Lectrosonics HM/E01 User manual

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Guide
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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
HM/E01 Plug-On
Transmitter
15 September 2017
Digital Hybrid Wireless®
U.S. Patent 7,225,135

LECTROSONICS, INC.2
The HM Digital Hybrid®UHF plug-on transmitter features a DSP-based
design that allows the transmitter to operate in its native Digital Hybrid Wire-
less®mode, Lectrosonics 200 Series, 100 Series, IFB product groups, plus
three modes for compatibility with analog receivers from other manufacturers.
A unique multi-voltage phantom power feature allows the transmitter to be
used with virtually any microphone, including high-current condenser types,
expanding its usefulness in high-end applications such as motion picture
production.
The transmitter provides up to 1024 frequencies selected with the membrane
switch keypad. The input amplifier uses an ultra low noise op-amp for quiet
operation. It is gain controlled with a wide range dual envelope limiter, provid-
ing over 30 dB of headroom above full modulation. A 24-bit A-D converter
digitizes the audio, then filters supersonic noise above 21 kHz. The resulting
signal is encoded with a proprietary algorithm to produce an analog data sig-
nal for RF transmission. The underlying RF link is an optimized FM system
with +/-75 kHz wide deviation for a high signal to noise ratio.
The antenna is formed between the lower housing of the transmitter and the
attached system. It functions as a dipole radiator when attached to a hand-
held microphone and somewhat like a ground plane antenna when con-
nected into a mixer. The conical shaped collar on the input coupler is made
of DuPontTM Delrin®to improve the ERP of the antenna in the uppermost
frequency blocks.
Operating Frequencies (MHz):
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 - 607.900 / 614.100 - 614.300 MHz
Block 24 614.400 - 639.900 MHz
Block 25 640.000 - 665.500 MHz
Block 26 665.600 - 691.100 MHz
RF Power output: 100 mW (nominal)
HM/E01 Plug-On Transmitter

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LCD Screen
Backlit for easy viewing in bright or dimly lit conditions.
Pwr (power) LED
Indicates power status and battery strength.
XLR Input Jack
Standard 3-pin Switchcraft XLR type. Coupler is spring-loaded to maintain a
snug fit and to prevent noise.
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 view and adjust the audio gain setting (0 dB to 44 dB).
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 view and select parameters and values during setup and operation.
Battery Compartment Cover
Hinged to housing to prevent loss.
Controls and Functions Battery
Compartment
Cover
XLR Input
Jack
AUDIO Button
LCD
Input
Coupler
FREQ Button
Modulation
LEDs
PWR LED
UP Arrow
DOWN Arrow

LECTROSONICS, INC.4
The HM transmitter is powered by two AA batteries. We recommend using
lithium batteries for longest life. Lithium batteries provide approximately 9
hours of operation at room temperature, without phantom power enabled.
The battery status circuitry is designed for the voltage drop over the life of
lithium batteries.
To install new batteries:
1) Slide the battery compartment door outward and swing it open.
2) Insert the new batteries into the housing. One battery goes in positive (+)
end first, the other negative (–) end first. Look into the battery compart-
ment to determine which end goes in which side. The side with the plastic
ring and smaller round opening is the side which must contact the (+) posi-
tive end of the battery. The other battery is inserted in the opposite polarity.
Note: It is possible to install the batteries backward and close the
battery door, but the batteries will not make contact and the unit will not
work.
3) Close the Battery Cover and slide it inward until it snaps shut.
Battery Installation
Battery
Compartment
Battery
Cover
positive (+)
terminal
negative (–)
terminal

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Operating Instructions
Power On
1) Ensure that good batteries are installed.
2) Simultaneously press and hold the AUDIO and
FREQ buttons as the timer counts from 1 to 3
(about 3 seconds).
Power Off
1) Simultaneously press and hold the AUDIO and
FREQ buttons while observing that the word
OFF and the counter in the LCD.
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. Adjustments and set-
tings can be checked or changed, but the unit will
not be transmitting to avoid interfering with other systems in the vicinity.
Selecting the Compatibility Mode
400 Series or Digital
Hybrid Wireless®
Compatibility Mode
Hold the UP arrow in, then press the AUDIO and
FREQ buttons at the same time. Press the AUDIO
button repeatedly until the compatibility mode
screen appears as shown here. Press the UP and
DOWN arrows to select the desired mode.
• 100 Series mode: CP 100
• 200 Series mode: CP 200
• Mode 3 (Contact factory for details): CP 3
• 400 Series mode: CP 400
• IFB Series mode: CP IFB
• Mode 6 (Contact factory for details): CP 6
Selecting the Audio Polarity
Pin 2
(+)
Pin 2
(–)
The input to the transmitter can be set for
XLR Pin 2 as positive (+) or negative (–) to
match the polarity of other mics being used.
Hold the UP arrow in, then press the AUDIO
and FREQ buttons at the same time. Press
the UP and DOWN arrows to select the
desired mode.
Initial Power On
Timer Screen
Initial Power Off
Timer Screen
Standby Screen

