Accessible Audio transmission systems

Accessible Audio transmission systems
Accessible Audio
transmission systems
Induction loop systems,
radio-frequency and
infrared transmission
systems:
The technology, consulting
and services package for the
professional use of audio
transmission systems in private
and public environments
HUMANTECHNIK – Your partner
for audiological products
2
Introduction:
Accessible sound in private and public facilities............................. 4
Technical solutions............................................................................5
Comprehensive service offer from HUMANTECHNIK.......................5
Systems based on different physical principles
and their main areas of application (table).......................................5
Induction loop systems
Function and use of induction loop systems.....................................6
Portable induction loop systems and components...........................8
Induction loop amplifiers for small and medium-sized rooms..........9
Accessible Audio
transmission systems
Induction loop amplifiers for large areas.........................................10
Low-overspill systems (LOS): Function and use.............................12
Induction loop amplifier systems for LOS installations....................13
Induction loop receivers and receiver accessories........................14
General accessories for induction loop systems............................15
Infrared transmission systems
Function and use of infrared transmission systems........................16
High-powered infrared transmitters and modulators......................18
Configuration examples..................................................................20
Two-channel infrared transmitters with integrated modulators.......21
Infrared receivers............................................................................22
Infrared transmission system for small to medium-sized rooms.....24
Accessories for infrared transmission systems...............................25
This information brochure shows the
structure and scope of the HUMANTECHNIK programme »Accessible
Audio transmission systems« at the
time of its publication, 02/2011.
HUMANTECHNIK GmbH reserves the
right to make technical developments
and changes to the structure and
scope of its delivery programme in
respect of the components described
here. This brochure is therefore
exclusively for information about
available systems, their accessories
and application - but is not binding
as far as orders are concerned. We
will be pleased to advise you on the
basis of the current programme status
before you place your order.
Radio-frequency transmission systems
Function and use of radio-frequency transmission systems...........28
Digi-WaveTM: mobile 2.4 GHz transmission system
with up to 15 simultaneous channels..............................................30
Portable 3-channel transmission system........................................34
Radio-frequency transmitters to large-coverage areas..................36
Example configuration.....................................................................37
Portable radio-frequency CM-1 transmission system.....................38
Stationary 3-channel transmission system......................................39
Accessories for radio-frequency transmission systems..................40
Keyword list.....................................................................................43
3
The percentage of people
handicapped people in a general
The equal treatment of the dis-
with impaired hearing is on the
way, without any particular difficulty
advantaged and minorities has,
increase.
and without necessitating the help
however, now become a central
of third parties.«
concern of the European Union
The demographic shift in age has
Accessible sound:
Greater independence
in public life for
people with hearing
disabilities.
had a decided impact on this de-
Needless to say, the term acces-
velopment. Hearing loss – even if
sibility also includes the access of
only slight – can now be detected
the hearing impaired to acoustic
in every fourth 50- to 59-year-old.
information – starting with such
Among people over 70, the number
elementary sounds as alarms and
who are hard of hearing is already
emergency signals to educational
considerably higher at more than
information and communications
fifty percent – with significantly
and right on up to acoustic par-
greater hearing loss. The percent-
ticipation in cultural and sporting
age of people in these age groups
events.
is also expected to increase in the
future.
Even contemporary hearing aids
are not able to guarantee good
Right to participation in
hearing and clear understanding
cultural life
in every situation. In noisy environ-
This so-called »50plus Generation«
is very active in shaping public
life. They represent a group with
considerable purchasing power,
take advantage of a comprehensive
range of cultural offers and use all
contemporary media. And they
also demand – quite justifiably –
unlimited access to information and
ments or in rooms with extreme
resonance or echoes, for example,
these systems often quickly reach
their limits. That’s why audio transmission systems that effectively
include or supplement hearing aids
are now often used, particularly in
places where interruption-free communication is important.
communication – which constitutes
These systems feed the sound
acoustically accessible infrastruc-
either directly into a hearing aid or
tures in the broadest sense.
a CI system or make it available to
the user via special receivers.
The accessible design of public
and private infrastructures
The German law for the equality of
National laws on equality and
their implementation
disabled persons (BGG) defines
The application of equality guide-
accessibility as follows: »Buildings
lines (anti-discrimination laws) is
and other facilities, means of trans-
as diverse as the cultural attributes
port, technical apparatus, systems
of the individual European states.
for information processing, acous-
While far-reaching measures en­
tic and visual sources of information
abling equal treatment are already
and communication facilities as well
common in France, the Nether-
as all other areas of life are acces-
lands, Great Britain and Scandi-
sible when they are useable by
navian countries, for example, the
provision of accessible infrastructures is lagging behind in other
countries – as in Germany.
4
(EU Basic Treaty). In this respect,
the consistent implementation of
accessible infrastructures – particularly in government offices,
but also in restaurants, at event
venues and in public transportation
systems – will only be a question of
time for all EU nations.
Europe’s self-image
The EU appeals to all its member
states to not discriminate against
anyone because of his/her personal
situation. Article 26 of the Charter of
Fundamental Rights of the European Union, for example, reads: »The
Union recognises and respects the
right of persons with disabilities to
benefit from measures designed to
ensure their independence, social
and occupational integration and
participation in the life of the community.«
Technical solutions for
The table (below) provides a brief
components, list their main techni-
accessible sound
overview of the main selection
cal data and provide you with as-
criteria.
sistance in making your purchasing
In addition to building acoustics
decisionl.
and electro-acoustic public ad-
The main advantage of all these sys-
dress systems (DIN 18041), the
tems is that the sound is delivered to
Special skills or knowledge are often
following systems can be used for
the listeners in a pure, undistorted
required in the planning, project
a significantly higher proportion of
form that is not influenced by the
development and installation of
direct sound:
distance of the listeners to the
sound transmission systems. That’s
sound source or by any annoying
why we offer system operators and
background noise in the room.
architects a comprehensive con-
Induction loop systems
Infrared transmission systems
Radio-frequency transmission
systems
In order to ensure that the listening
sulting and services package in this
HUMANTECHNIK provides
field. From qualified information to
a comprehensive range of
competent support in the planning
assistive listening services.
process and right on up to the
systems provided are effective, it is
The HUMANTECHNIK program is
installation and first-time operation
important to compare the require-
structured in a cross-system man-
of the system, we will accompany
ments of the venue and its architec-
ner and includes components and
you every step of the way with our
tural features with the properties of
the complete range of accessories
consulting services to ensure the
the transmission systems early in
for transmission systems using all
effective implementation of your
the decision-making process.
three of the physical principles
professional audio transmission
mentioned here. The following
system.
pages will present the technical
A comparison of systems
using different physical
transmission principles
Induction
loop
systems
HUMANTECHNIK
offers a compre­
hensive package
of technology,
consulting and
services for the
professional use
of audio transmission systems.
Infrared
Radio-frequency
transmission
transmission
systems
systems
Small to medium-sized conference rooms
Partial provision, e.g. information counters, reception areas, living areas
Cinemas (particularly multiplex cinemas)
*
Courtrooms (data confidentiality), conference rooms
City centres (high radio-frequency emissions)
Auditoriums, theatres
Schools and universities
*
Stadiums, sport arenas
**
Churches
Open-air applications
**
Direct reception in the hearing aid (without a special receiver)
Tour-guide systems available
Locally limited reception range
*
Not susceptible to electromagnetic interference
Interference-free parallel operation in neighbouring rooms
*
Portable systems available
Excellent sound quality
Several channels available
Service provided for very large areas/large range
Easy installation
Inexpensive components and installation
Inconspicuous transmitter positioning (aesthetics)
Transmitter and receiver do not require direct line of sight
Optimally suited or
applicable
Limited suitability
(depending on details
of set-up) or limited
applicability
Suitable in exceptions
or hardly applicable
* For use of low-overspill systems (LOS) – ** Service provision in partial areas (selected seat rows/blocks)
5
What is an induction loop
amplifier, connected with an audio
Planning induction loop
system?
source (hi-fi system, speaker’s
systems
Using an inductive loop system,
hearing-aid wearers can pick up
the signals emitted by electric/
alternating current to the loop.
In order to install induction loop
systems correctly, it is necessary
to take into account many differ-
The magnetic field inside the loop
ent factors – with respect to the
phone or hi-fi systems) directly in
allows the listeners to move freely
architecture as well as the area in
their hearing aids or CI systems.
in the room and pick up the audio
which they are used. Some areas
As a result, they hear the sound
signals fed directly into their hear-
of use with special requirements
without any annoying background
ing aids.
include:
outstanding advantage of using
induction loop systems: no special
European standards and
legislation
receivers are required. All that’s
The technical requirements for in-
needed is the hearing aid.
duction loop systems are defined in
Most modern hearing aids are now
equipped with adjustable »M«
and »T« functions. »M« stands
for microphone, i.e. hearing the
sound in the room via the integrated
microphone, and »T« (telecoil)
means that the audio signals are
transmitted inductively and directly
via a telecoil integrated in the hearing aid. Some hearing aids are also
equipped with an »MT« function,
which combines both types of
reception, microphone and telecoil
so that the listeners are able to hear
the sound in the room as well as the
inductively transmitted signals.
How does an induction loop
system work?
Alternating current creates a magnetic field in a wire/a loop. If a
second wire is introduced into this
magnetic field (here: the telecoil
in a hearing aid), a correspondingly alternating current will also be
created in it: the electrical impulses
are »induced« into the second
wire without any actual electrical
connection.
An induction loop system consists
of a loop and an amplifier. The loop,
an insulated wire, runs around the
outside of the listening area. The
6
acoustic signals converted into
electronic audio sources (micro-
noise, echo or reverberation. An
Function and
use of induction
loop systems
microphone, etc.), transmits the
the European Standard EN 60118-4
(also known as IEC 118-4). This
standard, which HUMANTECHNIK
induction loop components meet
when installed correctly, regulates
the magnetic field strength and the
frequency range of the systems.
All induction loop systems also
comply with the CE standards,
which demand the strict control
of the equipment with respect to
interference, spurious emissions
and electrical safety.
Rooms without equally rectangular or square floor plans
Strong steel reinforcement
or electromagnetic fields from
other sources
Theatres / cinemas /
lecture halls
Rooms in which the loop is
positioned far away from the
listening level
Buildings in which several
independent loops have to be
installed close to one another
without interfering with one
another.
Installation tips
Loop position: In order to create a
uniform magnetic field, the distance
between the loop level to the normal
listening level should be between
approx. 1.2 and 2 metres.
The position and size of the
loop can also be determined by
Selection of the amplifier:
Area used
Reception, counter: TV rooms, nursing homes, living rooms:
Conference rooms, theatres:
Very large induction loop systems: Systems with little overspill: Portable induction loop system:
Amplifier
LA-90 / LA-215 / LA-60
Cross the Counter
LA-215 / PROLOOP C
PROLOOP C PROLOOP DCC
PROLOOP DCC
LOS systems
LOS systems
LA-90
loop system kit
Page/s
8/9
9
9 / 10
10 11
11
12
12
the position of the listening area
This table serves only as general orientation for selecting the amplifier.
(often much smaller than the size
Please take advantage of our consulting services before you make your
of the room) or the position of
purchase.
the microphones as well as other
technical equipment that affects
the magnetic field.
If possible, avoid using dynamic
microphones in combination with
induction loop systems. If they
cannot be avoided, they must be
positioned outside the loops. The
distance between the loop and the
dynamic microphone should be at
least half the diameter of the loop.
8
Recommended loop wire cross-sections:
Loop area
300-600 m²
200-300 m²
150-200 m²
70-150 m²
<= 70 m²
Single loop
(recommended cross-section)
4.0 mm²
4.0 mm²
2.5 mm²
1.5 mm²
1.5 mm²
Notes on the installation of induction loop
systems
The values indicated can be used for most induction loop systems.
