Beyerdynamic Unite TH User manual

UNITE TH
HANDHELD TRANSMITTER
HANDSENDER
QUICK START GUIDE
KURZANLEITUNG

en lish
Unite TH – Handheld Transmitter 3
This device complies with Pa 15 of the FCC Rules and with
Indury Canada licence-exempt RSS andard(s). Operation
is su ject to the following two conditions: (1) this device may
not cause harmful inteerence, and (2) this device mu
accept any inteerence received, including inteerence that
may cause undesired operation.
Le présent appareil e conforme aux CNR d’Indurie
Canada applica les aux appareils radio exempts de licence.
L’exploitation e autorisée aux deux conditions suivantes: (1)
l’appareil ne doit pas produire de rouillage, et (2) l’utilisateur
de l’appareil doit accepter tout rouillage radioélectrique
su i, même si le rouillage e suscepti le d’en compro-
mettre le fonctionnement.
This equipment has een teed and found to comply with
the limits for a Class A digital device, pursuant to Pa 15
of the FCC Rules. These limits are designed to provide
reasona le protection again harmful inteerence when
the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not inalled and used in accordance with the
inruction manual, may cause harmful inteerence to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful inteerence in which case the
user will e required to correct the inteerence at his own
expense.
Changes or modifications made to this equipment not
expressly approved y Beyerdynamic may void the FCC
authorization to operate this equipment.
Radiofrequency radiation exposure Information:
For ody worn operation, this equipment has een teed
and meets the FCC RF exposure guidelines when used with
the Beyerdynamic accessories supplied or designated for
this product. Use of other accessories may not ensure
compliance with FCC RF exposure guidelines.
Ee produto eá homologado pela Anatel, de acordo com
os procedimentos regulamentados pela Resolução n°.
242/2000 e atende aos requisites técnicos aplicados,
incluindo os limites de exposição da Taxa de A sorção
Específica referente a campos elétricos, magnéticos e
eletromagnéticos de radiofreqüência de acordo com as
Resoluções n°. 303/2002 e 533/2009.
Japanese Radio Law Compliance:
This device is granted pursuant to the Japanese Radio Law
(電波法).
This device should not e modified (otherwise the granted
designation num er will ecome invalid).

Unite TH – Handheld Transmitter
4
Country Approval
USA
Canada IC: 3628C-UNITEHBT
Europe
Japan
FCC ID: OSDUNITEHBT
Compliance Information
The devices conforms to the EU guidelines
(EMC) 2014/30/EU
(LVD) 2014/35/EU
(RED) 2014/53/EU
as atteed y the CE mark.
R 202-SMH014

en lish
Unite TH – Handheld Transmitter 5
Thank you for choosing the Unite TH handheld transmitter.
To ensure an optimum peormance, we would like to give you
a rief introduction on how to use this handheld transmitter.
The Unite TH handheld transmitter was designed for arrier-
free use:
– raised sym ols or raille on the operating uttons for the
lind
For detailed operating inructions in your language, please
visit: www. eyerdynamic.com/unite
1. Safety instructions
General
• Please READ this user manual efore the first use.
• Please KEEP this user manual.
• Please FOLLOW the specified operating and safety
instructions.
Disclaimer
• eyerdynamic Gm H & Co. KG will not e lia le for any
damage to the product or injury to persons caused y
negligent, improper, incorrect or inappropriate operation of
the product.
Troubleshootin / repairs
• Never open the device yourself.
• Refer all service work to authorised professionals only.
Cleanin
• Only clean the device with a dry or slightly damp cloth.
Never use solvents, as these will damage the surface.
Rechar eable battery
• The handheld transmitter is operated with the a lithium ion
attery, which must replaced y trained service staff only.
• Use only a USB 2.0/3.0 compliant 5V power supply to charge
the attery via the integrated USB
type-C port (power consumption is max. 500 mA).
• High temperatures, paicularly in association with a high
charging atus, result in irreversi le damage of the attery.
• If you are not intending to use the attery for an extended
period or are planning to put it into orage, it is advisa le to
lower the attery’s charging level to around 50% and to ore
it at temperatures of maximum 30 °C.
• In order to ensure safe transpo y land, sea and air, the
attery used for the handheld transmitter is teed
according to the UN 38.3 transpo regulation for lithium-ion
atteries.
• Misuse or improper use could damage the attery. In
extreme cases, there is a risk of explosion, heat, fire, smoke
or gas.
• Never expose the attery to excessive heat such as
sunshine, fire or the like.

