WisyCom MTB40S User manual

MTB40S User Manual
Wideband Plug-on
Transmitter
SN: ________________
Rev.10 (rif. FW 1.30.0P)
Date: 22 May 2019

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INTRODUCTION
MTB40S is an extremely small and light plug-on transmitter designed for professional audio
applications.
Very easy and quick to use thanks to OLED display, MTB40S 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 470/798 MHz range (other on request)
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 designed for maximum noise reduction
- ENC designed for maximum audio fidelity
Input dynamic extension with an integrated HW limiter (30 dB above peak)
P48 phantom power for condenser microphones
New white OLED display (128 x 32 pixels)
New XLR-3F connector with locking collar to ensuring an extremely tight noiseless fit!
Infrared interface for management and firmware update
Audio input circuitry with high linearity audio transformer
Battery: 2 AA Alkaline, rechargeable NiMH or Lithium
SAFETY INSTRUCTION
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.
Wisycom declines all responsibility for damages to things or people caused by not following the
instructions contained in this document
MTB40S transmitter is intended for use as plug on transmitter. In case of usage near human
body the user shall respect the minimum distance of 50 mm between user and the plug-on with
MTB40S while operating in order to ensure a safe exposure to RF energy.

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LED INDICATION
The front led is a RGB indicator (red, green, blue) which shows the following status of the
transmitter:
- Wireless transmission status: green when RF transmission power is on (on power on the
device, this LED is red and become green when the RF transmission power is on).
- Battery status: green steady, slowly blinking (< 25%), quickly blinking (<12%).
- Modulation peek (if activated): red.
- Limiter in action (if activated): blue.
BATTERIES
MTB40S is working with 2 AA alkaline, NiMH or Lithium 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
Shotgun Microphone input, XLR-3F socket (balanced)
❷
OLED display
❸
OFF button
❹
ON/SEL button
❺
DOWN button
❻
UP button
❼
LED indicator
❽
CH/GAIN button
❾
Battery compartment cover
❶
❸
❹
❺
❻
❼
❽
❾
❷

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WARNING:
for a correct insertion of the microphone/boom, screw the ferrule
up to the end of the threading and then connect the mic/boom.
POWER UP/DOWN
Buttons
Mode
To…
OFF
Status display
- power off the device
- power off the RF transmission
- exit from the operating menu
Operating menu
Cancel the entry and return to the standard
display
Setting mode
ON/SEL
Device off
- power on the device
- power on the RF transmission
Status display
- enter on the operating menu
Setting mode
- store the setting a parameter in the menu

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DISPLAY MENU
Setup menu are accessed in sequence:
MENU
STATUS
PRESET
Current
Load FACTORY/USER/PRESET1/2/3/4/5/6/7/8
Save USER
TUNING
CH 00 ÷ 59
GR 00 ÷ 39
Freq according to the freq.
range of the transmitter
AUDIO
AF Gain
AF Level
-60 ÷ +40 dB (1dB step)
-54 ÷ +46 dBu (1dBu step)
Phase 0 ÷180
HP Filt. flat/60/80/120/170/250/400Hz
Nois R. ENR-Wisy / ENC-Wisy
Limiter On/Off
RF/BATTERY
RF Power 10/20/50/100 mW
Battery Alkaline/NiMH/Lithium
RF On/Lock
RF Out On/Off
Autolock On/Off
LED
Led Light 00 ÷ 16
Led Mode None / ModePeak
MIC
Phantom (48V) On/Off
Data (TSQ) On/Off
NAME
INFO
IRDA
Lock
Preset parameters

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Using < > selector all menus can be accessed in sequence, push <ON/SEL> to enter edit mode:
- < > 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 menu are displayed during power up for few seconds.
This menu gives indication on product:
- product id (MTB40S),
- the firmware release (i.e. 1.30.0A),
- 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 MTB40S is
already synchronized with a receiver
-Current frequency (i.e. 520.000 MHz)
-Gain (i.e. AF: -12 dB) and high pass filter (i.e. HP: 120 Hz)
-“RF 10”, “RF 50” or “RF off” on top right if RF transmission is
ON (“RF 10” if the RF power is set to 10mW or “RF 50” if the
RF power is set to 50mW) or OFF
-Batteries charger (a bar with 7 level)
<PRESET> menu
This menu can be entered by pushing .
MTB40S can recall configuration presets.
“FACTORY” recalls the Wisycom factory configuration.
“USER” recalls the user configuration (the transmitter configuration
is copied into the USER using the “save to” submenu).
All “USER” menus are not locked by default, thus this is quick way
to unlock features!
When the user changes some parameters from the PRESET
configuration (for less than frequency) a star appears on the top-
right corner until a save command is executed.
The other 8 configuration presets are user programmable thru the infrared and the PC interface
(using the programmer UPK 300/UPK Mini or the receiver MRK950/MRK960).
We provide the device with some preset configurations specifically designed for certain types of
microphone or applications (it’s possible to change these presets in any time using the TX
manager).
All parameters can be “left unchanged”, “changed” or “changed and lock”, allowing a very flexible
way to pre-program MTB40S configuration.