For special solutions, please contact HUMANTECHNIK. H07V-K, for
example, is recommended as the induction loop wire to use.
Using a condenser or electret
Conducting materials, such as
microphone usually produces
reinforced concrete, can increase
better results with respect to
or decrease the area covered by the
interference or acoustic feedback.
loop. The magnetic field strength is
A microphone with a high-quality,
often increased outside the loop,
insulated connection cord also
while it is decreased inside. This
generally reduces magnetic feed-
fact considerably increases the
back.
risk of acoustic feedback. In a new
Reduce the area of the loop! The
connection wire to the loop must be
firmly twisted or closely parallel.
Make a test installation. Always
test the loop system to make sure
that it is powerful enough, that
the overspill does not cause any
problems, etc.
building, you should try to install
an LOS system. The LOS system
makes it more difficult for the current to connect with large metal
objects.
Pay particular attention to metal
frames. Do not fasten the loop to
structural elements made of metal or
to similar objects.
Adjust the height of the loop (1.2
to 2.0 m) to provide for the greatest
possible range with the smallest
amount of overspill.
Loops are generally laid around
the outside perimeter of the room.
The audio signals are then inductively transmitted to all the »coils«
inside the loop.
7
LA-90
Induction loop kit
BA-200
Portable induction
loop systems
LA-90
Order No.: A-4209-0
The »LA-90« is a compact, portable
induction loop system for appli-
Induction loop system kit
Order No.: A-4271-0
The induction loop system kit
BA-200: Induction loop
amplifier for coaches
Order No.: A-4225-0
contains a complete, portable in-
The BA-200 induction loop amplifier
duction loop system designed for
is designed to provide inductive
rooms up to 140 m² in size. The set
audio signals in coaches. The am-
includes the PROLOOP C induction
plifier is equipped with settings for
loop amplifier (see p. 10) as well as
basic volume and tone and uses
Positioned amidst the people
two cable reels with 25 metres of
Automatic Gain Control to effec-
speaking to each other, the »LA-90«
loop wire each and the PROLOOP
tively support volume stabilisation
uses an integrated microphone to
FSM measuring instrument incl.
for fluctuating input levels. Digital
pick up the sound and transmits the
DIR under-the-chin receiver (see p.
control makes it possible to select
corresponding inductive signals via
15). The system is easy to use and
one of the two audio sources con-
the integrated loop.
ready to go »in a flash« – ideal for
nected at the same time, e.g. a mi-
temporary installations.
crophone and a music system. Two
cations over short distances, for
example at reception desks, at
information counters or in sales
areas.
An optionally available microphone
mounting brackets come included
can be connected via the additional
with the system.
microphone jack (e.g. table microphone on page 15 or EH1205, see
right hand page)
Power can be provided by the power supply included with the system
or by the integrated rechargeable
battery.
Technical data
Dimensions (HxWxD): 200 x 185 x 70
Weight: 635 g (incl. rechargeable
batteries)
Microphone sensitivity: up to 60 dB
Prim. power supply: 100-240V 50-60 Hz
Secondary: 16 V DC or via integrated
12 V 1300 mAH rechargeable battery
Output power: max. 10 W
8
Technical data
Power supply: 220 - 240 V
Weight: 11 kg
Colour: Silver
Dimensions (HxWxD): 210 x 610 x 360 mm
Power cord: 2 m
Features
Max. power: 60 A
Max. voltage: 31 V
Frequency range: 100 - 5000 Hz ( ± 3 dB)
Distortion: < 1%
Technical data
Dimensions (HxWxD): 42 x 180 x 140 mm
Weight: 905 g
Colour: Silver-metallic
Power supply: 12 – 24 V DC
Power cord: 2 m
LA-60
LA-215
Induction loop pads
LA-60
Order No.: A-4213-0
The LA-60 induction loop amplifier is designed for use in small rooms up to
16 m2 or for partial signal coverage, at information counters, for example.
It is equipped with two line/mic input jacks, which can be selected and
activated by flipping a switch. The control switch is used to individually
adjust the volume. Control lamps help in the operation of the system by
indicating the corresponding status signals.
Technical data
Power supply:
180 – 265 V AC
50/60 Hz 10 VA
Dimensions (HxWxD): 65 x 121 x 35 mm
Weight: 146 g
Output power of the induction loop system
1.3 A RMS, 1.82 A surge output current
100 - 5 kHz – compliant with the BS6083 pt4 (IECI 18-4) standard for a loop,
with 24 / 0.2 cable (0.75 mm²) at 0.03 ohms/m
LA-215
Order No.: A-4223-0
The LA-215 is able to supply living
quarters or small conference rooms
up to approx. 50 m² in size with
inductive audio signals via the loop
connected. The system includes a
37-m long induction loop wire. In
and tone, the digitally controlled
induction loop amplifier uses Automatic Gain Control to stabilise the
volume for fluctuating input levels.
The device is able to accommodate
the connection of two audio sources.
at the touch of a button.
The »pad« contains a small loop. It is connected directly to the LA-215 or
LA-60 induction loop amplifier and placed under the seat cushion or behind
result, the signal coverage can be restricted to a very small area.
Small »Cross-the-counter« induction loop
Order No.: A-4917-0
The small »Cross-the-counter« induction loop has been designed to supply
induction loop signals to small areas, such as individual service points
or reception desks. The system is installed – generally underneath the
table top – using adhesive clamps with a space requirement of approx.
35 x 35 cm; recommended induction loop amplifier: LA-60 or LA-215.
»EH1205« replacement
microphone for LA-215 and LA-90
Bestell-Nr.: EH1205-0
Order No.: A-4910-0
the back of a chair. The connection cord for the pad is 4.50 m long. As a
Induction loop
amplifiers and
components for
small to mediumsized rooms
addition to settings for basic volume
The desired source can be selected
Induction loop pad for the LA-60 or the LA-215
Cross-the-counter
Technical data
2x mic jacks
2x line in jacks
2.85A RMS, 4A max. output power
Dimensions (HxWxD): 42 x 180 x 140 mm
Weight: 905 g
Colour: Silver-metallic
Power supply: 230 V AC 50 Hz 20 VA
Power cord: 2 m
What’s included
LA-215 with power cord
1x mic with 4 m of cable
37 m of single-wire strand 0.75 mm² and
Cable clips
Scart- / Cinch-cable
Directly connected to the induction loop
amplifier, the microphone (included with
the LA-215) provides a speaker with ample
freedom of movement in close dialog with
four meters of cable and a clip. It can also
be ordered separately as a replacement
microphone or a second microphone to be
connected to the second microphone jack.
LA-220
Order No.: A-4226-0
Use and equipment delivered is identical to the LA215, except it also includes
an external power supply
9
PROLOOP C
Induction loop
amplifier
High output current:
11 A RMS
PROLOOP C
Order No.: A-4246-0
Short-circuit-proof
Automatic fuse reset
The PROLOOP amplifier family is
Two symmetrical
designed for professional use in
XLR input jacks
medium-sized rooms (up to 170 m²)
One RCA input jack
in private buildings and public
One line output jack
facilities, in which particularly high
Extra-sturdy jacks
Dual action AGC
for excellent speech
recognition
High availability,
operating reliability and
quality assurance
Convenient monitoring of
the magnetic field: Can
be done using headphones or speakers
Treble control to compensate for treble losses
due to reinforcement
dependability and extremely reliable
operation are required.
Thanks to a 100-percent shortcircuit-proof amplifier, switchable,
symmetrical XLR input jacks and
extremely stable output performance, the PROLOOP C is able to
meet these demands.
Automatic Gain Control (AGC)
guarantees consistent field strength
and reproduces stable sound with a
special emphasis on clear speech,
even under acoustically demanding
conditions.
Corresponding test equipment
can be used to evaluate the sound
quality via the integrated monitor
out jack.
10
Technical data for the PROLOOP C
Mains connection: 230-240 V AC 50 Hz, 7-200 W, 10 A fuse
Coverage: 170 m² acc. to IEC 60118-4, single-loop, free field
Induction loop output
Max. current: 60 A from peak to peak, 1-5 ms, 1 kHz, 11 A RMS,
continuous 1 kHz, short-circuit-proof
Max. voltage: 31 V from peak to peak
Output AGC: Sets voltage and power for steady signals like oscillation
and sine curves after 0.6-1 seconds to -10 dB. Short pulses and
normal program signals are not limited.
Frequency response: 100 - 5000 Hz ( ± 3 dB)
Distortion: < 1%
Cable connection: Screw connection on rear panel of the amplifier
Outputs
1. LINE OUT: 0 dBm-RCA out (with AGC function)
Inputs
IN 1 und 2: 0.5 mV-100 mV / 10 kOhm (mic.) alt. 25 mV - 4 V/ 10 kOhm (line)
AGC, switchable phantom voltage, XLR connections
IN 3: 50 mV-10 V / 10 kOhm, RCA connection
AGC
Dynamics: > 70 dB
Rise time: 2 - 500 ms
Fall time: 0.5 - 20 dB/s
Controls and displays
Treble control: 0 - +9 dB, potentiometer
Induction loop
adjustment: 0 - 170 m², potentiometer
Displays: Mains connection: 1 green LED
Input level: 1 green LED
Induction loop power: 1 green LED
Induction loop monitoring
6.3 mm jack for headphone connection
Enclosure
Dimensions: 64 x 295 x 205 mm (H x W x D)
Weight: 3.6 kg
Colour: black
PROLOOP DCC Induction loop
amplifier
Technical data for the PROLOOP DCC
Mains connection: 230-240 V AC, 50 Hz, 25-700 W, 10 A fuse
Coverage:
800 m² acc. to IEC 60118-4, single-loop
Induction loop output
Max. power:
78 A / 0.06 ohms 25 A RMS, 10-300 ms 1 kHz,
short-circuit-proof
Max. voltage:
47 V from peak to peak
Output AGC: sets voltage and power for steady signals like oscillation
and sine curves,after 0.6 - 1 seconds to -10 dB. Short
pulses and normal program signals are not limited.
Frequency range:
100 - 5000 Hz (±3 dB)
Distortion:
<1%
Cable connection:
Screw connection on rear panel of the amplifier
Outputs
1. LINE OUT: 0 dBm-RCA (with AGC function)
Inputs
IN 1, 2 und 3: XLR connections (0,5 - 100 mV) microphone / (25 mV - 4 V) Line,
sensitivity, phantom voltage,
balanced/unbalanced and priority can be adjusted
separately for each input.
AGC
Dynamics: >70 dB
Rise time: 2 - 500 ms
Fall time: 0.5 - 20 dB/s
Controls and displays
Treble control: 0 - +9 dB (potentiometer)
Induction loop adjustment:0 - 800 m² (potentiometer)
Displays:
Mains connection: 1 green LED
Input level: 3 green LEDs
Induction loop power:5 red LEDs
Induction loop monitoring
6.3 mm jack for headphone connection
Enclosure
Dimensions: 90 x 439 x 295 mm (H x W x D)
Weight: 9.5 kg
Colour: black
PROLOOP DCC
Order No.: A-4263-0
High output current:
25 A RMS
Short-circuit-proof
Designed for rooms up to 800 m² in
Automatic fuse reset
size, the PROLOOP DCC induction
Three symmetrical
XLR inputs
loop amplifier is an ideal solution
for event venues and larger assembly halls.
Short-circuit-proof amplifiers with
switchable, symmetrical XLR inputs
and strong output performance
(up to 25 A RMS) guarantee that
the induction loop system remains
highly available.