Unite TH – Handheld Transmitter
6
• Do not expose the attery to mechanical shock.
• Charge the attery efore initial use.
• Use the specified chargers for charging the attery.
• Avoid complete draining of the attery. This could damage
the attery and shorten its service life.
• If you do not use the transmitter for several months, the
atteries should e charged at least twice a year to prevent
deterioration in performance due to self-discharge.
• Clean the charging contacts of the transmitter with a clean
dry cloth, if they ecome dirty.
• Do not short-circuit the attery.
• The charging contacts could cause property damage, injuries
or fire damage if they come into contact with conductive
materials such as jewellery, keys or chains. This can lead to a
closed electric circuit and, therefore, to the material
overheating. To avoid this kind of unintentional electric circuit,
the charging contacts must e handled with care. This is
especially important if the transmitter is transported in a ag
or another container containing other metallic o jects.
Moisture / heat sources
• Keep the attery clean and dry. Never expose the device to
rain or high humidity. Do not install it in the immediate
vicinity of swimming pools, shower facilities, damp ase-
ments or other areas with unusually high air humidity.
• Never place o jects filled with water (e.g. vases or drinking
glasses) on the device. Liquids in the devices may cause a
short circuit.
• Never install or operate the device in the immediate vicinity
of radiators, lighting systems or other heat- generating
devices.

en lish
Unite TH – Handheld Transmitter 7
Disposal
At the end of its operating life this product may not
e disposed of along with normal household waste.
Please take it to a designated recycling point for
electric and electronic appliances. This is indicated
y the sym ol on the product, the operating
instructions or the packaging.
Simplified EU declaration of conformity
eyerdynamic here y declares that the wireless
transmission device complies with the EU Directive 2014/53/EU
(RED). The complete text of the EU declaration of conformity is
availa le online at the following address:
http://www. eyerdynamic.com/cod
2. Supplied accessories
• Unite TH handheld transmitter
• Quick Start Guide
• Coloured rings (1 x lack, 1 x orange)
• Storage ag
• MA-CL 36 microphone clamp

Unite TH – Handheld Transmitter
8
3. Operatin elements
3.1 Device (refer to the fold-out page)
 Microphone grille, detacha le
 Mute utton with status indicator light and raille
inscription
With this utton you can mute or activate the microphone.
– Status indicator light – during operation:
– in the charger:
Indicator li ht Operatin status
Off Device is switched off
Flashing yellow
slowly
• Ready to operate and
attery status > 10%
• Out of range (in slave
mode only)
Yellow In Request mode:
Connection esta lished, ut no
audio transmission;
attery status > 10 %
Green Connection esta lished, audio
transmission running (microphone
open or another audio source is
used) and attery status > 10%
Flashing green
slowly
Microphone is muted
Flashing red slowly Low attery level < 10%
Red Device is starting
Flashing red/green
rapidly
Firmware update is running
Flashing red rapidly Critical error
Indicator li ht Char in status
Off Device is switched off
Flashing green
slowly
Charging 0 - 100%
Green Battery is charged
Flashing yellow
slowly
Pairing information is eing
copied from the transmitter
Yellow for
10 seconds
Device information is
copied successfully to
charger/devices

en lish
Unite TH – Handheld Transmitter 9
 Display
The display indicates the channel name, attery status
and different menus.
On/Off and menu utton
Use the on/off utton to turn the transmitter on or off. To
switch off the device, hold down the utton for 5 seconds.
In order to activate the main menu, hold down the utton
for 2 seconds. Use the menu utton to confirm settings. For
a detailed description of the individual menus and menu
items, please refer to the Unite manual on the internet at:
www. eyerdynamic.com/unite
Multifunction utton
If you are in a menu, you can scroll through the menu to
make various settings.
The following functions are availa le as shortcuts y using
the multifunction utton:
1. Talkback function on / off
On the Unite TH you can activate/deactivate the
Talk ack function: Press and hold the qsym ol of the
multifunction utton > 2 seconds until “hi Talk ack” is
displayed. Select the desired Talk ack “On” or “Off”
option.
As a third option you will find “Request”. When using this
option, the speaker can select on the transmitter if
he/she wants to accept (“Accept”) or refuse (“Deny”) the
request. You will find a detailed description in the system
operating instructions at: www. eyerdynamic.com/unite
2. Clear function
When the Talk ack function is activated on the
transmitter (“Master”) and Unite RP-T receiver, you can
use the Clear function to centrally turn off all activated
microphones.
To do this, riefly press the qsym ol of the multifunction
utton on the Unite TH. Then confirm the “Clear Mics”
prompt with “Yes” or “No”.
3. Button lock
In order to activate or deactivate the utton lock
function, press and hold the mute utton and the por
qsym ol of the multifunction utton for more than
3 seconds.
Indicator li ht Char in status
Flashes red slowly for
10 seconds
• Too many transmitters in
the charger when pairing
is initiated
• Other paring error
Flashing green/
yellow rapidly
Device is eing localised
Flashing red/green
rapidly
Firmware update is running
Flashing red rapidly Charging error

