LECTROSONICS HMa Wideband Plug-On Transmitter with Digital Hybrid Wireless Technology User Guide
- June 6, 2024
- LECTROSONICS
Table of Contents
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](https://manuals.plus/m/f57d7741d1708d816782ab24be19046df50fafde61885e194f45b70201e1f493.pdf)
HMa Wideband Plug-On Transmitter with Digital Hybrid Wireless Technology
Quick Start Guide
HMa
Wideband Plug-On Transmitter
with Digital Hybrid Wireless® Technology
HMa, HMa-941, HMa/E01, HMa/E02, HMa/EO6, HMa/E07-941, HMa/X
Fill in for your records: Serial Number:
Purchase Date:
Digital Hybrid Wireless® U.S. Patent 7,225,135
This guide is intended to assist with initial setup and operation of your
Lectrosonics product. For a detailed user manual, download the most current
version at: www.lectrosonics.com/manuals
21 June 2021
Controls and Functions
Input Coupler
Modulation LEDs
LCD
UP Arrow
Battery Compartment
Cover
XLR Input Jack PWR LED AUDIO Button FREQ Button
LCD Screen
Backlit for easy viewing in bright or dimly lit conditions.
DOWN Arrow
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
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 of cover.
USB Port
USB Port for firmware updates in the field.
IR Port
IR (infrared) port for fast setup.
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LECTROSONICS, INC.
Battery Installation
The transmitter is powered by two AA batteries (Lithium recommended).
Note: Standard zinc-carbon batteries marked “heavy-duty” or “longlasting” are
not adequate. To install new batteries: 1. Slide open the Battery Cover and
remove any old batteries. 2. Insert the new batteries into the housing. One
battery goes in positive (+) end first, the other negative (-) end first. Look
into the battery compartment to determine which end goes in which side. The
side with the plastic ring is the side which accepts the positive end of the
battery.
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 power up.
3. Slide the Battery Cover until it snaps securely shut.
positive (+) negative ()
terminal
terminal
USB Port
Battery Cover
Battery Compartment
www.lectrosonics.com
IR (Infrared) Port 3
Operating Instructions
Powering On in Operating Mode
- Ensure that good batteries are installed.
- Simultaneously press and hold the AUDIO and FREQ buttons as the timer
counts from 1 to 3 (about 3 seconds).
Powering Off in Operating Mode - Simultaneously press and hold the AUDIO and FREQ buttons while observing that the word OFF and the counter in the LCD.
- When the counter reaches 0, the unit turns off.
Initial Power On Timer Screen
Initial Power Off Timer Screen
Note: If the AUDIO and FREQ buttons are released before the end of the countdown, the unit will not turn off.
Powering On/Off in 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 settings
can be checked or changed, but the unit will not be transmitting to avoid
interfering with other systems in the vicinity.
Standby Screen
Up Button Menu
Hold the UP button wihile powering up the unit. Then press the AUDIO button
repeatedly to scroll through the following settings. Use the UP and DOWN arrow
to select the available options under each setting.
Selecting the Compatibility Mode (Up Button Menu)
CP (Compatibility Mode); press the UP and DOWN arrows to select one of the
following:
Note: RF transmission is prevented while selecting Compatibility Modes. Also,
the HMa exits this screen to the Standby Mode.
· Nu Hybrid – Digital Hybrid receivers
· 3 – (Mode 3) For non-Lectrosonics analog receivers. Contact the the factory
for details.
· IFB – For Lectrosonics IFB receivers.
While in the compatibility mode screen, pressing either the AUDIO or FREQ
button exits to standby mode. To power off from the compatibility mode screen,
press and hold AUDIO and FREQ together.
NOTE: If your Lectrosonics receiver does not have Nu Hybrid mode, set the receiver to Euro Digital Hybrid Wireless® (EU Dig. Hybrid).
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LECTROSONICS, INC.
RF Power Output (Up Button Menu)
Pr (RF Power output) may be selected as:
HMa:
Selectable 100 or 25 mW
HMa/E01:
Selectable 25 or 50 mW
HMa/E02:
10 mW
HMa/E06:
Selectable 50 or 100 mW EIRP
HMa-941:
Selectable 50 or 100 mW
HMa/E07-941: Selectable 50 or 100 mW
Selecting the Audio Polarity (Up Button Menu)
The input to the transmitter can be set for Pin 2 XLR Pin 2 as positive (+) or
negative ()
(+) to match the polarity of other mics being used.
Pin 2 ()
Selecting Step Size Mode (Up Button Menu) The frequency increments can be set
at either 25 kHz or 100 kHz.
www.lectrosonics.com
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DOWN Button Menu
Hold the DOWN button while powering up the unit. Then press the AUDIO button
repeatedly to scroll through the following settings. Use the UP and DOWN arrow
to select the available options under each setting.
Enable Remote Control
rc on and rc OFF enable and disable remote control functions. See page 7.
Power Back On (DOWN Button Menu)
PbAc (Power back on after power loss) allows the unit to either (1) turn back
on after power loss or (0) remain off.
LCD Backlight Setting (DOWN Button Menu)
The LCD backlight can be set to stay on continuously or turn off after either
5 minutes or 30 seconds .
Band/Legacy Block 606 Setting(Down Button Menu)
Allows access to either the full C1 bnad or only a portion of Block 606. When
using a a Block 606 receiver such as an SRb/E01-606 or a UCR411a-606, the
pilot tones must match for the receiver to recognize the signal from the
tranmsitter.
NOTE: This function is only available for the HMA/E01-C1.