Automatic Gain Control (AGC)
creates consistent field strength to
produce stable tone with outstanding
speech reproduction – even under
difficult acoustic conditions. The
integrated monitor output and the
corresponding measurement tech-
Sensitivity, phantom
voltage, balanced/
unbalanced and priority
can be separated
adjusted for each input
High availability, operating
reliability and quality
assurance
Convenient monitoring of
the magnetic field: Can
be done using headphones
or speakers
Treble control to
compensate for treble
losses due to reinforcement
LED display for mains
connection, input level
and induction loop
current
19” rack design
nology make it possible to test the
quality of the induction loop system
easily and conveniently.
11
Standard induction loop systems
An LOS system consists of two
HUMANTECHNIK service for
produce a magnetic field that
induction loop amplifiers that are
planning low-overspill systems
usually exceeds the »core service
operated out of phase. This con-
area«. This »overspill«, which travels
figuration prevents overspill and
horizontally and vertically, might
makes it possible to operate several
still be audible three to four loop
induction loop systems in adjacent
widths away. This limits the use of
rooms without having their signals
this technology.
interfere with each other:
Low-overspill systems
expand the application options
Low-overspill systems
(LOS): Induction loop
systems with low
overspill
of induction loop systems.
Low-overspill systems (LOS) considerably reduce »overspill«. They
use special loop patterns to reduce
the signal strength outside the loop.
For these patterns, two loops have
to be operated out of phase with
each other to achieve an equal
distribution of the desired signal
without creating any undesirable
signal-free areas.
No field strength reduction in
the centre of the loop due to
reinforced concrete,
Greater reproducibility of the
results,
Reduced danger of feedback
due to lower power consumption,
Each individually optimal customisation and configuration depends
on the conditions prevailing in the
area of application, in other words,
on the room floor plans and the
sizes of the coverage areas, the
number of internal loops and the
demands made on low overspill.
Determining the corresponding
values for the »customised« lowoverspill layout and the optimal
level adjustments in each case is
based on a complex method of
calculation and installation. That’s
Extremely low overspill at re-
why we strongly recommend
duced directional sensitivity.
that you take advantage of the
ser­v ices offered by HUMANTECHNIK. We provide competent
support to architects, technicians
and installers in planning LOS
installations.
The overspill
of standard
induction loop systems
works in a horizontal
and vertical direction.
The resulting »eavesdropping effect« is
often still measurable
over distances of up
to three induction loop
widths.
Low-overspill systems
(LOS) that are competently customized and
configured reduce overspill considerably to allow
the operation of induction
loop systems in directly
adjacent rooms.
12
PROLOOP LOS
Technical data
Mains connection: 230 – 240 V AC, 50Hz, 25 – 700 W
Coverage: 300 m² acc. to IEC 60118-4
Induction loop output
Max. power: 60 A from peak to peak, 1-5ms, 1 kHz, 2 x 13 A RMS,
continuous 1 kHz, short-circuit-proof
Max. voltage:
47 V from peak to peak
Output AGC: Sets voltage and power for steady signals like
oscillation and sine curves after 0.6-1 seconds
to -10 dB. Short pulses and normal program signals
are not limited.
Frequency range: 100 – 5000 Hz (±3 dB)
Distortion: <1%
Cable connection: 2 screw connections on rear panel of the amplifier
Outputs
Master OUT: 0 dBm, RCA (with AGC function)
Slave OUT: 0 dBm, RCA (with AGC function)
Inputs
IN 1: Combined XLR / 6.35 mm connector
MIC sensitivity 2.5 mV – 10V RMS / 10 kOhm,
LINE sensitivity 37 mV – 10V RMS / 10 kOhm
or phantom voltage 9 – 20 V
IN 2: Dual RCA connections, 45 mV – 10V RMS / 10kOhm
IN 3: Dual RCA connections, 45 mV – 10V RMS / 10kOhm
AGC
Dynamics: > 70 dB
Rise time: 2 – 500 ms
Fall time: 0.5 – 20 dB/s
Rise and fall times depend on the currently active channel
Controls and displays
Loop setting: 0 – 300m² (with one potentiometer each for
master and slave outputs)
Input level: IN 1 and IN 2 can be adjusted separately
Displays:
Mains connection:
1 green LED
Input level: 1 green LED
Induction loop power: 2 green LED
Induction loop monitoring
Two 6.3 mm jacks for headphone connection
Enclosure
Dimensions: 88 x 438 x 280 mm (H x W x D)
Colour: Black
Weight:
9.3 kg
PROLOOP LOS
Order No.: A-4252-0
The PROLOOP LOS is a complete
system for the operation of lowoverspill systems. It includes the
complete range of electronics required in a single enclosure. Thus,
there is a flexibly sized, reliable
low-overspill solution available to
serve neighbouring event rooms
Induction loop
amplifier system
for low-overspill
installations
Uniform coverage throughout
the room (no dead spots in the
middle of the room)
No signal fluctuations when
hearing-aid user moves
his/her head
Reduced sensitivity
to architecture-related
magnetic fields
and assembly halls up to 300
High efficiency, low power
consumption
square metres in size.
19“ design
The system is equipped with Automatic Gain Control (AGC) to produce
stable sound with outstanding
speech reproduction, even under difficult acoustic conditions.
Well suited for retrofitted
installation in theatres,
cinemas, concert halls,
schools, conference rooms,
housing, etc.
(Possible for floor
reconstructions only)
The integrated monitor output for
the corresponding measurement
technology makes it possible to
easily and conveniently test the
sound quality of the induction loop
system.
13
»Induction loop
receiver« and
accessories
LPU-1: Induction loop receiv-
a wide variety of different listening
er / Under-the-chin receiver
components, such as an under-the-
Order No.: A-4276-0
The LPU-1 takes the signals transmitted by the induction loop system
directly to the ears of people who
do not wear hearing aids. The ear
buds of the featherweight, ergonomically designed under-the-chin
receiver can swivel to stay firmly
fixed in the user’s ears even when
he/she moves his or her head. The
flexible material used to make the
ear buds also nestles gently into the
auditory canal to effectively subdue
any ambient noise.
Silicone earpieces for LPU-1
under-the-chin receivers
(also for RCI-102, InfraLight
and RadioLight)
Standard
Order No.: A-4985-0 (2 sets)
Order No.: A-4987-0 (24 sets)
Tapered shape
Order No.: A-4988-0 (2 sets)
Order No.: A-4989-0 (24 sets)
Perforated
Order No.: A-4993-0 (2 sets)
Order No.: A-4992-0 (24 sets)
14
LPU-1: Technical data
Sound frequency
transmission range: 70 - 5400 Hz
Distortion factor: < 1 %
Signal-to-noise ratio: Typ. 60 dB
Battery charging time: Approx. 6 h
Operating time: Approx. 6 h
Maximum volume: Approx. 120 dBA
Weight: 47 g
»PR-20+« combined receiver
Bestell-Nr.: A-4036-0
The »PR-20+« (with AGC, Automatic
Gain Control) is equipped with two
receiver modules a) for induction
loop signals and b) for infrared
signals. The 3.5-mm audio input
jack makes it possible to connect
chin receiver, ear or headphones,
a teleloop or a direct cable to a
hearing aid or CI system.
CRESCENDO 50
5-bay recharger for the
PR-20+ combined receiver
Order No.: A-4972-0
Single recharger for the
PR-20+ combined receiver
Order No.: A-4971-0
Order No.: A-4202-0
The universal CRESCENDO 50
audio amplifier, which was specially
designed for dialogue situations,
12-battery recharger for the
A100 battery
Order No.: A-4974-0
can also be used as a pocket receiver for induction loop systems.
An under-the-chin receiver serves
as the listening device.
A100: Additional battery for
the LPU-1
Order No.: A-4970-0
Aluminium case designed
to accommodate up to
15 receivers
Order No.: A-4072-0
The tray in the case provides for the
safe and reliable storage and transport
of up to 15 LPU-1, RCI-102, InfraLight
or RadioLight receivers. In addition,
Single-bay recharger for the
LPU-1
Order No.: A-4977-0
When the LPU-1 is not in use, it
can be placed into the recharger
to recharge.
the induction loop receivers can also
be conveniently distributed »straight
from the case«.
Plastic tray for 5
under-the-chin receivers
Order No.: A-4955-0
Safe-transport storage system –
5-bay recharger for
which can be used in the A-4072-0
the LPU-1 under-the-chin
case, for example – for receivers
receiver
from the InfraLight, RadioLight and
Order No.: A-4976-0
LPU-1 series.
»General accessories
for induction loop
systems«
XLR(M) adapter cord -->
3.5 mm cinch
Order No.: A-4933-0
e.g. to connect to CD players or
stereo systems
Induction loop pad
(description, see p. 9)
Table microphone with
PROLOOP FSM: Measuring de-
XLR plug connection
vice for induction loop systems
Order No.: A-4495-0
needs 2 AA batteries
Cinch connection cord
Order No.: A-4906-0 (length: 3 m)
Order No.: A-4907-0 (length: 6 m)
Order No.: A-4291-0
The PROLOOP FSM is a mea­
suring device that measures the
magnetic field strength of induction loop systems according to
IEC 60118-4:2006 and BS 6083,
Order No.: A-4910-0
Para. 4. The device is designed
for professional use and delivers
reliable RMS values on the output
level, response frequency, AGC
function (Automatic Gain Control),
distortion and background noise
in the induction looped tested.
In addition, it enables the user to
make an acoustic evaluation of the
sound using signal reproduction
via earphones.
XLR(M) --> 6.3 mm plug
Order No.: A-4939-0
Connection of 1- (UHF101) or 4-channel (UHF401) microphone systems.
XLR(F) --> 3.5 mm plug
Order No.: A-4934-0
For the connection of the table microphone to the LA-90 or LA-215.
XLR connection cord
Order No.: A-4935-0 (length: 2 m)
Order No.: A-4936-0 (length: 6 m)
Copper ribbon cable,
50-metre roll
Order No.: A-4937-0
21x0,4 mm – insulated
Features
Compliant with IEC 60118-4:006 and BS
for testing equipment used to evaluate
induction loop systems.
True RMS: 125 ms average time
Crest factor: 3
A filter
Measuring range:
+6 dB ...-51 dB (0 dB = 400mA/m)
Power supply: 2 x 1.5V AA batteries,
long battery life
Battery status control via LED
Headphone jack with volume control
Wireless PLL microphones,
1- or 4-microphone systems –
also recommended as an audio
source for infrared transmission
systems (see p. 18 ff).
(Description, p. 25)
15
How does an infrared audio
for certain large professional
Advantages of infrared
transmission system work?
applications.
transmission technology
An IR audio transmission system
This applies in particular to venues
consists of at least one transmitter
and facilities, ...
and one receiver. The transmitter is
connected to an audio source – to a
microphone system, for example –
and transmits the signals received
in the form of infrared light impulses
wirelessly to the receiver, which
converts the light impulse received
»Function and
use of infrared
transmission
systems«
into electrical audio signals and
feeds them into the reproduction
device connected – into headphones, for example, or a teleloop
for the inductive direct transmission
to hearing aids.
Areas of application
to the receivers of the
transmission system. The
transmitter’s large signal
emission angle or the wide
signal dispersion and the
reflection from walls, ceilings and floors guarantee
reliable reception – for
the most part, even when
smaller obstacles (furniture
or pillars) block the direct
»line of sight« between
the transmitter and the
receiver.
16
there plays a decisive role,
for example in courtrooms or
conference rooms,
and areas, ...
... in which several transmission
reduces reception to the room
in which the transmitter is
installed.
Transmission is reliable and
absolutely free of the interference caused by electromagnetic fields or structural
elements in the building, such
systems are operated parallel
as metal reinforcements. In
to one another in neighbouring
addition, these systems do not
rooms, such as in multiplex
produce any electromagnetic
cinemas or in living quarters
emissions themselves.
in social facilities.