Unite TH – Handheld Transmitter
10
3.2 Display
The main screen ( elow) is displayed when the handheld
transmitter is switched on and ready for operation.
Display of all active speakers
M = “Master”
S = 1st “Su -Master” or 1st speaker (Unite RP-T)
S = 2nd “Su -Master” or 2nd speaker (Unite RP-T)
(the highlighted display shows if the “Master”,
1st “Su -Master” or 2nd “Su -Master” is active)
An underline displays if the device has een configured as
a “Master” or “Su -Master”. .
Underlined “M” = “Master”
Underlined “S” = “Su -Master”
Current channel name
Bluetooth® status
(various sym ols; depending on the status)
Bluetooth activated
Bluetooth connected
Display of active or muted microphone:
Microphone muted
Microphone active
Coloured ring, replacea le
Type plate
Charging contacts
The uilt-in attery is charged via the charging contacts
when the device is inserted into the charger. Make sure to
insert the device fully into the charging slot so that the
charging contacts have proper contact.
USB port, Type C
You can use this connector to charge the integrated attery
via a USB power adapter. Furthermore, you can connect the
handheld transmitter to the USB Type C port on a Unite
charger to charge it or to pair it with other devices.
UNITE
80
MSS %





en lish
Unite TH – Handheld Transmitter 11
4. General operation
•Important: Before using the handheld transmitter for the
first time, you must charge the uilt-in attery. Please use an
appropriate Unite charger or the USB connection.
• Switch on the transmitter y pressing the on-off utton .
• In order to esta lish an audio connection etween a
transmitter and one or more receivers, all devices must e
paired together. See chapter 5.
• All devices are supplied with the group ID 256 and fixed
audio encryption allowing quick and easy initial use. This
allows a fast and easy first use, since there is no pairing
required for the open group ID range etween 150 and 256.
• The transmitter will only transmit the audio signal on a
channel with a predefined channel name. If there are
several transmitters in the group ID etween 150 and 256, the
channel for the respective transmitter can e selected on
the receiver.
4.1 Maintenance
• Protect the handheld transmitter from humidity, knocks and
shock. Avoid dropping the transmitter at all times.
• For cleaning the plastic surface of the handheld transmitter
use a soft cloth moistened with a solvent-free plastic
cleaner.
• As soon as your microphone
sounds dull, you should clean
the integrated pop shield:
– Unscrew the microphone
grille  anti-clockwise.
– Pull out the foam pop
shield, if necessary use
tweezers.
Function
Mute/Menu/Ok
Unscrew microphone grille
Pull out the pop shield
There is an active, idirectional talk ack connection
(Full-Duplex connection) etween:
– a “Master” and a Unite RP-T receiver
– a “Master” and a “Su -Master”
The “hi” sym ol is only displayed on the connected
devices during an active talk ack connection.
The other devices of a group display a highlighted “S” during
an active talk ack connection etween two devices.
Display of remaining attery capacity

Unite TH – Handheld Transmitter
12
– Clean it under clear running water.
– If necessary, use a mild washing-up
liquid.
– Dry it afterwards with a hairdryer or
allow it to dry overnight.
– Clean the microphone grille oth
inside and out with a slightly
moistened cloth or a soft rush
under clear running water and
allow it to dry overnight.
– The microphone grille cannot e
cleaned in a dishwasher.
– Place the dry pop shield inside the
microphone grille and replace the
microphone grille y screwing it
on clockwise.
Clean the foam
pop shield
4.2 How to replace the coloured rin
• Press the coloured ring with two fingers slightly together,
gra the small loop and pull the coloured ring carefully from
the transmitter.
Gra the coloured ring
Menu/Ok
MuteFunction
/
Pull the ring from the transmitter
Menu/Ok
MuteFunction
/
• Slide the new coloured ring from the
ottom onto the transmitter.
Make sure that the coloured ring is not
twisted.
Menu/OkMute Function
/
Slide the coloured ring
onto the transmitter

