MTB40 User Manual
MTB40 User Manual
Wideband Plug-on
Transmitter
SN: ________________
Rev.02 (rif. FW 1.11.0E)
Date: 10 September 2013
MTB40 User Manual
Rev.02
INTRODUCTION
MTB40 is an extremely small and light plug-on transmitter especially designed for professional
wireless microphone applications.
Very easy and quick to use thanks to OLED display, MTB40 benefit also of the latest Wisycom
RF technology along with an enhanced robustness against noise and inter-modulation.
FEATURES

Up to 232 MHz bandwidth in 470/952 MHz range

Enhanced robustness against self-interferences and antenna performances thru a
proprietary “intermodulation cancellation” circuit

Miniature design with flexible pcb (no connectors) for extended reliability

User selectable compander systems
ENR (noise optimized)
ENC (voice optimized)

Battery: 2 AA Alkaline or rechargeable NiMH

Infrared interface for management and firmware update

Audio input circuitry with high linearity audio transformer
SAFETY INSTRUCTION
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Read this safety instruction and the manual first
Follow all instructions and information.
Do not lose this manual.
Do not use this apparatus under the rain or near the water.
Do not install the apparatus near heaters or in hot environments, do not use outside the
operating temperature range.
Do not open the apparatus, only qualified service technician are enabled to operate on it.
The apparatus needs servicing when it is not properly working or is damaged by liquids,
moisture or other objects are fallen in the apparatus.
Use only accessories or replacement parts authorized or specified by the manufacturer.
Clean the apparatus only with dry cloths, do not use liquids.
Report the serial number and the purchasing date in front of the manual. It is needed to
have proper replacement parts or accessories from the manufacturer.
When replacement parts are needed, use only replacement parts authorized from the
manufacturer. Substitution with not authorized parts could result in electric shock,
hazards or fire.
Keep attention on all the labels with warnings or hazards on the apparatus.
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LED INDICATION
The front led is a bi-color indicator (red & green) which shows the following status of the
transmitter:
-
Wireless transmission status: green when RF transmission power is on.
Battery status: green steady, slowly blinking (< 25%), quickly blinking (<12%).
Modulation peek (if activated): red.
BATTERIES
MTB40 is working with 2 AA alkaline or NiMH batteries (select correct type on setup controls).
Battery status can be checked on internal OLED display or looking to LED status on front.
BATTERY SUBSTITUTION
 Open transmitter cover and insert batteries.
Attention: always replace both the batteries
OPERATING CONTROL
❶
❷
❸
❹
❺
Microphone input, XLR-3F socket (balanced)
OLED display
OFF button
ON/SEL button
DOWN button
❻
UP button
❼ LED indicator
❽ CH/GAIN button
❾ Battery compartment cover
❼
❶
❽
❷
❸
❹
❾
❺
❻
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POWER UP/DOWN
Buttons
Mode
Status display
OFF
Operating menu
Setting mode
Device off
ON/SEL
Status display
Setting mode
To…
- power off the device
- power off the RF transmission
- exit from the operating menu
Cancel the entry and return to the standard
display
- power on the device
- power on the RF transmission
- enter on the operating menu
- store the setting a parameter in the menu
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DISPLAY MENU
Setup menu are accessed in sequence:
STATUS
Current:
PRESET
Load from:
FACTORY/USER/PRESET1/2/3/4/5/6/7/8
Save to:
USER
CH
00-59
GR
00-39
TUNING
Freq
1: 470.000÷640.000
2: 566.000÷798.000
Name
AF In Gain
-40÷40 dsB (1dB step)
AUDIO
HPass Filter
MENU
MIC
RF Power
NOISE RED
Phantom (48V)
ON/OFF
Phase
0/180
Data (TSQ)
ON/OFF
Power
Off/On
Level
10/50mW
Autolock
Off/On
ENC/ENR
Led Light
OTHERS
0-16
Led Mode
None/ModPeak
Battery
Alkalline/NiMH
FW ver.