Infrared transmission systems
In addition, infrared audio transmis-
can be used easily in many dif-
sion systems have proven valu-
ferent countries; an »obligation
in which the wireless reception of
able in schools and universities,
to register« them, similar to the
audio signals via infrared light has
in large auditoriums with partial
allocation of radio licenses, is
long since become a popular alter-
signal cover­age or in city centres,
not required.
native to the corresponding radio-
in which there is a very high rate of
frequency transmission systems,
radio-frequency emissions.
to all other transmission principles
»infrared signal route«
the information exchanged
pass through walls, which
Apart from the home environment,
this technology proves superior
The transmitter sets up an
... in which the confidentiality of
Infrared light signals cannot
Coverage
While the range of systems designed for private use is limited
Other factors affecting infrared
Light-coloured floor, wall and
transmission technology:
ceiling areas reflect infrared
energy more strongly. This can
The transmitter does not focus
increase the reception range.
to about 10 or 20 metres, high-
the emission of the infrared
powered infrared transmitters are
light impulses, i.e. it uses a
able to provide coverage for much
very large transmission angle.
ceilings and walls absorb the
larger rooms. The transmitters
As a result, there is generally
energy and can limit reception
described in this product overview,
no need for a specific »line of
ranges as a result.
for example, are able to provide
sight« between the transmitter
coverage for up to 2600 m².
and the receiver.
Other characteristics of infrared
audio transmission systems:
Portable/mobile systems are
available.
Multi-channel operation pro-
The carrier frequencies of 2.3
to 3.8 MHz (basic band) mini-
The signals do not only travel
mize the probability of interfer-
directly between the transmit-
ence resulting from powerful
ter and the receiver, but are
lighting. However, functional
also reflected from the walls,
problems due to direct sunlight
cei­lings and floors. Neverthe-
cannot be ruled out altogether.
less, pillars and furniture –
vides for flexible use, making
depending on their size and
it possible to simultaneously
position – can interfere with or
transmit several different lan-
even block reception under
guages, for example.
certain conditions.
Receivers are compatible with
Dark, low-reflection floors,
In order to provide coverage
for areas that exceed the maximum range of the individual
transmitters, it is necessary to
install several transmitters at
In any case, a technically
TV listening system for at-home
correct, precise positioning
use.
of the transmitters is
Reliable, inconspicuous
audio transmission for
rooms up to 2600 m²
in size
different locations and connect
them in parallel.*
required for optimal signal
coverage.
The signals are transmitted to the hearing aid via
a special infrared receiver
with audio amplification
equipped with a teleloop
(induction).
If the receiver is equipped
with an audio output
jack, it is also possible to
use headphones or earphones.
Amplifying infrared audio
receivers are available as
pocket devices, underthe-chin receivers, headphones with reception
diodes or in the LR version
with a teleloop and audio
output.
* If the reception range is the main criterion for the application in this context, it is advisable to consider the use of a radio-frequency system
as an alternative – also taking into consideration the cost factor (p. 28 ff.).
17
WIR TX9
High-powered
infrared
transmitter
WIR TX9 transmitter
Order No.: A-4030-0
The TX9 infrared transmitter uses a
wide emission angle and a typical
roughly circular geometry (see
diagram below) to send signals into
the room. The operating bandwidth
of 2.3 to 3.8 MHz guarantees interference-free operation, unaffected
by the extraneous light from other
portions of the spectrum.
With a signal coverage of 2600 m²
in one-channel operation, the TX9
can also be used in large rooms.
The connection of additional
TX9 transmitters increases or
multiplies the reception range.
The system comes with a mounting
Technical data
Dimensions (H x W x D): 15.9 x 28.6 x 5.4 cm
Weight: 900 g
Colour: Black with white text, black acrylic faceplate
Power supply: 24 VAC, 50 – 60 Hz, 35 VA,
3-pin MOLEX connector (each WIR TX9 requires its own power supply)
Mains connection: NEC class 2-wire, max. length: 61 m
Europe: TFP 027-01, safety plug, 2-pin, CE
Great Britain: TFP 027-02, 3-pin-UK plug, CE
Displays: Voltage: green / basic band: red
Carrier frequency: 50 kHz to 8 MHz
IR transmitter power: 3.5 W
Reception range/coverage areas:
2600 m² in 1-channel mode with RX22-4 receiver
1700 m² in 2-channel mode with RX22-4 receiver
325 m² in 1-channel mode with the RCI-102 receiver
Basic band input: BNC, 100 mV per carrier, 50 Ω
(for the WIR TX9 or MOD 232 only)
Basic band output: BNC, 50 Ω (for the TX9 only)
Basic band cable: RG 58 coax, BNC plug, max. length: 300 m
Ambient conditions:
0 – +50 °C ambient temperature (non-condensing, non-corroding environment)
Installation types: Wall or ceiling mounting: BKT 024 installation kit
SS-11 or SS-6 microphone stand set
Certifications: CE, FCC, ROHS, WEEE,
kit for the wall and ceiling.
Stands are also available for freestanding installation.
The TX9 is not equipped with
Reception range for the TX9 transmitter in 1-channel mode (depends
on receiver)
a modulator function, which
RX22-4 receiver
means that the separately avail-
RCI-102 receiver
able MOD 232 modulator is
required to connect the system
to the audio source and to
process the signals.
18
The transmission energy of infrared transmission systems spreads out in a
roughly circular shape with a wide emission angle.
MOD 232
Technical data
Dimensions (H x W x D): Weight: Colour: Rack assembly: Power supply: Modulation: Carrier frequency: Signal-to-noise ratio: Frequency response: Harmonic distortion: Audio processing: Switchable compression
amplification: Audio input:
Microphone level: Line level: Audio line output: Basic band input: Basic band output: Automatic shutoff: Certifications: Ambient conditions:
»MOD 232« modulator
4.4 x 21.5 x 20.8 cm
1500 g
Black with white lettering
1/2 rack unit in width, 1 rack unit in height; with
RPK 005 (simple) or RPK 006 (double) installation kits either one or two modulators can be installed in
one IEC rack.
24 VAC, 50 – 60 Hz, 15 VA
Europe: TFP 027-01, safety plug, 2-pin, CE
Great Britain: TFP 027-02, UK plug, 3-pin CE
FM broadband, ± 50 kHz deviation,
50 uS pre-distortion
Channel A: selectable 2.3 / 2.8 / 3.3 / 3.8 MHz
Channel B: selectable 2.3 / 2.8 / 3.3 / 3.8 MHz
> 60 dB
30 to 16000 Hz + 1 dB, -3 dB
Less than 2 %
Compression (rising) adjustable from 1:1 to 4:1
Moderated16 dB; max. 33 dB
2xCombo XLR or 6.3 mm cinch plug
Symmetrical, Lo-Z, 100 µV min. to 90 mV max., 1 mV nominal,
3 kΩ input impedance, delivers switchable neutral current
according to DIN 45596 for condenser microphones
Symmetrical or asymmetrical, 21 mV min. to 10 V max., 212 mV nominal, 100 kΩ
RCA jack, channel A and channel B, 500 mV,
asymmetrical, 100 Ω source impedance (load impedance
must be larger than 1 kΩ)
BNC, allows mixing with additional modulator
MOD 232 (4-channel mode), 100 mV,
50 Ω input impedance
Two BNC jacks lead the basic band signal,
100 mV / channel, 50 Ω source impedance, to be used
exclusively with WIR TX9 or MOD 232
Switches off after 30 signal-free minutes
CE, FCC Section 15, Industry Canada, AS
0 – +50 °C ambient temperature (non-condensing, non-corroding environment)
Order No.: A-4029-0
Modulator for
the operation of
the WIR TX9
transmitter
The MOD 232 Modulator is connected to the audio source. It processes these signals and sends them
to the transmitter. The transmitter
then converts this data into infrared
light impulses and sends them out
at a wide angle into the room to be
provided with coverage.
Conferences are often plagued by
limited acoustic quality. That’s why
the MOD 232’s audio-processed
signals focus on speech frequencies for well-balanced good reproduction and reduce undesirable
background noise. As a result,
people can listen to longer lectures
and events without tiring.
Like the TX9 transmitter, the MOD
232 modulator also includes an
installation kit for wall and ceiling
mounting.
19
If we consider the TX9 transmitter and the MOD 232 modulator
TX9 and MOD 232: 2-channel configuration
(description: pages 18 and 19)
as a modular system, it offers not
only easy expansion with respect
TX9
to the audio coverage (also see
r
mitte
trans
diagram, p. 21). It also presents
new prospects for greater application flexibility.
TX9 transmitter and
MOD
MOD 232 modulator: the
Configuration
examples for audio
using infrared
transmission systems
Typical applications:
Simultaneous transmission in
tor
dula
mo
232
standard configuration
The MOD 232 modulator serves as
the »interface« between the audio
urce
io so
o On
Audi nels A
Chan nd B
a
Aud
source and the infrared transmitter. The standard configuration
allows one as well as two-channel
operation.
different languages
Media rooms
Courtrooms
TX9 transmitter and MOD 232
modulator as a 4-channel system
Theatres
Using the components as a 4-chan-
Churches
nel transmission system requires
Educational facilities
two MOD 232 modulators and two
TX9 and MOD 232 in 4-channel operation
TX9
WIR TX9 infrared transmitters. This
combination presents high flexibility
for a wide range of applications at
an attractive price – particularly in
itter
ansm
tr
TX9
nd
c ba
Basi l
a
sign
areas that require the simultaneous
provision of information in several
different languages.
In four-channel mode and using
itters
m
trans
onal ary)
i
t
i
d
to ad necess
(if
the four-channel RX22-4 receivers
(see p. 22), the transmission system is able to provide coverage
MOD
232
32
OD 2
M
mo
WCA
068
configuration.
nd
c ba
Basi l
a
sign
stationary installation (e.g. 19” IEC
up and convenient operation.
20
urce
io so
o On
Audi nels C
Chan nd D
a
Aud
The components can be used as a
as a portable system with easy set-
r
ulato
mod
tor
dula
for approx. 1000 m² in its standard
rack mounting for the modulator) or
r
mitte
trans
io
Aud
ce
sour
o On
Audi nels A
Chan nd B
a
WIR TX90
Technical data
Dimensions (H x W x D): 15.9 x 28.6 x 5.4 cm
Weight:
800 g
Colour: Black with white text, black acrylic faceplate
Power supply: 24 VAC, 50 – 60 Hz, 35 VA,
3-pin MOLEX connector
Mains connection: NEC class, 2-wire, max. length 61 m
Europe: TFP 027-01, safety plug, 2-pin, CE
UK: TFP 027-02, 3-pin UK plug, CE
Modulation: FM wideband, + 50kHz
Carrier frequency: Channel A: 2.3 / 2.8 MHz (selectable)
Channel B: 3.3 / 3.8 MHz (selectable)
IR transmission power: 3.5 W
Audio input:
Symmetrical or asymmetrical line level only, 316 mV RMS
5.7 kW input impedance
Reception range / coverage areas:
2600 m² in 1-channel mode with the RX22-4 receiver
1670 m² in 4-channel mode with the RX22-4 receiver
325 m² in 1-channel mode with the RCI-102 receiver
Desired signal /
background noise: >75 dB / +3 dB
Response frequency: 80 to 15000 Hz, electrical
Compression: Music 1:1
Speech 1.5:1
Hearing aid 2:1 (default setting)
Automatic shutoff:
Switches off after 20 signal-free minutes
Main TX90
system
TX9
The two-channel TX90 infrared trans-
Two-channel highpowered infrared
transmitter
with an integrated
modulator
mitter combines the modulator and
Possible areas of application:
WIR TX90 transmitter
Order No.: A-4028-0
transmitter as one unit in a single
Cinemas
enclosure. This design saves money
Parallel transmission
of different languages
(channel selection)
and does not take up a lot of room
during transportation.
The TX90 transmitter uses a wide
angle for the efficient emission of
the infrared signals into the room to
be provided with coverage.