en lish
Unite TH – Handheld Transmitter 13
4.3 Handlin
• Avoid holding the handheld transmitter at the top or ottom.
You could cover the integrated antennae and therefore
reduce the range. Always hold the handheld transmitter in
the middle.
4.4 Microphone ain and noise suppression
• The Unite TH handheld transmitter provides various options
to adjust the microphone gain and noise suppression auto-
matically or manually. These options are ena led y an
integrated digital signal processor (DSP).
• You will find the settings of these two DSP effects in the
menu at “Audio” g“Input Effects”.
• At the factory the “ALC” (Automatic Level Control) and
“Noise Canceller” are activated.
If the “ALC” function is activated, the device performs an
adjustment of the microphone gain to ensure that the signal
is as evenly loud as possi le. The result is a natural compression
effect – the integrated digital signal processor (DSP)
responds to the volume of the incoming signal and auto-
matically increases the volume of quiet signals while limiting
loud signals. This results in a very constant volume, which
increases the intelligi ility of speech significantly.
Note: If the “ALC” function is active, the microphone gain
cannot e adjusted manually any longer. The appropriate
menu displays “ALC active!”.
• The “Noise Canceller” function almost completely
eliminated continuously occurring ackground noise and
attenuates punctual ackground noise. In contrast to the
“Noise Gate” function, the “Noise Canceller” is also active
when you speak into the microphone.
Wrong hand position
Function
/Menu/Ok
Function
Mute/Menu/Ok
Correct hand position
Mute

Unite TH – Handheld Transmitter
14
4.4.1 How to use the “ALC” function
• The “ALC” function provides two options:
– “Near” for using the microphone close to the mouth
– “Far” for using the microphone at chest height
You can find oth option in the menu at “Audio” g“Input
Effects” g“ALC”.
• When using the “Far” setting, the “ALC” function will activate
at a lower speech volume. When using the “Near” setting,
you must hold the microphone at a maximum distance of
15 cm to the mouth. Furthermore, the automatic control
range of the “Far” setting is higher than of the “Near” setting.
This means: Due to the higher microphone gain when
selecting the “Far” setting, your freedom of movement is
igger compared to the “Near” setting.
4.4.1.1 “Far” settin
• The factory setting “Far” is selected, with which you can
optimally use the microphone at a distance of approx. 15 to
25 cm to the mouth (chest height).
The advantage of this setting results in an arm-friendly
posture and a slightly greater freedom of movement.
Important: Due to the higher gain and the igger control
range loud ackground noise can affect the “ALC” function.
-6dBFS
Far Near
(quiet) (loud)
In
Out
control range
speech volume
/
/Mute
How to hold the microphone when
using the “Far” setting

en lish
Unite TH – Handheld Transmitter 15
4.4.1.2 “Near” settin
• The “Near” setting is alternatively availa le allowing you to
use the microphone closer to the mouth ( elow the chin).
Important: In an environment with loud ackground noise it
is useful to hold the microphone closer to the mouth so that
the “ALC” function can etter distinguish etween speech
signal and ackground noise.
/Mute
How to hold the microphone when using the
“Near” setting
Optimum speaking distance when
the “ALC” function is deactivated
Mute Mute
4.4.2 Manual adjustment of the microphone ain
without usin “ALC”
• If you do not want to use the “ALC” function (e.g. due to
extreme ackground noise in your environment), you can
manually reduce the microphone gain for loud speakers and
increase the microphone gain for quiet speakers. In oth
cases use the On/Off and menu utton  to access the
menu at “Audio” g“Volume” g“Internal Mic”.
• If you deactivate the “ALC” function, please make sure that
you keep a constant speaking distance to the mouth to
achieve an optimum speech transmission.
• Avoid holding the microphone closer or further away from
your mouth. Also avoid turning your head while speaking.

