• LED Off - turns the LEDs on (Normal) or off (Dark)
• About - indicates latest firmware version.
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 Nu Hybrid compat-
ibility mode.
Compat
Hybrid
Gain
Freq.
ProgSw
Compat
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:
• Mode 3* works with certain non-Lectrosonics models.
• Nu Hybrid works with all Lectrosonics Digital Hybrid receivers. The receiver
must also be set to Hybrid compatibility mode.
• IFB Series works with Lectrosonics IFB R1/R1a analog receivers.
* Contact the factory for details of this mode

LECTROSONICS, INC.8
Selecting Step Size
This menu item allows frequencies to be selected in either 100 kHz or 25 kHz
increments.
Compat
StepSize
Phase
Locked
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.

www.lectrosonics.com 9
Adjusting the Input Gain
The two bicolor Modulation LEDs on the control panel and keypad provide 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 fol-
lowing 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 Powering On in Standby Mode).
2) Navigate to the Gain setup screen.
-40 -20 0
Gain
25
Gain
Freq.
ProgSw
Compat
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 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.10
Selecting Frequency
The setup screen for frequency selection offers several ways to browse the
available frequencies.
Freq.
b 19
494.500
51
Press MENU/
SEL to select
one of four
fields to make
adjustments
Gain
Freq.
ProgSw
Compat
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 band 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.
494.525
-40 -20 0
b 19
MUTE
1
4
51
Freq.
b 19
494.525
511
4
Fraction appears
next to hex code
in 25 kHz mode