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<TUNING> menu
This menu can be entered by pushing .
In this menu channel/group and frequencies can be setup.
The name of the group is shown on the top right of the display.
SYNC group is a quick self-settable channel synchronized by
receiver (with SYNC group, on the top right of the display is
shown the name of the synchronized receiver).
Use the selector ( ) to change values and <SEL> to confirm.
Using quick channel setup buttons (<CH>), it is possible to enter
quickly in the tuning menu. Note that the menu has a different
layout (see the side image)
<AUDIO> menu
In the AUDIO menu are shown all the audio parameters (this menu can be entered by pushing ).
The sensitivity of the audio input is settable between “AF Gain”
(measured in dB) or “AF Level” (measured in dBu).
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.
TRY TO SETUP TO HAVE A MAX PEAK HOLD BAR CLOSE TO -6dB.
Using quick gain setup buttons (<GAIN>), it is possible to enter
quickly in the audio gain menu. Note that the menu has a
different layout (see the side image)
The second <AUDIO> menu allows to set:
- audio phase (0° or 180°)
- High Pass Filter: applies different audio HP filter: Flat/ 60Hz/
80Hz/ 120Hz/ 170Hz/ 250Hz/ 400Hz.
The third <AUDIO> menu allows to set the noise reduction and
setup the limiter:
- MTB40S 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).
- Limiter: if is set “On”, an input audio signal above the peak
threshold (up to 30 dB above peak) is not cut but attenuate,
without lost quality. The limiter acts as a variable attenuator
(thanks to the feedback system), maintaining a distortion
<3%. When the limiter intervenes, the front led turns blue.
If this parameter is set “Off”, the limiter is disable.

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<RF/BATTERY> menu
This menu can be entered by pushing .
Her it’s possible to setup:
- “RF Power”, that can be 10 mW, 20mW, 50 mW
- Battery type can be setup in Alkaline, NiMH or Lithium.
Use the selector ( ) to change values and <SEL> to confirm.
<RF On/Lock> menu
This menu can be entered by pushing .
- RF Out: setup to On/Off to activate or not the radio
transmission.
- 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.
<LED> menu
This menu can be entered by pushing .
In “Led Light” the brightness of the front led ❼can be set from 0
to 16 level.
It’s also possible to 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).
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 Phantom (48V) and Data
(TSQ)
When Data (TSQ) is enabled, the transmitter sends the tone
squelch and the battery data to the receiver.
Use the selector ( ) to change values and <SEL> to confirm.
<NAME> menu
This menu can be entered by pushing .
In this menu it’s possible to see the frequency set on the device
and the name of the transmitter.

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<INFO> menu
This menu can be entered by pushing .
In this menu it’s possible to see:
-FW version
-HW version
-Serial number
-Bandwidth
-Bootloader version
-Option
<IRDA> menu
This menu can be entered by pushing .
While there is this menu, the device can be connected to IRDA
for setup or firmware upgrades.
Note: if the IRDA interface is enabled and there’s no
communication for around 10 seconds, the IRDA interface is
automatically turned off.
On power on the device, the IRDA interface is enabled for 14 seconds.
<LOCK> menu
This menu can be entered by pushing .
Long pressing (2 sec.) selector button (SEL) it locks MTB40S 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) or connecting the device via IRDA using the IR Programmer for FW update.
Device is forced in bootloader mode to allow FIRMWARE
UPDATE.

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HOW TO USE WISYCOM TX MANAGER
Wisycom TX Manager allows to read, modify and update the configuration of Wisycom transmitters.
It is necessary to
connected the programmer UPK300E/UPKMini or the receiver MRK950/MRK960 to the PC
thru USB connection
run the Wisycom TX Manager
enable the IRDA communication on the transmitter (see IRDA menu)
NOTE: Wisycom IR Programmer doesn’t 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 the image below):
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 to handle Groups, Channels and Frequencies
❹Presets panel allows to read, change and save different configurations
❶
❷
❸
❹

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10 different configurations are available:
•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 (❶)
At the beginning, the program checks which IR devices are detected and they appears 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.
In this panel it’s possible to assign a name to the TX (not available for FW v.1.22.0F or previous).
Under this parameter, there is a flag to hide the info menu on the TX (not available for FW v.1.22.0F
or previous)
CURRENT SETTINGS PANEL (❷)
In the Current Settings panel the user can
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 or hidden clicking the
related lock/hidden button, so the set value cannot be changed next or cannot be visible on
the OLED display.
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 (❸)
With the 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!