Conference and meeting
rooms as well as multimedia
rooms
Courtrooms and lecture halls
Schools, universities
Churches
With an operating bandwidth of
2.3 to 3.8 MHz, the transmission
of the TX90 is reliable and immune
to the effects of extraneous light.
In 1-channel mode, the transmitter is able to cover up to 2600 m².
With the addition of another TX9
transmitter, it is possible to easily
expand the reception range. The
system includes an installation
kit for wall and ceiling mounting.
Stands for freestanding installation
are also available.
TX9
TX9
The reception area can be multiplied by connecting several transmitters –
here a TX90 with three TX9.
21
RX22-4
Four-channel
infrared receiver
Possible areas of application:
Selective reception of
simultaneously transmitted
information, e.g. in different
languages
RX22-4 infrared receiver
Order No.: A-4032-0
The RX22-4 is a portable four-
Conference and meeting
rooms as well as courtrooms
channel infrared receiver (pocket
Multimedia rooms
strap around the neck. The receiver
Educational facilities,
e.g. schools, universities
is compatible with all transmitters
Cinemas, theatres
Churches, assembly rooms
receiver), which can be worn on a
that operate at frequencies from
2.3 to 3.8 MHz.
The receiver is easy and convenient to use. It is limited to just two
operating elements: a knob for the
combined on/off/volume function
and a four-stage switch for channel
selection. The selective channel
setting allows the listener to select a
language, for example, for simultaneously interpreted information.
The RX22-4 is equipped with a
connection jack that can be used
to connect either headphones or a
teleloop. Dual IR reception diodes
guarantee maximum reception
sensitivity within the transmission
zone.
Technical data
Type of receiver/design: Dimensions (H x W x D): Weight: Colour: Carrying strap: Operating temperature: Battery type: Battery life: Charging contacts: Carrier frequencies: Linear pre-distortion: FM deviation: Signal-to-noise ratio: Noise limiter: Response frequency: Harmonic distortion: Operating elements: Operating display: Audio output:
Audio output power: Acoustic output: Sensitivity:: Certifications: Pocket receiver with dual reception diode,
carrying strap (can be worn around the neck)
104.1 x 72.4 x 30.4 mm
127 g, incl. batteries
Black
91 cm
-10 °C to +50 °C
2 x AA, Alkali or NiMH
Alkali: 60 h / NiMH: 30 h
For the CHG 3512 only
Channel 1: 2.3 MHz
Channel 2: 2.8 MHz
Channel 3: 3.3 MHz
Channel 4: 3.8 MHz
50 µsec.
±50 kHz
60 dB min.
Receiver cuts off at 40 dB S/N
25 Hz to 16 kHz, +1 dB , -3 dB, electrical
< 1%, electrical
On/off/volume: combined knob
Channel selection: four-stage switch
LED constant, flashing indicates low battery
3.5 mm (mono)
Max. 15 mW at 32 Ω
125 dB SSPL90 with HED 021; 110 dB SSPL90 w / EAR 013
Better than 1 nW/cm² for 40 dB signal-to-noise ratio
CE, FCC, ROHS, WEEE
Teleloop * (mono) 1.14 m
Order No.: A-4928-0
HED 021 headphones
Order No.: A-4913-0
Neck loop for use with RX22-4
»Deluxe« headphones for adults:
receiver or PR-20+ combined
3.5 mm plug to connect to the
receiver
RX22-4 infrared receiver, 1 m
Teleloop * (stereo) 1 m
cable
Order No.: A-4927-0
Neck loop for use with PR-20+
combined receiver
* Inductive audio transmission to hearing aids or CI systems with a T-coil
22
Infrared receivers
compatible with all
infrared transmitters with
the operating frequencies
Two-channel infrared
under-the-chin receiver
RCI-102
Order No.: A-4043-0
The RCI-102 is an ergonomically
designed under-the-chin receiver
that weighs just 52 grams and is
equipped with swivelling earpieces,
which means that the earpieces
retain their position in the ear even
when the user turns his/her head.
The flexible material used to make
the ear buds also nestles gently
into the auditory canal to effectively
subdue any ambient noise.
Technical data RCI-102
Weight:
Colour and material:
Rechargeable battery, battery life:
Modulation processes:
Sound frequency transmission range:
Operating frequencies:
Harmonic distortion:
Signal-to-noise ratio:
Controls:
Maximum volume:
Main switch:
»PR-20+« combined receiver
Bestell-Nr.: A-4036-0
The »PR-20+« (with AGC, Automatic
Gain Control) is equipped with two
of 2.3 MHz and 2.8 MHz
52 g with battery
ABS plastic, black and red
A100 NiMH battery, approx. 5 h
FM, mono or stereo
15 - 20000 Hz
2.3 MHz and 2.8 MHz
Possible selections: stereo reception or
either frequency for mono reception
<1%
Typ. 60 dB
Knob to adjust the volume;
Balance can be adjusted with the help
of a screwdriver
Approx. 120 dB
Integrated in the »receiver«
Single recharger for the
RCI-102 and InfraLight
under-the-chin receivers
Order No.: A-4977-0
Stereo or selective mono recep-
receiver modules a) for induction
tion, e.g. for multi-language
Recharger for one under-the-chin
loop signals and b) for infrared
transmissions.
receiver and two separate re-
signals. The 3.5-mm audio input
chargeable batteries.
The RCI-102 is equipped with a
switch to select the frequency
channels. Both channels are constantly active for stereo transmissions. If the event organizer uses
both the 2.3 MHz and the 2.8 MHz
jack makes it possible to connect
a wide variety of different listening
components, such as an under-thechin receiver, ear or headphones,
a teleloop or a direct cable to a
hearing aid or CI system.
Single recharger for the
different languages at the same
PR-20+ combined receiver
channel in his/her preferred lan-
PR-20+ combined receiver
Order No.: A-4972-0
Silicone earpieces for the
RCI-102 under-the-chin receiver*
Standard
Order No.: A-4985-0 (2 sets)
Order No.: A-4987-0 (24 sets)
frequency ranges to transmit in two
time, the listener can select the
5-bay recharger for the
Order No.: A-4971-0
guage and receive the information
Tapered shape
Order No.: A-4988-0 (2 sets)
Order No.: A-4989-0 (24 sets)
Perforated
in mono mode.
Order No.: A-4993-0 (2 sets)
Order No.: A-4992-0 (24 sets)
Case able to accommodate
up to 15 under-the-chin receivers – Description: p. 27
* also for the LPU-1 and InfraLight
23
InfraLight
Infrared
transmission
system for small
to medium-sized
rooms
System with transmitter and
two different types of receivers
With its compact transmitter and
two different types of receivers,
the InfraLight system provides
convenient audio solutions for
sound coverage using infrared
transmission signals in small to
medium-sized rooms. The receivers
are equipped with mono and stereo
sound as well as infinitely variable
volume control.
The InfraLight transmitter
Order No.: A-4022-0
The InfraLight transmitter is able
to recharge one receiver as well
as two rechargeable batteries.
Directed towards the receivers and
The InfraLight DIR underthe-chin receiver
Order No.: A-4042-0
FM, stereo or mono
2.3 / 2.8 MHz
15 - 20000 Hz
<1%
typ. 60 dB
Approx. 14 h
Approx. 3.6 VA
Transmitter 12 volts DC
Mains connection 230 volts 50 Hz
Approx. 170 g
Approx. 7 h
Approx. 120 dBA
55 g
Approx. 6-7 h
Approx. 120 dBA
56 g
The InfraLight LR receiver
with the teleloop
Order No.: A-4052-0
The InfraLight DIR under-the-chin
The InfraLight LR receiver is
receiver is equipped with earpieces
equipped with a teleloop that uses
that swivel to stay firmly fixed in
an induction system to transmit the
the user’s ears even when the user
TV sound directly to hearing aids
moves his/her head. The flexible
or CI systems via the integrated
The InfraLight transmitter includes
material fits snugly into the auditory
telecoil. It is also fitted with an audio
the transmitting unit with its power
canal to effectively subdue any other
output jack – to allow the connec-
supply and one rechargeable bat-
ambient noise (different silicone ear-
tion of headphones, for example,
tery to operate one receiver.
pieces available, see p. 23).
or for a cable connection to the
connected with an audio source, it
transmits signals over a range of up
to 12 metres to an unlimited number
of corresponding receivers.
Case able to accommodate up
to 15 under-the-chin receivers –
Description: p. 27
Technical data
Modulation processes:
Carrier frequencies:
Sound frequency transmission range: Harmonic distortion: Signal-to-noise ratio:
Battery recharging time: Transmitter
Power consumption: Power supply: Weight: InfraLight DIR under-the-chin receiver
Operating time depending on charge: Maximum volume: Weight: Receiver with InfraLight LR teleloop
Operating time: Maximum volume: Weight:
hearing aid.
24
Wireless UHF101 microphone
Order No.: A-4450-0
Wireless UHF401 microphone
Order No.: A-4455-0
The wireless UHF101 microphone
The 4-channel UHF401 micro-
set (PLL) can be used in combina-
phone system is designed for use
tion with any of the transmission
anywhere where up to four different
systems described in this brochure.
speakers talk from different loca-
The set consists of a handheld
tions, in churches, for example.
transmitting microphone and the
receiver that transmits the signals
via cable to the corresponding
audio output device.
Accessories
for Infrared
Transmission
Systems
Four independent handheld microphones transmit the voices
wirelessly to the stationary receiver,
which in turn feeds the signals via
cable into an audio output device,
such as an induction loop amplifier
or an infrared or a radio-frequency
Portable pocket transmitter
transmitter.
with PLL microphone...
... to be used with the
UHF101 set
Order No.: A-4460-0
Technical data for the UHF101
RF transmission frequency:16 frequencies in
the range from 863 to 864 MHz
Frequency stability: ±0.005 %,
PLL synthesized circuit
Modulation:
FM
Range:
Up to 100m
Distortion factor:
0.4%
Audio frequency
response:
60 to 21,000 Hz, -3dB
Technical data for the UHF401
RF transmitting frequency: 16 frequencies in the
range from 790 to 819 MHz
Frequency stability: ±0.005 %,
PLL synthesized circuit
Modulation:
FM
Range:
Up to 100m
Distortion factor:
0.4%
Audio frequency
response:
60 to 21,000 Hz, -3dB
Receiver
Reception type:
Noise suppression:
Audio output:
Power supply:
Receiver
Reception type:
Noise suppression:
Audio output:
Power supply:
Dual antenna, PLL
> 90 dB
XLR or 6.3 mm
DC 22V / 400mA
(AC/DC adapter included)
Transmitter
Transmission power: 10 mW
Power supply: Alkaline / NiMH batteries 2xAA
Operating time: 6 - 8 h
Dual antenna, PLL
> 90 dB
XLR or 6.3 mm /
Composite signal 6.3 mm
DC 22V / 1.2A
(AC/DC adapter included)
... to be used with the
UHF401 set
Order No.: A-4460-0
The handy transmitters can be worn
directly on the body. The speaker
then simply clips the microphone
to his/her collar to have both hands
free.
Transmitter
Transmitting power: 10mW
Power supply: Alkaline / NiMH batteries 2xAA
Operating time: 6 - 8 h
25
Accessories for
infrared transmission
systems
Under-the-chin receiver
(closed)
Order No.: A-4903-0
Dual recharger for the
RX22-4 infrared receiver
Order No.: A-4979-0
A100 batteries
Order No.: A-4974-0
Under-the-chin receiver weighing
Recharging station with two inde-
Time-saving recharger for users
less than 30 g, which can be con-
pendent recharging bays.
who operate a larger number of the
nected to the RX22-4 receiver and
the PR-20+ combined receiver
– with ergonomically shaped earpieces that fit snugly into the auditory canal
12-bay recharger for the
RX22-4 infrared receiver
Order No.: A-4978-0
receivers (InfraLight and RCI-102)
Replacement A100 battery
for RCI-102 and InfraLight
receivers
Recharging station with 12 independent recharging bays.