Unite TH – Handheld Transmitter
16
4.4.3 Compressor and Noise Gate
• The “ALC” and “Noise Canceller” functions are intelligent DSP
algorithms which react to an incoming signal. If very loud
and various ackground noise occurs in your environment,
the algorithms can no longer distinguish etween micro-
phone signal and noise so that the do not work optimally.
• This is illustrated y the following example: During a sight-
seeing tour on the upper floor of an open us, a strong
airflow occurs and enters the microphone capsule. The DSP
algorithms “ALC” and “Noise Canceller” can not distinguish
etween airflow and speech signal.
• For such situations a compressor is availa le in addition to
the automatic control of the microphone gain (“ALC”). You
will find this function in the menu at “Audio” g“Input Effects”
g“Compressor”.
The compressor statically increases the volume of soft
speech signals.
The following options are availa le:
“low” = compression 2:1
“high” = compression 4:1
“less pop noise” = relatively high degree of compression to
contain explosive sound
• In addition to this you can the “Noise Gate” function instead
of the intelligent “Noise Canceller”. The “Noise Gate” starts to
work at a defined threshold and eliminates ackground
noise during pauses in speech.
• You will find this function in the menu at “Audio” g“Input
Effects” g“Noise Gate”.
4.5 Bluetooth® interface
• The Bluetooth® function of the handheld transmitter is used
as an audio interface for the following applications.
1. For the use with a Bluetooth® headphones
(Use of the Talkback functionality)
Since the Unite TH does not have a headphone output,
you can connect a headphone via Bluetooth®. This allows
listening to the talk ack signals of the Unite RP-T receiver
and “Su -Master” devices.
2. For playback
You can also use the Bluetooth® function to play ack
audio signals from external sources (e.g. smartphones
or computers).
Tip: If Bluetooth® is used for the play ack of external
audio sources, we recommend using the DSP effect
“Ducker”. The “Ducker” decreases the signal of an external
audio source as soon as someone is speaking into the
microphone capsule ensuring optimal speech intelligi ility.
You will find a detailed description of the use of the Bluetooth®
function in the comprehensive “Unite” system manual on the
internet at www. eyerdynamic.com/unite.

en lish
Unite TH – Handheld Transmitter 17
4.6 Use as a “Sub-Master”
The Unite TH handheld transmitter can e configured in a
virtual device mode (“Su -Master”). This allows up to two
additional speakers to e integrated into a device group. You
will find examples for applications in the download area of the
landing page: https://www. eyerdynamic.com/unite at Info
materials/UNITE-USE-CASES
In the “Su -Master” mode, the transmitter can set up an
exclusive connection to a “Master” device. In one group a
maximum of two “Su -Masters” can e active. The connection
etween a “Su -Master” and a “Master” device is technically
the same as the connection etween a Unite RP-T with
activated “Talk ack” function and a “Master”. The difference is
that the connection etween a Unite RP-T and a “Master” is
temporary while the connection etween a “Su -Master” and
a “Master” is permanent. In this case the audio channel is
permanently open, ut it can e muted y pressing the “Mute”
utton on the “Su -Master”. In addition there are of course still
possi ilities to connect external audio sources to the “Su -
Master”. All audio signals of the “Su -Master” are distri uted
via the “Master” (Broadcast) and can e routed to the “Master”.
These options can e found in the “Master” menu at “Talk ack”
g“Audio Routing”.
Examples of up to 3 open microphones in the followin
device combinations:
- 1x “Master” + 2x “Su -Master”
- 1x “Master” + 2x RP-T (Talk ack )
- 1x “Master” + 1x “Su -Master” + 1x RP-T (Talk ack)
4.6.1 How to confi ure a “Sub-Master”
In order to configure the Unite TH transmitter as a “Su -
Master”, proceed as descri ed elow:
• Use the On/Off and menu utton to access the menu
“System” g“Device Mode”.
• Select the “Su -Master” option.
• Confirm the selected option with the On/Off and menu
utton .
• Restart the transmitter y pressing the On/Off and menu
utton .
• The transmitter reconfigures itself. This can take 1 - 2 minutes.
• You can reconfigure the device as “Master” at any time.
Note: When you configure a transmitter as a “Su -Master” a
factory setting for the “Su -Master” will e automatically
activated. This sets the value for the “ALC” function to “Far”
and for the “Noise Canceller” function to “low”. This is also the
factory setting for the configuration as “Master”.