INFO
BAND
IRDA
SN
Lock
flat/60/80/120/170/250/400Hz
111 0D
1: 470.000÷640.000
2: 566.000÷798.000
S1532738
Preset parameters
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MTB40 User Manual
Using <
mode:
Rev.02
> selector all menus can be accessed in sequence, push <ON/SEL> to enter edit
<
> to setup field
<ON/SEL> again to confirm changes and exit.
exit without confirmation if
-no button is pressed after a few seconds (4sec) time out
or
-OFF button is pressed
<START UP> menu
These menus are displayed during power up for few seconds.
This menu gives indication on product:
- product id (MTB40),
- a number which identify the working band
1
470-640
2
566-798
- a number which identify the hardware version
- the firmware release (111.0E),
- the band in extended format and
- the serial number.
Keep selector pushed to hold this menu!
<STATUS> menu
This is the first menu displayed after power up.
Major info are displayed:
- Current channel/group or the receiver name if the MTB40 is
already synchronized with a receiver
- Current frequency (i.e. 566.000 MHz)
- Mic gain (i.e. AF: -04 dB) and high pass filter (i.e. HP: Flat Hz)
- “RF 50” or “RF OFF” on top right if RF transmission is ON or
OFF
- Batteries charger (a bar with 7 level)
<PRESET> menu
This menu can be entered by pushing
.
MTB40 can recall configuration presets. “FACTORY” recall the
Wisycom factory configuration. “USER” recall the user
configuration (the transmitter configuration is copied into the
USER using the “save to” submenu). All the parameters of
“USER” menus are not locked by default, thus this is quick way
to unlock features!
The other 8 configuration presets are user programmable thru the infrared and the PC
interface (using the programmer UPK 300 or the receiver MRK950/MRK960 thru USB
connection).
All parameters can be “left unchanged”, “changed” or “changed and lock”, allowing a
very flexible way to pre-program MTB40 configuration.
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MTB40 User Manual
<TUNING> menu
This menu can be entered by pushing
Rev.02
.
In this menu channel/group and frequencies can be setup.
Sync group is a quick self-settable channel synchronized by
receiver.
Use the selector (
) to change values and <SEL> to confirm.
<AUDIO> menu
This menu can be entered by pushing
.
“AF In Gain” to setup the audio input sensitivity:
To help proper audio gain setting, an audio bar is supplied
(with maximum peak indicator) indicating the headroom to
audio peak (0 dB , nominal deviation 40KHz).
Set the gain, with the maximum input signal,
avoiding the peak on the audio bar.
AF gain is shown with 2 different unit off
measurements: dB or dBµ peak, setting it with
IR PROGRAMMER (see the picture on page 11 and the
description on CURRENT SETTINGS PANEL).
“HPass Filter” applies different audio High Pass filter:
Flat / 60Hz / 120Hz / 170Hz / 250Hz / 400Hz.
Use the selector (
) to change values and <SEL> to confirm.
<MIC> menu
This menu can be entered by pushing
.
In “MIC” menu is possible to activate or not the phantom supply.
Additional field to setup:
- Phase: is audio phase can be 0/180 deg.
- Data (TSQ): select ON/OFF to activate or not the tone
squelch.
Use the selector (
) to change values and <SEL> to confirm.
<RF POWER> menu
This menu can be entered by pushing
.
RF power can be setup to ON/OFF to activate or not the radio
transmission.
Additional field to setup:
- Level: It is possible to setup the RF power at 50mW or
10mW.
- Autolock: select ON for lock the transmitter after the auto
turn off of the display
Use the selector (
) to change values and <SEL> to confirm.
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MTB40 User Manual
<NOISE RED> menu
This menu can be entered by pushing
Rev.02
.
MTB40 supports 2 different type of “Companding systems”
ENR-Wisy: designed for maximum noise reduction
ENC-Wisy: designed for maximum audio fidelity (use this in case
of special vocal application or to remote instruments)
<OTHERS> menu
This menu can be entered by pushing
.
In “Led Light” the brightness of the front led ❼ can be set from
0 to 16 level.
It’s also possible change the mode of function of the LED (in
“LED Mode”) selecting Modpeak (become RED when audio get
close to saturation) or None (never become RED).