5-bay recharger for RCI-102
and InfraLight receivers
Order No.: A-4976-0
Recharger with 5 independent
recharging bays for the receivers.
26
12-battery recharger for
Order No.: A-4970-0
Accessories for
infrared transmission
systems
Aluminium case designed
to accommodate up to 15
under-the-chin receivers
Order No.: A-4072-0
The tray in the case provides for
the safe and reliable storage and
transport of up to 15 LPU-1, RCI-102,
InfraLight or RadioLight receivers. In
addition, the under-the-chin receivers
Stand to set up the TX9 and
TX90 infrared receivers
Order No.: A-4986-0
The adjustable stand is able to
accommodate TX9 and TX90
transmitters.
Pulls out to a maximum of 3 m
Maximum load 20 kg
can also be conveniently distributed
»straight from the case«.
Plastic tray case for 5 underthe-chin receivers
Order No.: A-4955-0
Case with 12-bay recharger*
Order No.: A-4195-0
Safe storage and reliable transport
of up to 12 RX22-4 infrared receivers incl. A-4978-0 recharger.
Transport-safe storage system – for
the MK-0016-0 case, for example
– for receivers from the InfraLight
/ RadioLight series and LPU-1 or
RCI 102.
* Batteries must be
ordered separately.
2 batteries per device.
Order No.: EG4601-0
27
RF transmission systems
Of all the wireless transmission
technologies, radio-frequency
transmission has been around for
the longest time. Not surprisingly,
then, it is also the most common,
and with respect to audio transmission systems for accessible sound,
it proves to be the most powerful
system with the largest ranges of
coverage.
Function and use of
radio-frequency
transmission systems
The basic configuration of a radiotransmission system consists of
a transmitter and at least one
receiver. The transmitter, which is
connected to an audio source – to
a microphone system or any other
signals to the hearing aid.
and independence from
tural structures, radiofrequency transmission
systems are also ideally
suited to open-air
applications.
Radio-frequency signals
are able to easily pass
through walls. The
listeners can leave the
room in which the
transmitter is installed
at any time without any
problem and their RF
receivers will continue
to provide them with the
information they need.
28
alternative to radio-frequency
headphones.
transmission.
Areas of application
Radio-frequency audio transmission
systems have already become
well established as wireless headphones or TV listening systems in
In addition to these stationary applications, portable, so-called tourguide systems have also proven
useful in many areas. Some of the
areas they can be used in include
the home environment.
museums, art galleries,
The systems described in this
tourist attractions and
brochure, however, go above and
beyond this, most importantly because they have been designed
special events
or transportation.
for professional applications – for
The availability and use of several
example:
channels makes it possible to
spacious event venues,
the inductive transmission of the
floor plans and architec-
can be connect to the earphones or
up the audio signals to transmit
with teleloops, which provide for
Due to their ability to
in particular, there is hardly an
in sport arenas or at other
The receivers can be equipped
and for open-air applications
output jacks are also available and
audio system, for example – picks
them wirelessly to the receivers.
provide large coverage
Amplifying receivers with audio
in churches and other
assembly halls,
in lecture or seminar rooms, as
in schools and universities,
pro­v ide different information at
the same time, for simultaneous
interpreting into different languages,
for example, or for the treatment
of different topics for several liste­
ning groups located close to one
another.
Outstanding features of
Sunlight, artificial light and
Some countries charge radio-
radio-frequency transmission
the reflection conditions inside
licensing fees for the use of
technology
rooms do not affect transmission.
these systems. In this context,
Transmitter and receiver do not
RF transmission systems are
require a direct »line of sight«.
easy and convenient to use,
Radio waves can pass easily
they are very portable and,
through normal house and
with multi-channel functionality,
building walls. Listeners take
they are very flexible in their
the sound along, even when
uses and applications.
they leave the room in which
the transmitter is installed.
This means that even very
large areas can be easily
supplied with audio signals.
It is relatively easy to install RF
transmitters, which also makes
it inexpensive. The costs for
installation and hardware do
not increase in proportion to
the size of the area that
requires coverage.
The transmitters can be
Coverage
With respect to coverage, RF
transmission systems are far superior to the two other transmission
technologies described in this
brochure.
countries only release certain
frequency ranges for these
systems (different from the
standard).
More useful information on
the use of radio-frequency
transmission systems
Users of audio radio-frequency
transmission systems should
be aware of the fact that the
coverage ranges or the signal
scattering go beyond the
than 300 metres, it is possible to
intended coverage areas. As
easily supply even large arenas
a result, there is no guarantee
with audio signals. The trans-
that the information transmitted
mission distances of tour-guide
will remain confidential.
systems with approximately 30
metres makes it possible to supply
information even in large groups or
(except in metal enclosures)
groups in different locations.
overall architectural picture.
national regulations in some
With coverage ranges of up to more
installed inconspicuously
and do not mar or spoil the
it cannot be ruled out that the
When planning the parallel
use of this type of system – in
neighbouring rooms, for example – the transmission must
Factors influencing the
be made on different channels
operation of radio-frequency
(compare the number of chan-
transmission technology
nels available with the number
Other RF systems or
An attractively
priced, functional
solution designed
to provide large
areas with audio
signals
of channels required).
electromagnetic emissions
could have a negative effect
on transmission and signal
quality.
Users must make sure that
their transmission channels
are set correctly.
29
Mobile 2.4 GHz
transmission
system with up to
15 simultaneous
channels
Digi-Wave™ is a mobile digital
radio communication system with
a transmission frequency of 2.4
Digi-WaveTM
GHz. Elegant and streamlined in
design, lightweight and easy to
Digi-Wave™ at a glance:
The basic devices for a Digi-Wave
communication systems are
the transmitter/receiver unit
operate, Digi-Wave™ is suitable for
DLT 100 for 1 or 2-way com-
applications from a simple dialogue
munication
system to complex configurations
in master-slave hierarchies - in
addition to use in audiologically
the receiver DLR 50 for 1-way
applications.
demanding areas also as a com-
Based on the minimum configura-
fortable:
tion with two devices, of which
interpreter system
tour guide system or
team teaching system (teaching and conference system)
The respective DigiWave system is provided pre-configured
accordingly so that it is
available immediately to
the user without additional
programming or configuration
at least one is a DLT 100, there
are virtually unlimited options for
www.AUDIOropa.com
30
interference from other devices
Can be globally used: 2.4 GHz
transmission corresponds to
the technical requirements in
most countries of the world
Up to 14 hours operating time
per battery recharging for DLT100 systems
Ranges: up to 30 m outdoors
and up to 60 m indoors*
Microphone and loudspeaker
extending it with transmitter and
integrated (transmitter/receiver
receiver units.
unit DLT 100)
Simultaneous use of up to
Audio connection terminals for
15 separate channels for
headsets and/or headphones
simultaneous voice transmission between transmitter and
any number of receivers (interpreter service)
Certified pursuant to FCC, CE
and C-Tick
2-year guarantee
Simultaneous use of up to
effort. At the press of a button
4 channels for bidirectional
the users (DLT-100 masters)
communication. This means
can switch from unidirectional
that 4 groups can communi-
to bidirectional group commu-
cate at the same time close
nication.
to one another via their own
channels.
Detailed information can be found at:
Patented procedure to reduce
* depending on respective room
and building layouts
DLT 100
Digi-WaveTM
transceiver device
Transceiver DLT 100
in one device. The dialogue is
phone, teleloop/induction plate,
controlled via the DLT 100 that is
microphone. The DLT 100 also
Ideal for dialogue applications,
freely defined as a master in each
has an integrated microphone
for instance in teaching use with
case. Each participant can equip
and an internal loudspeaker and
hearing-impaired persons, the
the device with the receiver and
as a fundamental principle can
Digi-Wave™ DLT 100 combines
microphone components that he
also be operated without external
transmitter and receiver function
or she requires: headset, head-
components.
Order No.: A-5020-0
Technical data: Transceiver DLT 1000
Dimensions
103 x 62 x 11mm (4.1 x 2.4 x 0.4 inches)
Weight
80g (2.8 oz) including battery
Color
Black and silver
Enclosure
Shatter resistant PC/ABS plastic
Battery type
Li Polymer with smart charge built into transceiver
Battery life
Up to 14hrs talk time per charge
Charge time
5 hrs. TFP 044 with cable and international adapters
Optional two-bay charger CHG 102
Channels
Up to 15 simultaneous channels (Interpretation mode) / up to 4 simultaneous groups
Operating Frequency
2.4 GHz (ISM band) 2.402 – 2.476 GHz FHSS
Frequency response
150 – 11 KHz
S/N ratio
69 dB (A weighted)
THD
0.33 %
Microphone input
Internal microphone (disabled when MIC jack engaged) and 3.5mm stereo jack (tip/sleeve) with electret
microphone bias, adjustable gain with 63dB range
Audio output
Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041)
Internal speaker (disabled when ear jack engaged) 16mW @ 33Ω
Range
Up to 100 ft outdoors and 200 ft indoors
Modulation
GFSK, binary CDMA
RF output
14 dBm Max
Security code
87 bit encryption
Controls
Front panel push buttons for volume up/down, group select, menu access and selection, voting, timer, time, MIC on/off and power on/off. System reset button (rear panel)
Output
3.5mm mono jack, 30 pin charging jack with audio out to base stations
Side tone
-12dB below volume
Speaker
Internal speaker (disabled when ear jack is engaged)
Indicators
LCD (Group, channel, volume level, battery status, mode, signal strength), LED’s (charge status, voting) red LED around talk button when enabled, amber LED signifying voting feature activated.
Maximum presenters
Two presenters at any given time
Approvals
FCC, Industrie Canada, CE, C-tick, RoHS, WEEE
Warranty
2 years parts and labor (90 days on accessories)
Always as flexible as
the communication task
requires ...
... from the personal
dialogue system with
a DLT 100 to complex
team teaching and
conference applications
Huge audio amplifi­cation
with high purity of sound
for clear understanding,
even in noisy environments
31
DLR 50
Digi-WaveTM
radio receiver
DLR 50 radio receiver
Order No.: A-5030-0
The handy Digi-Wave™ radio
receiver DLR 50 in cheque card
format – a lightweight that can be
comfortably worn on a cord.
With the DLR-50 receiver, the audio
transmissions can be received
by one or more Digi-Wave™DLT 100.
Integrated in typical unidirectional
applications, such as presentations
or person guide systems with small
and large groups, the DLT 50 offers hearing-impaired participants
superb understanding with regard
to volume (freely selectable) and
sound.
Technical data: DLR 50 receiver
Dimensions
85 x 55 x 16mm (3.35 x 2.16 x 0.63 inches)
Weight
42g (1.5oz) not including batteries
Color
Black
Enclosure
Shatter resistant PC/ABS plastic
Battery type
2 x AAA
Battery life
Up to 24hrs (Alkaline)
Channels
Up to 15 simultaneous channels (Interpretation mode)
Up to 4 groups simultaneous (bidirectional)
Operating frequencies
2.4GHz (ISM band) 2.402 – 2.476GHz FHSS
Frequency response
150 – 11KHz
S/N ratio
65dB (A weighted)
THD
0.45 %
Audio output
Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041)
Headphone output
12mW @ 33Ω
Range
Up to 100ft outdoors and 200 ft indoors
Modulation
GFSK, binary CDMA
Security code
87 bit encryption
Controls
Front panel push buttons for volume up/down,
group select and power on/off.
Output
3.5mm mono jack
Speaker
Internal speaker – disabled when ear jack is engaged
Indicators
LCD (Group, volume level, low battery, mode)
Approvals
FCC, Industrie Canada, CE, C-tick, RoHS, WEEE
Warranty
2 years parts and labor (90 days on accessories).