LECTROSONICS, INC.6
Selecting the Phantom Power and Low Freq Rolloff
Phantom power can
be set at 5, 15 or 48
volts or turned off
Low freq rolloff can
be set for -3dB at
35, 50 or 70 Hz
Briefly press the AUDIO and
FREQ buttons at the same
time to enter the Standby
Mode. Then press and hold
the AUDIO button to enter the
setup screen. When the
button is released and
pressed again, the next screen will appear. Hold the button in when the
correct screen appears, then use the UP and DOWN buttons to select the
desired value.
LCD Backlight Setting
The LCD backlight can be set to stay on continuously or turn off after either
5 minutes or 30 seconds. Hold the UP arrow button in and power up the unit.
Press the AUDIO button repeatedly until the bL (backlight) screen appears,
then use the UP and DOWN arrow buttons to select the desired behavior.
Press AUDIO and FREQ at the same time to save the setting.
Selecting Step Size mode
Hold the UP arrow in while powering up the unit to enter the setup screen.
Press the AUDIO button repeatedly to step through the setup items to reach
the Step Size Mode screen. Use the UP or DOWN arrow button to select the
desired setting.

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Set Up in 100 kHz Mode
The Frequency Screen displays the operating
frequency in MHz or as a two-digit hexadecimal
number that corresponds to the equivalent
Lectrosonics Frequency Switch Setting. The
example of the two-digit display shown here
indicates CH (channel) and 2C as the frequen-
cy. Repeatedly pressing the FREQ button
toggles between the two displays. Press and
hold the FREQ button and use the Up and
Down arrows to select the frequency.
Set Up in 25kHz Mode
The hexidecimal display in the 25 kHz mode will appear with a decimal suffix
to indicate the 25 kHz steps.
644.400 MHz
644.425 MHz
644.450 MHz
644.475 MHz
Setting Transmitter Operating Frequency
Frequency displayed as
two-digit hexadecimal
number
Frequency displayed
in MHz
The operating frequency of the HM 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 HM
transmitter:
1) Press the FREQ button to enter this screen.
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 scrolling
through the frequencies.
Note: The operating frequency displayed on the LCD wraps as it
reaches the upper or lower end of its range.

LECTROSONICS, INC.8
Attaching a Microphone and Adjusting the Gain
TO AT TA CH
TO REMOVE
Hold the
transmitter
case with the
microphone
pointed
upward.
Rotate the
collar in the
direction
shown.
Pull on mic to ensure it is locked.
Press firmly, listen for click.
Depress collar fully.
Click!
To attach the mic, insert the
HM into the XLR connector.
Press the connector into the
microphone until the tapered
collar retracts and listen for a
“click” that indicates the
connector has locked onto the
microphone. Gently pull on the
mic to ensure proper locking
has occurred.
When removing the microphone from the HM, hold the transmitter in one
hand and twist the collar with the other hand until the microphone disengages.
Do not pull on the microphone as it may prevent the connector from releasing.
The front panel Modulation LEDs indicate limiter
activity. (See chart below.) Once set, the transmit-
ter’s audio level setting should not be used to
control the volume of your sound system or recorder levels. This gain adjust-
ment 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.
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
Different voices will usually require different
gain settings, so check this adjustment for
each person using the system. If several
different people will be using the transmit-
ter, set it for the loudest voice.
1) Set the required phantom power mode
before attaching the microphone.
2) Briefly press the AUDIO and FREQ buttons at the same time, then press
and hold the AUDIO button to enter the setup screen.
3) Use the microphone in the manner in which it will be actually used.
4) Observe the HM audio level LEDs while speaking or singing into the micro-
phone 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 flick-
ering 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.

www.lectrosonics.com 9
Using the Polarity-Reversing
Barrel Adapter with
Measurement Microphones
A polarity adapter may be needed if
you experience noise, low output or
distortion with meaasurement micro-
phones such as Earthworks M30 or
Rode NTG3.
Insert the barrel adapter provided with
the HM transmitter between the micro-
phone and transmitter as shown.
NOTE: This adapter is included
with the TM400 test and
measurement system, but is
available as a separate item
with the HM transmitter and
other wireless equipment.
Important: The only way to unlock a locked transmitter is to remove the
battery. It cannot be unlocked or powered off using the buttons. The unit will
always power up in “unlocked” mode.
Measurement
microphone
P/N 21750
barrel adapter
Locking or Unlocking the Control Panel
The Lock mode protects the transmitter from
accidental changes to its settings.
1) Ensure the HM 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.

LECTROSONICS, INC.10