Battery type can be setup in Alkaline or NiMH.
Use the selector (
) to change values and <SEL> to confirm.
<IRDA> menu
This menu can be entered by pushing
.
Thanks this menu the transmitter can be connected to IRDA for
setup or firmware upgrades.
NOTE: while in this menu display is not automatically turned off.
<LOCK> menu
This menu can be entered by pushing
.
Long pressing (2 sec.) selector button (SEL) it locks MTB40 in
transmission mode.
To unlock, long pressing (2 sec.) selector button again.
<BOOTLOAD> menu
This menu can be entered pushing at the same time both up and down selector and then
pushing the ON button (
+
& ON).
Device is forced in bootloader mode to allow FIRMWARE
UPDATE.
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<CH/GAIN> Quick menu
Push CH/GAIN button (❽) to change quickly the values of CH or GAIN. Use the selector (
)
to change the values of CH or GAIN and <SEL> to confirm. These menus display larger characters
to easily operate channel/gain settings.
Use this menu to change the value of “AF In Gain” parameter in
AUDIO menu.
To help proper audio gain setting, there is also the audio bar of
AUDIO menu.
These quick menu allow to change only the channel of
transmission (not the group or the frequency value).
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WISYCOM IR PROGRAMMER (VER. 1.3.2.0 AND ABOVE)
Wisycom IR Programmer allows reading, modifying and updating the MTB40 device
configuration.
It is necessary to:
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install Wisycom IR Programmer (version 1.3.2.0 or above)
WARNING: If it is the first installation and Wisycom USB driver has not already installed
in the PC, install the USB driver (run C:\Program Files (x86)\Wisycom\MTP&MTH
Infrared Programmer (TX)\Drivers\ DriverInstaller.exe)
connected the programmer UPK300 or the receiver MRK950/MRK960 to the PC thru
USB connection
run the program
enable the IRDA communication on the transmitter
NOTE: Wisycom IR Programmer does not work whit MRK950/MRK960 if it is connected
to the PC using an Ethernet cable.
The Wisycom IR Programmer’s window is divided in 4 parts (see Fig. 5):
❶Interface and Device panel contains all the major information of the connected device
❷Current
Settings panel shows the current configuration. Thanks the PRESET panel, a
previous saved configuration can be chosen and loaded like current setting.
❸Tuning Frequencies panel allows handling Groups, Channels and Frequencies
❹Presets panel allows reading, changing and saving different configurations
❶
❷
❸
❹
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10 different configurations are available:
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FACTORY configuration is a locked configuration: no parameter can be changed.
USER configuration is the only configuration that can be saved using the OLED display
(see <PRESET> menu). Note: It is not possible to change the name of this
configuration.
Other 8 configurations where the user can change both the name and the values of all
parameters.
INTERFACE AND DEVICE PANEL
At the beginning, the program detects active IR devices and shows them on the Interface panel.
The user has to select the device and push <connect> button in order to open the
communication with the IR device. A picture on the top in the Interface panel help the user in
this selection showing the type of devices detected. During this process the “IR activity” led
blinks to indicate that the program wait connection’s answer from the IR device.
A successful connection is signaled with the “interface connection” green led, while a failed
connection is signaled with the “communication error” led.
Once a supported device is found, the software automatically reads all the data related to the
remote configuration, as well as the frequencies that are pre-programmed.
Firstly, in order to avoid unwanted operation, no parameters can be changes and the EDIT
button, presents on the bottom of Device panel, is yellow and set to LOCKED state. Pushing the
EDIT button, it becomes grey and sets to UNLOCKED state to indicate that the configurations can
be modified.
CURRENT SETTINGS PANEL
In the Current Settings panel the user can
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with Preset panel → load one of the 10 available configurations
with other panels → modify all the configuration’s parameters (the same that are changeable
in the OLED display). Each parameter can be locked clicking the related lock button, so the set
value cannot be changed next using the OLED display. In the audio panel it’s also possible to
change the unit of measurements of the gain choosing between dB (gain in dB of MTB40
amplifiers) or in dBµ peak.