Each participant can equip the
The DLR 50 also has an internal
device with the audio components
loudspeaker and can in principle
that he or she requires: head-
also be used without external
phone or teleloop or induction plate
components.
(inductive hearing with of hearing
aids or CI systems with t-coils).
32
DigiWaveTM
the components
For the highly flexible configuration
DigiWave DLT 100 transceiver unit
A-5020-0
of system sets, in accordance with
DigiWave DLR 50 receiver
A-5030-0
diverse tasks and group struc-
Recharging device CHG102 for 2 DLT 100
A-5910-0
Loudspeaker SPK 024
A-5160-0
Headphone mono EAR022 for DLR 50
A-4924-0
tures, the Digi-Wave™ programme
offers a clearly arranged number
of components. In addition, all
teleloops and induction plates of
the HUMANTECHNIK programme
can be connected.
Suggestion for configuration
Headset MIC 044 2P for DLT 100
A-4482-0
Plug-in microphone MIC 014-R A-2976-0
Silicon case with lanyard CCS044 for DLT 100
A-5900-0
Carrying bag CCS043 for 2 DLT / DLR A-5984-0
Case CCS030DW for 12 DLT and accessories
A-5981-0
Case CCS029 for 6 DLT and accessories
A-5980-0
DLT 100 + DLT 100 + (DLT 100 and/or DLR 50): One teacher presents alone or together with a second, optionally
with unidirectional or bidirectional communication with the participants.
Both teachers hear one another, just as the listeners hear both speakers at the same time. Listeners with the
transmitter/receiver unit DLT 100 can also enter into dialogue with the speakers (questions and answers). The configuration permits free requirements-oriented integration of DLT-100 and DLR-50 systems. (Teacher 1 1. Priority /
Teacher 2 2. Priority / Listener 3. Priority).
IC-2
Teacher 1
(Master)
Teacher 2
(Slave)
A-5100-0
Stationary control system for
interpreter applications
DLT 100
DLR 50
Pupils (Slaves)
The IC-2, a supplementary system
for Digi-Wave, provides all functions
for comfortable transmission control
with simultaneous translations in one
or more languages. As a stand-alone
unit, it permits one or two interpreters
to monitor and control the original
speaker and the relay intervals in the
interpreter team.
The control unit is also compatible
with other mobile or stationary
radio and infrared transmission
systems of the HUMANTECHNIK
programme (further information:
phone +49 76 21 - 9 56 89 -0).
33
The portable
3-channel transmission system
T863 transmitter
The minimum configuration of a
three-channel audio RF system
Convenient radio-frequency
with compact, easy-to-use trans-
transmission system for
mission and reception compo-
guided tours
nents includes a transmitter (T863)
simultaneous selective
with a microphone and a receiver
transmission of different
languages
clear understanding,
even in noisy environments
(R863).
This system can be used as a
tour-guide system and allows
or under other unfavourable
simultaneous transmission in mul-
acoustic conditions
tiple languages with three different
frequency channels. Audio signal
processing puts emphasis on the
voice frequencies rather than on the
annoying background noise.
T863 portable transmitter
Order No.: A-4170-0
Technical data: T863 transmitter
Dimensions (H x W x D): 155 x 72 x 30 mm
Weight: 82 g (without batteries)
Colour: Black
Material: ABS / polycarbonate, impact-resistant, unbreakable
Batteries: 2x AA 1.5V alkaline batteries,
uninterrupted power supply for approx. 20 h
or 2xAA 1.2V NiMH rechargeable batteries,
uninterrupted power supply for approx. 15 h
Charging times: Approx. 14 to 16 h when using the CHG 3512 recharger
Operating frequencies: Channel 1: 863.25 MHz; Channel 2 : 863.75 MHz; Channel 3: 864.75 MHz (±30 kHz)
Range: 30 metres when using the R863 receiver
Stability: ± 0.5 MHz, 0 – 50 °C
FM deviation: 60 kHz ± 5 kHz, transmission input at 1 kHz, 2.5 mV
Noise reduction: 50 µS
Sensitivity: < - 90 dBm at 60 kHz deviation
RF output: 5 - 10 dBm
Response frequency: 500 Hz – 5 kHz, ± 3 dB
Distortion: < 2.0 % THD
Transmission antenna: 5 cm
Recommended microphone: MIC 096 microphone headset
Microphone connection:
3.5-mm jack
Recharging contacts: Compliant with CHG 3512 battery recharger
Certifications: CE, ROHS, WEEE, ETSI EN 301 357-1, ETSI EN 301 357-2
The portable T863 broadband RF
transmitter can be clipped to a
belt. An impact-resistant plastic
enclosure protects the audio and
transmission technology. The signals are transmitted via a two-inch
antenna and the device is also
equipped with a 3.5-mm input jack
for the connection of a microphone
or microphone headset*.
Internal »mic gain control« guaran-
Depending on the battery type,
tees a well-balanced microphone
the R863 receiver provides for
signal. The transmitter is equipped
uninterrupted reception for up to
with three frequency channels that
20 hours.
the user can choose from. The
channel selection switch is also the
When the R863 receiver is used,
on/off switch.
the T863 transmitter has a range
The »power-on LED« flashes to
of approx. 30 metres.
indicate a low battery early.
* Microphone not included, see Accessories, Page 40: MIC 100 headset microphone, MIC 014-R plug-in microphone.
34
R863
RF receiver with
channel selection
Technical data for the R863 receiver
Dimensions (H x W x D): 115 x 72 x 30 mm
Weight: 85 g (without batteries)
Colour: Black
Material: ABS / polycarbonate, impact-resistant, unbreakable
Batteries: 2x AA 1.5V alkaline batteries,
uninterrupted power supply for approx. 20 h
or 2xAA 1.2V NiMH rechargeable batteries,
uninterrupted power supply for approx. 15 h
Recharging times: Approx. 14 to 16 h using the CHG 3512 recharger
Operating frequencies: Channel 1: 863.25 MHz; Channel 2 : 863.75 MHz; Channel 3: 864.75 MHz (± 30 kHz)
Range: 30 metres using the T863 transmitter
Stability: ± 0.5 MHz, 0 – 50 °C
FM deviation: 60 kHz ±5 kHz, transmission input at 1 kHz, 2.5 mV
Noise reduction: 50 µS
Noise cut-off:
-100 dB at 6 kHz
RF output: 5 – 10 dBm
Response frequency: 500 Hz – 5 kHz, ±3 dB
Distortion: < 2.0 % THD
Signal-to-noise ratio: > 50 dB (± 5 dB) with transmission input at 1 kHz, 2.5 mV
Connections:
3.5-mm jack headphones (recommended: HED 021)
or teleloop
Recharging contacts: Compliant with the CHG 3512 battery recharger
Certifications: CE, ROHS, WEEE, ETSI EN 301 357-1, ETSI EN 301 357-2
The earphones, headphones or a teleloop can be connected via the 3.5-mm audio
output. As an alternative to the portable transmitter, there is also a transmitter for
stationary installation (see next page), Order No.: A-4171-0.
R863 portable RF receiver
Order No.: A-4172-0
The portable RF receiver for the
tour-guide system is equipped
with a belt clip; as for the transmitter, the enclosure is made of
impact-resistant plastic and has a
connection jack for mono or stereo
headphones. The volume is controlled by a knob, which is also the on/
off switch. The LED, which lights
up permanently when the device
is switched on, will begin to flash
to indicate a low battery.
Depending on the type of battery
used, the R863 receiver provides
uninterrupted reception for up to
20 h.
In combination with the T863 tourguide transmitter, the R863 receiver
guarantees reliable reception over
a distance of approx. 30 metres.
35
T800
Radio transmitter in
stand enclosure, range
up to 120 metres
Suitable areas of application:
Churches,
assembly halls
Schools and other
educational facilities
Theatres, spectator
and viewer rooms
»T800« transmitter
Order No.: A-4171-0
The T800 RF transmitter transmits
the speaker’s voice, a music program
or the signals from any other audio
source wirelessly over a distance
of up to 120 m.
Conference and
Installation and operation of the
meeting rooms
transmitter are convenient and
Open-air events,
easy – »plug & play«: connect the
e.g. open-air theatres
microphone or audio system to
the XLR or 6.3 mm plug, switch on
the transmitter – and the system is
ready to go. An LCD display guides
the user through the menu.
The T800 operates on three frequency
channels: 863.250 / 863.750 and
864.750 MHz. This means that it
is also possible to transmit up to
Technical data
Dimensions (H x W x D): 4.6 x 21.8 x 21.8 cm
Weight:
1320 g
Colour: Black
Power supply: AC: 100 to 240 V AC, 50-60 Hz, 400 mA
DC: 12 to 13 VDC, 800 mA
Temperature range: 0 °C to 40 °C (storage temperature: -20 °C to 70 °C)
Operating frequencies: Channel 1 = 863.250 MHz / Channel 2 = 863.750 MHz,
Channel 3 = 864.750 MHz
RF output: 5 to 10 dBm
Stability: ±0.5 MHz (0 °C to 40 °C)
FM deviation: 45 KHz (transmission input, L+R, 1 kHz, 0.5 Vrms)
Noise reduction: 50 µsec
Range: Up to approx. 120 metres (for R863 receivers)
Response frequency: LINE-IN: 25 to 10.1 KHz ±3 dB
MIC-IN: 110 to 8.5 KHz ±3 dB
Signal-to-noise ratio (1 KHz): LINE-IN: > 50 dB
MIC-IN: > 40 dB
THD + noise (1 KHz):
LINE-IN: < 0.4%
MIC-IN: < 0.5%
Audio processing: 2:1 compression (LINE or MIC-IN)
Audio inputs: LINE: mono, RCA plug (2 x)
MIC: Combo XLR (3-pin) or 6.3-mm-TRS plug.
Audio level: (for FM deviation) LINE-IN: 0.5 Vrms (-6 dBV)
Microphone input: 10 Vrms (-40 dBV)
Common mode rejection:
MIC-IN: > 22 dB at 1 KHz
Antenna: 22.9 cm long, flexible, adjustable, removable
Certifications:
CE, ROHS, WEEE, ETSI EN 301 357-1, 2
three different languages, which
the listeners using the R863 FM
With a range of more than 100 metres, the transmitter is able to provide
receiver (see p. 35) can select as
even large venues with audio signals, from conference rooms to lecture
they wish.
halls and from open-air stages right on up to sport arenas.
The T800 transmits one channel
only. To transmit three different
languages, it would be necessary
to use three T800 devices.
36
kers
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r
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37
CM-1
Portable 3-channel
radio-frequency
transmission system
Convenient in its
operation ...
... from a personal
communications system
with one transmitter and
one receiver right on
up to guided tours in
and any number of separate re-
Technical data: CM-1 transmitter
Dimensions (H x W x D): Weight: Power supply:
Charging time (fully discharged): Operating time (depending on use): Carrier frequencies:
CM-1 receiver
Dimensions (H x W x D): Sound pressure level for headphones: Weight: Power supply: Charging time (fully discharged): Operating time (depending on use): CM recharger
Dimensions (H x W x D): Weight: Power supply via mains connection: ceivers. The components can be
Convenience in operation,
Equipped with an acoustic zoom
used to cover distances of up to
flexibility in use
function and an omnidirectional set-
CM-1 FM transmitter (incl. 2
rechargeable batteries)
Order No.: A-4320-0
CM-1 FM receiver with
teleloop (incl. 1 rechargeable battery)
Order No.: A-4340-0
CM recharger for CM-1
Order No.: A-4951-0
larger groups
easy to understand,
even in noisy environments
or under less-than-perfect
acoustic conditions
CM-1 – that’s the portable 3-channel FM system that is easy to understand – in conversation, during
guided tours or at panel discussion
or hosted events. The system consists of a transmitting microphone
30 metres.