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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.
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 (❹)
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 doesn’t
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's 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 Variants on the next page)
Frequencies
Quartz PLL frequency synthesizer circuit (25 kHz step)
Frequency stability
▪± 2,5 ppm (in the rated temperature range)
Temp. range
-10 ÷ +55 °C
Max RF power
▪10 mW (ERP) (to respect some local norm)
▪20/50/100 mW (ERP) (note: in some countries middle power can be disabled, for local
norm!)
Spurious emissions
< 2 nW
Modulation
wideband FM, with 50 µs pre-emphasis
Nominal deviation
±40 kHz (Peak deviation = ±56 kHz)
Telemetry feature
MTB40S transmits also a digitally modulated sub-carrier, suitable for:
▪tone-squelch operating
▪remote battery monitoring
▪optional PTT (Push to talk) operation
AF input connector
XLR-3F (transformer isolated) with locking collar and 48V phantom power
AF input level
100 dB adjustable range from -54 dBu (775 uV) to 46 dBu (15.5 V) at peak deviation (1
kHz), adjustable in 1 dB steps
Max. input level
+46 dBu (15.5 V) at clipping, +20 dBu (7.75 V) at nominal level
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
AF bandwidth
▪45 Hz ÷ 21 KHz (3dB)
▪55 Hz ÷ 20 KHz (1dB)
Distortion
< 0.3 % (0.15 % typ.)
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) white display (128 x 32 pixels)
8 step battery lifetime indication: 7 bars (100%-87%-75%-63-50%-38%-25%) and “empty
bar” quickly blinking (12% remaining)
Led
RGB Led indication (red, green and blue):
▪Wireless transmission status
-Green when RF transmission power is on,
-Red when RF transmission power is off.
-Blue when the input signal is above the peak threshold
▪Modulation peak (if activated & limiter disabled): RED
▪Battery lifetime status: GREEN - steady (> 25%)
- slowly blinking (< 25%) - quickly blinking (<12%)
Power supply
2 AA size batteries (Alkaline, rechargeable NiMH or Lithium)
- Phantom power to Shotgun Microphone (max 4mA)
Dimension
123 x 39,4 x 34 mm (Height-Width-Depth)
Weight
Approx. 210 g. without batteries (250g with batt)

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POWER PROFILE & COUNTRY
FREQUENCY RANGE:
EU max power 50mW (Europe)
EUX max power 100mW (Europe)
US max power 50mW (USA & Canada)
USX max power 100mW (USA & Canada)
CN max power 50mW (China)
JP max power 10mW (Japan)
NZ max power 100mW (New Zealand)
AU max power 100mW (Australia)
US8 max power 100mW (USA)
For commercial code, see Variants area of Wisycom Products on website
VARIANTS:
▪FREQUENCY RANGE
B5 470-654 MHz
B2 566-798 MHz
B3 510-698 MHz
B8 940-960 MHz

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Note: unit is mm

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Compliance
Model
In Compliance with
Max Power
Country
MTB40S
MTB40S-EU
EN 301 489-1/-9
EN 600065
EN 300 422-1/-2
50mW
Europe
MTB40S-EUX
EN 301 489-1/-9
EN 600065
EN 300 422-1/-2
EN 300 454-1/-2
100mW*1
Europe
MTB40S-US
PART 74
FCC-ID: POUMTB40SUSX
RSS-210
IC: 11967A-MTB40SUSX
Limited to 663MHz
50mW
USA, Canada
MTB40S-USX
PART 74
FCC-ID: POUMTB40SUSX
RSS-210
IC: 11967A-MTB40SUSX
Limited to 663MHz
100mW
USA, Canada
MTB40S-US8
PART 74
FCC-ID: POUMTB40SUS8
Limited to
941.50-952.00MHz,
952.85-956.25MHz,
956.45-959.85MHz
100mW
USA
*1MTB40S-EUX is not an SRD device, thus it requires specific authorization by your local frequency authority!
Before putting the device into operation, please
observe the respective country-specific regulations!

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MANUFACTURER DECLARATIONS
In compliance with the following requirements
RoHS Directive (2002/95/EC)
WEEE Directive (2002/96/EC)
Please dispose of the diversity transmitter at the end of its operational lifetime
by taking it to your local collection point or recycling center for such equipment
Battery Directive (2006/66/EC)
The supplier batteries or rechargeable batteries can be recycled. Please dispose
of them as special waste or return them to your specialist dealer. In order to
protect the environment, only dispose of exhausted 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 ambientale 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 am-
ministrative 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
.