ATTENTION: All the modifies applied to the Current Settings panel are instantaneous: they are
applied directly to the device and save in its memory but no saved in the preset configuration.
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TUNING FREQUENCIES PANEL
In Tuning Frequencies panel, the user can select a frequencies group (0÷39) and for each one
execute the following operations:
-
modify the Group’s Name
lock and/or hidden the group
for each channel (0 ÷59) of the selected group: change the frequency value and the
related status (locked/hidden) (in the center grid frequency)
The SAVE button, at the top of the
panel, save the changes of the group
selected (name group, lock/hidden
group).
To change a frequency
value for a specific
channel: double click
on the grid frequency
panel (row=channel’s
number), insert the
new frequency value
and press OK button.
To lock/hide a specific
channel, double click on
the grid frequency panel.
NOTE: keeping pressed the CTRL button on the keyboard and clicking the wanted channel/group
shown on the frequencies grid, the tuning process is executed. It is equivalent to configure the
Tuning in the Current Settings panel but it is easier. The device is re-tuned immediately, so be
sure that the RF power is turned off while changing frequencies with other RF systems in use
around you!
If the currently tuned channel is on the same group that is listed on the grid, the background
color of the related cell (channel) on the grid becomes yellow.
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Using the LOAD/SAVE button, at the bottom of the panel, it is possible to load/save the
frequencies for the selected group from/to a .wdf file. To save the frequencies of all the groups
click to the related button above. The legacy option save the channels without the hidden/lock
info.
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PRESETS PANEL
The Preset panel allows to manage all the 10s available configurations.
For each configuration, it is possible to set the name and all the parameters value except for
FACTORY and USER configurations (see table below).
PRESETS:
NAME*
LOCK/DON’T CARE
PARAMETERS
VALUE
FACTORY
USER
√
OTHERS
√
√
√
√=change is allowed
* Be careful to write a meaningful name for the preset because the name will appear on the
settings list of the device menu! Please, avoid empty names.
If a parameter is “locked”, it cannot be modified by device menu (using OLED display), while if
“don’t care” propriety is active, when the user load the configuration, the parameter’s value
does not changed.
ATTENTION: Changes are applied only after a “save” action.
NOTE: “a trick” In case of the user have a locked parameter and he is in great need for modify
it, he can save the configuration to USER configuration by OLED (see PRESET menu) and then
load the USER configuration (in this way all the parameters have the lock propriety disable and
the user can modify all the parameters).
FILE MENU
Using a file menu at the top left of
the panel it is possible to load/save
all the configuration values of the
device to/from a .wcf file (Wisycom
Configuration File).
Save a .wcf file
With an infrared device correctly connected, select File->Save User Configuration and select
the destination file.
Load a .wcf file
To load a user configuration select File->Load User Configuration and select a previously saved
data file; a form will be shown, where it is possible to select which data has to be restored and
which skipped. This allow the user to load a particular configuration while keeping other data.
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TECHNICAL SPECIFICATIONS
Switchable
channels
2400 allocated by 40 groups of 60 channels (in specific frequency range), quickly
selectable with dedicated buttons
Switching
window
Up to 232 MHz, depending on band (see below code table)
Frequencies
Quartz PLL frequency synthesizer circuit (25 kHz step)
Frequency
stability
▪ ± 2,5 pap (in the rated temperature range)
▪ ± 2.5 kHz (in the rated temperature range)
Temp. range
-10 ÷ +55 °C
Max RF power
▪ 50 mW (ERP) when high power selected
▪ 10 mW (ERP) when low power selected
< 2 nW
Spurious
emissions
Modulation
wideband FM, with 50 µs pre-emphasis
Nominal
deviation
±40 kHz (Peak deviation = ±56 kHz)
Telemetry
feature
MTB40 transmits also a digitally modulated sub-carrier, suitable for:
AF input
connector
XLR-3F (transformer isolated) with 48V phantom power
AF input level
80 dB adjustable range from -60 dBu (775 uV) to 26 dBu (15.5 V) at peak deviation (1
kHz), adjustable in 1 dB steps
+26 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level
Max. input level
▪tone-squelch operating
▪ remote battery monitoring
▪ optional PTT (Push to talk) operation
Noise-Reduction ENR (Wisycom Extended-NR), with independent Attack- and Recovery-time, noise
optimized
ENC (Wisycom Extended-NC), with independent Attack- and Recovery-time, voice
optimized & with reduced pre-emphasis
▪ 45 Hz ÷ 21 KHz (3dB)
AF bandwidth
▪ 55 Hz ÷ 20 KHz (1dB)
< 0.3 % (0.15 % typ.)