Audio Screen Menu
The Audio Screen is used to adjust input gain and low frequency roll-off, and to turn phantom power on and off. Repeatedly pressing the AUDIO button selects the setting. Press and hold the AUDIO button and use the UP and DOWN arrows to adjust the value.
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LECTROSONICS, INC.
Adjusting the Input Gain (Audio Screen Menu)
The control panel Modulation LEDs indicate the modulation level and limiter
activity. This gain adjustment matches the transmitter gain with the
microphone’s output level, the user’s voice level and the position of the
microphone. Once set, the transmitter’s audio level setting should not be used
to control the volume of your sound system or recorder levels. The audio input
level can be set with the unit in Standby Mode or while powered up in 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
Note: Voice levels vary significantly between different people. 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.
- With the HMa powered off, insert the microphone plug into the XLR Input Jack, aligning the pins and ensuring that the connector locks.
- Place the transmitter in the Standby Mode, or if the unit is to be powered up and adjusted, mute the main sound system prior to powering up the transmitter.
- Position the microphone in the location where it will be used in actual operation.
- Observe the audio level LEDs while speaking or singing into the microphone at the same voice level that will be used during use. While holding the AUDIO button, press the UP or DOWN arrows until both the -20 and -10 LEDs glow green, with the -20 LED flickering red on louder peaks. This will optimize the signal to noise ratio of the system with full modulation and adequate headroom to prevent overload and audible compression of signal 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 turn the
transmitter off, then power it up again in normal operation so the RF output
will be on. Then the other components in the sound or recording system can be
adjusted.
Adjusting the Low Frequency Roll-Off (Audio Screen Menu)
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.
www.lectrosonics.com
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Selecting the Phantom Power Supply (Audio Screen Menu)
The transmitter input jack can provide phantom power for the attached
microphone if needed, with voltages at 5, 15, or 48. Phantom power will
consume a slight amount of battery power, so it can also be turned off. With
the transmitter powered on and in the normal or standby mode, press and hold
the audio button and observe the LCD. Release the button and press and hold it
again. Repeat this process until the display indicates the PH.
Once you get to the PH setting, keep the AUDIO button pressed, then use the UP
and DOWN arrow keys to cycle through the available settings (off, 5, 15, 48
volts) until the desired setting is displayed.
When you release the AUDIO button, the setting will be stored to the value you
selected.
Remote Control Functions (dweedle tones)
Settings can be adjusted with the LectroRM phone app. LectroRM is a mobile
application for iOS and Android operating systems. Its purpose is to remotely
control Lectrosonics transmitters. The available functions are:
· Input Gain · Lock/Unlock · Tx power output · Frequency · LEDs on/off · Audio
LF roll-off
The app was released by New Endian, LLC in September 2011. The app is
available for download and sells for $20 on the Apple App Store and Google
Play Store.
Setting Transmitter Operating Frequency
- If the LCD is displaying something other than the Frequency Screen, press the FREQ button on the Control Panel 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 that corresponds to
legacy Lectrosonics products that used two 16-position switches to set the
frequency.
2) While holding the FREQ button, use the UP or DOWN arrow buttons to move the
operating frequency up or down.
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.
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LECTROSONICS, INC.
Set Up in 100 kHz Mode
Frequency displayed in MHz
The operating frequency can be displayed either in MHz or as a two-digit
hexadecimal number. The example of the two-digit display shown here indicates
CH (channel) and 2C as the frequency.
The frequency can be set with the unit in standby mode or when powered up for
normal operation.
Frequency displayed as two-digit hexadecimal
number
Set Up in 25kHz Mode
Frequency expressed in MHz
The hexadecimal display in the 25 kHz mode will appear with a decimal suffix to indicate the 25 kHz steps.
Frequency in hex
Standard frequency block (20)
Frequency in hex
code (F6)
Offset in MHz (.25)
Lock/Unlock Screen
Simultaneously pressing and holding both the UP and DOWN arrow buttons during
normal operation starts the Lock timer. The timer starts at three and counts
down to zero. When the timer reaches zero, the keypad controls are locked.
The LCD will display the locked condition as long as the arrow buttons are
held, then revert back
to the previous screen when either button is released.
With the controls locked, the AUDIO and FREQ buttons can still be used to
display current settings. Any attempt to change a setting by pressing either
the UP or DOWN arrow button will result in an on-screen Loc reminder that the
controls are locked. Remove the batteries to unlock the control panel.
Important: Once the transmitter is locked, it cannot be unlocked or powered
off using the buttons. The only way to unlock a locked transmitter is to
remove the batteries.
www.lectrosonics.com
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Special Purpose Barrel Adapters
Mic adapter for Earthworks M30 microphone with HM, HMa and UH400a/TM
transmitters.
This polarity reversing adapter may be needed to correct for asymmetrical
current draw in some P48 powered condenser microphones, including older
Neumann 100 Series, Rode NTG3 and others. If you microphone does not power on
correctly when used with these transmitters, insert the adapter between the
transmitter and microphone.
P/N 21750 Polarity Reversing
Barrel Adapter
MCA-M30
Earthworks M30 Barrel Adapter
This adapter may be needed if you are experiencing noise or distortion with
measurement microphones, particularly the Earthworks M30. The adapter has a
common mode choke for suppressing RF noise. If your microphone signal exhibits
the problems listed above when connected to a UH400, HM or HMa transmitter,
insert the adapter between the microphone and the transmitter.
Insert the adapter between the transmitter and microphone to alleviate the
problems listed above.
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LECTROSONICS, INC.
www.lectrosonics.com
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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.
®
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