Unite TH – Handheld Transmitter
18
4.6.2 How to connect a “Sub-Master” to a “Master”
In order to connect a “Su -Master” to a “Master”, you have to
perform a channel search. Please proceed as descri ed
elow:
• Press the por qsym ol of the multifunction utton  and
start the dynamic channel search.
• The asic conditions to esta lish a connection must e
guaranteed (refer to chapter “Pairing information”).
Alternatively, you can transmit the pairing information via a
charger. As a “Su -Master”, the transmitter will receive the
channel name, group ID and audio encryption key from the
charger like a Unite RP or RP-T.
4.7 How to use with a Unite AP4 access point
In conjunction with a Unite AP4 access point the Unite TH can
e used as a wireless microphone. In order to esta lish a
connection to a Unite AP4, the Unite TH must e configured as
“AP4 Mic (Su -Master)” via the menu. This mode is technically
equivalent to a “Su -Master”, which can esta lish an exclusive
connection to a “Master” (Unite AP4).
4.7.1 How to confi ure as “AP4 Mic (Sub-Master)”
• In order to configure the Unite TH in the “Su -Master” mode,
select in the menu “System” g“Device Mode” g“AP4 Mic
(Su -Master)”.
• Confirm the selected option with the On/Off and menu
utton .
• Restart the transmitter y pressing the On/Off and menu
utton .
• The transmitter reconfigures itself. This can take 1 - 2 minutes.
• You can reconfigure the device as “Master” at any time.
4.7.2 How to connect to a Unite AP4 Master
• In order to use the Unite TH as a wireless microphone with a
Unite AP4, you must perform a channel search.
• Press the qor psym ol of the function utton on the
Unite TH to start the dynamic channel search. The asic
conditions to esta lish a connection must e guaranteed
(refer to chapter “Pairing information”).
• The second way to esta lish a connection etween the
Unite TH and Unite AP4 is to use the Unite Manager PC
software for pairing. Please refer to the Unite Manager PC
software manual.

en lish
Unite TH – Handheld Transmitter 19
5.1 Encryption
The audio data is always encrypted with an AES-256 code to
ensure a secure transmission. The required key will be
enerated within the char in unit itself or via the Unite
Mana er PC software and transmitted to the transmitters and
receivers durin the pairin process.
As the key is not transmitted via radio, the system is even
etter protected against eavesdropping.
Should the receiver receive a different encrypted audio signal
for which no key has een saved, the received audio signal will
e muted. The receiver display will also alternate etween
showing the relevant channel name and the “KEY!” error
message.
The encryption of the audio signal is shown schematically in
the following diagram.
Encryption
RP
RP
A
AA
B
TH
Pairing
KEY!
80
Note: The group IDs in the range of 150 to 256 uses a factory-
defined key that cannot e changed. You can use this group ID
for a system without pairing.
5. Pairin information
In order to communicate with each other, transmitter and
receivers must have the same encryption key, group ID and
channel name. Only then they can communicate with each
other. There will e no communication with receivers that do
not have the same pairing information. This is illustrated in the
figure elow.
Group ID 256
Name 1
A
Group ID 256
Name 1
A
Group ID 1
Name 2
TH
B
RP
RP

Unite TH – Handheld Transmitter
20
5.2 Group ID
The group ID refers to devices that can e com ined to a
virtual group. For example, all devices of a uilding, a travel
group or a conference room.
Use with the roup ID 150 - 256
By default, the transmitters and receivers are supplied with the
group ID 256.
A common factory-set audio encryption key, which cannot e
changed, is used for the group ID range of 150 to 256. Due to the
factory-set audio encryption key the devices within the group
ID range of 150 to 256 can connect to each other without
pairing via the charger. In this case receivers can connect to
transmitters via the dynamic channel search.
Example: Via the dynamic channel search, a receiver which is
set to the group ID 160 will find all transmitters which are active
and also set to the group ID 160. The receiver can connect to a
transmitter without pairing. The receiver will not find
transmitters eyond the set group ID range of 160.
Attention: When using several transmitters (e.g. Unite AP4 and
several Unite TP) with the same group ID at the same time,
make sure that the individual channel names differ from each
other! Otherwise this can cause connection pro lems with the
receivers!
Use with the individual roup ID 1 - 149
If several receivers are to e divided into different groups with
an individual encryption, for each group an individual group ID
etween 1 and 149 can e assigned. A separate audio
encryption key is generated for an individual group ID in order
to ensure additional security against unauthorised listening
during the wireless transmission. This audio encryption key is
generated during the pairing process, stored in the charger
and transmitted from the charger to the transmitter and
receiver, along with the channel name and group ID. The
receivers can only connect to a transmitter with which they
have een paired via the charger. If the group ID is
su sequently set manually on a receiver which has not een
paired, no connection can e esta lished to the transmitter
with the encrypted group ID, ecause the receiver does not
have the audio encryption key (refer to chapter “Encryption”).