Distortion
Signal-to-noise
ratio
▪ typ. 115 dB (A)rms with 40 kHz deviation
▪ typ. 121 dB (A)rms with 56 kHz deviation
Display
High contrast OLED (Organic light-emitting diode) bicolor display (96 x 36 pixels)
8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and “empty
bar” quickly blinking (12% remaining)
2 AA size batteries (Alkaline, rechargeable NiMH) – Phantom power to MIC (max 4mA)
Power supply
Note: MTB40 transmitter complies with ETS 300 422
OPTION CODE MTB40-X :
▪ FREQUENCY RANGE (-X)
1 470-640 MHz
2 566-798 MHz
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Mechanical Drawing
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MTB40 User Manual
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DECLARATION OF CONFORMITY
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ENVIRONMENTAL INFORMATION
Applicable in the European Union and other European countries with separate collection
systems
Disposal of Old Electrical & Electronic Equipment (2002/96/EC)
This symbol indicates that this product shall not be treated as household waste.
Instead, it shall be handed over to the appropriate collection point for the
recycling of electrical and electronic equipment. The recycling of material will
help to conserve natural resources.
Disposal of waste batteries (2006/66/EC)
This product may contain batteries. If so, this symbol on the batteries means
that they shall not be disposed with other household waste. Instead, it shall be
handed over to the appropriate collection point for the recycling of batteries.
ITALY ONLY
Obblighi di informazione agli utilizzatori
ai sensi dell’art. 13 del Decreto Legislativo 25 luglio 2005, n. 151 “Attuazione delle Direttive 2002/95/CE,
2002/96/CE e 2003/108/CE, relative alla riduzione dell’uso di sostanze pericolose nelle apparecchiature
elettriche ed elettroniche, nonché allo smaltimento dei rifiuti”
Smaltimento di apparecchiature elettriche ed elettroniche di tipo professionale
Il simbolo del cassonetto barrato riportato sull’apparecchiatura o sulla sua confezione
indica che il prodotto alla fine della propria vita utile deve essere raccolto separatamente
dagli altri rifiuti.
La raccolta differenziata della presente apparecchiatura giunta a fine vita è organizzata e
gestita dal produttore. L’utente che vorrà disfarsi della presente apparecchiatura dovrà
quindi contattare il produttore e seguire il sistema che questo ha adottato per consentire
la raccolta separata dell’apparecchiatura giunta a fine vita.
L’adeguata raccolta differenziata per l’avvio successivo dell’apparecchiatura dismessa al riciclaggio, al
trattamento e allo smaltimento ambientalmente compatibile contribuisce ad evitare possibili effetti
negativi sull’ambiente e sulla salute e favorisce il reimpiego e/o riciclo dei materiali di cui è composta
l’apparecchiatura.
Lo smaltimento abusivo del prodotto da parte del detentore comporta l’applicazione delle sanzioni amministrative previste dalla normativa vigente.
Smaltimento batterie usate
Questo prodotto può contenere batterie. Questo simbolo apposto sulle batterie significa
che non possono essere smaltite insieme a normali rifiuti domestici, bensì devono essere
depositate negli appositi punti di raccolta delle batterie.
Iscrizione al Registro A.E.E. n. IT09100000006319
.
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19
WISYCOM S.r.l.
Via Spin 156  I-36060 Romano d’Ezzelino  Italy
Tel. +39 -0424 -382605  Fax +39 - 0424 - 382733
www.wisycom.com  e-mail: [email protected]
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