67 x 83 x 65 mm
94 g
Primary 220/230 V 50-60 Hz AC /
Secondary 12 V DC
ting (spatial hearing), the directional
microphone is able to provide the
signals inductively via the teleloop
phone on a neck cord or place it
to the hearing aids. The CM-1 re-
nearby, on a table, for example. The
ceivers are also equipped with an
microphone transmits the signals
audio output jack.
Outstanding voice quality
Operation is easy and quick to
DSP technology processes the
learn. As a result, listeners can
audio signals in real time on the
make their own individual settings
basis of audiological criteria. Any
as soon as they get their receivers.
undesirable ambient noise is sup-
receivers, which the listeners wear
or carry.
The CM-1 case for the storage
20 x 39 x 96 mm
Max. 118 dB
45 g
1x 1.2 V NiMH rechargeable batteries (LR03)
Max. 12-14h
Max. 8-10h
The speaker can wear the micro-
it receives via radio waves to the
Order No.: A-4313-0
The CM system transmits the audio
19 x 37x120 mm
64 g
2x 1.2V NiMH rechargeable batteries (LR03)
Max. 12-14h
Max. 10-12h
Channel A: 863.5 Mhz
Channel B: 864.0 Mhz
Channel C: 864.5 Mhz
Three channels to select
suitable angle for sound reception
for a variety of different situations.
and transport of the CM-1
CM-1 is equipped with three radio
A knob is used to adjust the volume
pressed and voice frequencies are
system is equipped with
channels to choose from so that
to any level desired, while a treble-
accentuated. The AGC function
10 recharging bays for
up to three CM-1 systems can be
bass switch makes it possible to
(Automatic Gain Control) controls
active at the same time without
adjust the tone.
the adjustment of the volume to the
transmitters and receivers
that also serve as compartments for safe transport.
38
interfering with one another.
current acoustic situation.
RadioLight II
Technical data
Modulation process:
FM
Carrier frequencies:
Channel A: 863.25 MHz
Channel B: 863.75 MHz
Channel C: 864.75 MHz
Transmission power:
10 mW
Sound frequency transmission range: 15 - 20000 Hz
Distortion factor:
<1%
Signal-to-noise ratio: typ. 60 dB
Battery recharging time: Approx. 6 h
Transmitter
Power consumption: Approx. 3.6 VA
Power supply: Transmitter 12 volts DC
Mains connection 100-240 VAC 50/60 Hz
Weight:
Approx. 200 g
RadioLight DIR II under-the-chin receiver
Operating time depending on battery charge: Approx. 4-5 h
Maximum volume: Approx. 120 dBA
Weight: Approx. 59 g
Receiver with RadioLight LR II teleloop
Operating time depending on battery charge: Approx. 4-5 h
Maximum volume: Approx. 120 dBA
Weight: Approx. 59 g
The RadioLight DIR II
under-the-chin receiver
Order No.: A-4154-0
The ergonomically designed RadioLight DIR II under-the-chin receiver
is equipped with earpieces that
swivel to stay firmly fixed in the
user’s ears even when the user
moves his/her head. The flexible
material fits snugly into the auditory canal to effectively subdue
any other ambient noise (different
silicone earpieces available, see
Receiver with RadioLight LR II
teleloop
Order No.: A-4160-0
The RadioLight II system with its
mitter and two different types
transmitter and two different types of
The RadioLight LR II receiver is
of receivers
receivers makes it possible to create
equipped with a teleloop that uses
convenient audio solutions that are
an induction system to transmit the
able to provide sound coverage for
audio signal directly to hearing aids
a range of up to approx. 80 metres.
or CI systems via the integrated
The receivers are equipped with a
telecoil. It is also fitted with an audio
mono- and stereo switch as well as
output jack – to allow the connec-
infinitely variable volume control.
tion of headphones, for example,
nels on the transmitter and the receivers make it possible to operate
the system on three transmission
paths with separate frequencies
that remain »isolated« from one
another – ideal for simultaneous
interpreting in different languages
or for the operation of several systems at different event venues that
are various distances apart.
The RadioLight II transmitter
The transmitter can also be
used as a battery recharger. A microprocessor-controlled intelligent recharging
switch (with charging status
indicator) increases battery
service life and guarantees
short recharging times.
p. 40).
3-channel system with trans-
Three individually selectable chan-
Stationary
3-channel
transmission
system
The transmitter includes
the transmitter itself with the
power supply unit, one battery
to operate one receiver and
an audio connection cord.
or for a cable connection to the
hearing aid.
Order No.: A-4123-0
The RadioLight II transmitter includes a recharging bay for one
receiver and two recharging inserts
for separate batteries.
Case able to accommodate up
to 15 under-the-chin receivers –
Description: p. 27
39
Accessories for
radio-frequency
transmission
systems
MIC 100 headset microphone
Order No.: A-4481-0
HED 021 headphones
Order No.: A-4913-0
Headset with condenser directional
microphone:
Noise suppression
1-metre cable
Compatible with the T863
receiver
MIC 014-R plug-in microphone (omnidirectional) for
the portable T863 radiofrequency transmitter
Order No.: A-2976-0
40
»Deluxe« headphones for adults:
3.5-mm plug to connect the
R863 radio-frequency receiver.
1-metre cable
Under-the-chin receiver
(closed)
Order No.: A-4903-0
Under-the-chin receiver weighing less than 30 g for connection to the R863 receiver
Ergonomically designed earpieces that fit snugly into the
auditory canal
Accessories for
radio-frequency
transmission
systems
Silicone earpieces for LPU-1
under-the-chin receivers
(closed) A-4903-0 (also for
RCI-102, InfraLight, RadioLight)
Standard
Order No.: A-4985-0 (2 sets)
Order No.: A-4987-0 (24 sets)
Tapered shape
Teleloop (mono) 1.14 m
Order No.: A-4928-0
Neck loop for use with receiver
R863
Inductive audio transmission to
hearing aids or CI systems via
Case for one stationary
transmitter and 10 receivers
Order No.: A-4190-0
The CCS 030 S heavy-duty case is
ideal for the professional storage
and safe transport.
the T-coil (switch set to »T« or
The case made of hard plastic with
»MT«)
metal edging and rubber foam on
Order No.: A-4988-0 (2 sets)
the interior is able to accommodate
Order No.: A-4989-0 (24 sets)
one transmitter, the T 800 for ex-
Perforated
Order No.: A-4993-0 (2 sets)
Order No.: A-4992-0 (24 sets)
ample, and 10 RF receivers (R863
or RX22-4).
Carrying strap for the T863
and the R863
Order No.: A-4918-0
41
Accessories for
radio-frequency
transmission
systems
The HUMANTECHNIK program
Recharger for 2 R863 / T863
includes single and multiple-battery
radio-frequency units*
rechargers for all the systems.
Depending on the product group,
the transmitters and receivers are
either inserted completely into the
Order No.: A-4979-0
For users who want to lend the corresponding receivers to visitors for
a limited time during an event, we
A100 batteries
Order No.: A-4974-0
Recharger with 2 independent
Time-saving recharger for users
recharging bays.
who operate a larger number of
under-the-chin receivers for the
rechargers or the batteries are
removed and inserted separately.
12-battery recharger for
RadioLight system.
CHG3512 12-battery
recharger*
Order No.: A-4978-0
5-bay recharger for
RadioLight receivers
recommend using multiple-battery
For users who operate a larger
rechargers to keep recharging time
number of R863 or R22-4 receiv-
and trouble to a minimum.
ers, we recommend using this
Recharger with 5 independent
time-saving recharger, which is
recharging bays for RadioLight
equipped with 12 independent
receivers.
HUMANTECHNIK transport and
recharging cases are available for
the safe, reliable transport of these
components.
Order No.: A-4976-0
recharging bays. It takes approx.
16 hours to recharge the original
receiver batteries.
Single-bay recharger for a
RadioLight receiver
Order No.: A-4977-0
Case with 12-battery
recharger*
Order No.: A-4195-0
When the RadioLight receiver is not
in use, the user can place it in the
recharger.
Safe and reliable transport and
storage of up to 12 R863 receivers
incl. the A-4978-0 recharger.
Replacement A100 battery
for RadioLight receivers
* Batteries must be
ordered separately.
2 batteries per device.
Order No.: EG4601-0
42
Order No.: A-4970-0
A
I
Accessible sound...............................4
Impact-resistant plastic enclosure...34
Adapter cord....................................15
Induction / Induction systems............6
Aluminium case................................14
Induction loop amplifier......8; 9; 10; 11
Audio coverage of large areas.........29
Induction loop cable.........................15
Automatic Gain Control (AGC).....8; 10
Induction loop case............................8
C
Carrier frequencies...........................17
Carrying strap..................................37
Case...........................................27; 41
Cinch connection cord.....................15
CI system............................................4
CM-1.................................................34
Coaches.............................................8
induction loop Cross-the-counter.......9
Induction loop pad.......................9; 15
PROLOOP C.....................................10
PROLOOP DCC..........................10; 11
PROLOOP FSM................................15
PROLOOP LOS................................13
Q
Quality assurance.............................11
R
Induction loop position.......................7
R863 TGS receiver...........................31
Induction loop receiver.....................14
Radio-frequency receiver.....35; 39; 39
Induction loop system....................5; 6
Radio-frequency
transmission systems...................5; 29
Induction loop wire cross-section......7
InfraLight..........................................24
Infrared light dispersion.............18: 21
Radio-frequency
transmitter.......................34; 36; 38; 39
Infrared receiver...............................22
RadioLight II.....................................39
Infrared transmission
systems..................................5; 16; 20
Ranges.......................................17; 29
Condenser or electret microphone....7
Reception range...............................21
Conducting material...........................7
Infrared under-the-chin receiver.......23
Conference system..........................30
Interpreter system............................30
Rechargeable/replacement
battery..................................14; 26; 42
Combined receiver PR-20+........14; 23
Configuration examples...................20
Copper ribbon cable........................15
Crescendo 50...................................14
D
L
LA-60..................................................9
LA-90..................................................8
LA-215................................................9
Digi-WaveTM......................................30
LOS / LOS installations.....................12
Directional sensitivity........................12
Low-overspill systems (LOS)......12; 13
Dual action.......................................10
Dynamic microphones.......................7
E
M
Magnetic field...................................12
Earpieces.............................14; 23; 40
Measuring device for
induction loop systems.....................15
Emergency signals.............................4
Medium-sized rooms . .....................10
Environmental factors.................17; 29
Microphone EH1205...........................9
Equality of disabled persons
law (BGG)...........................................4
MOD 232....................................19; 20
Equality...............................................4
Monitor output..................................10
European Constitution........................4
Mounting kit................................18; 19
European standards...........................6
Multi-channel operation....................17
European Standard EN60118-4
Multi-language transmissions...........23
(IEC118-4)..........................................6
European Union..................................4
Extraneous light................................21
F
Modulator.............................18; 19; 20
N
National laws......................................4
O
Field strength reduction ..................12
Optimal signal coverage..................17
Four-channel infrared receivers
Out-of-phase....................................12
(RX22-4)...........................................22
Overspill...........................................12
Four-channel system........................20
Function of an induction
loop system........................................6
G
German equality of disabled
persons law (BGG).............................4
H
Headphones...............................22; 40
Headset microphone..................34; 40
Hearing aids.......................................6
HED 021.....................................22; 40
High-powered infrared
transmitter...................................17; 18
P
Plastic tray..................................14; 27
PLL microphone.........................15; 25
PLS amplifier..............................10; 11
Plug-in microphone..........................40
Pocket receiver.................................22
Pocket transmitter.............................25
Portable 3-channel radio-frequency
transmission system……………... …38
Portable induction loop systems........8
Portable R863 radio-frequency
receiver.............................................35
Portable T863 radio frequency
receiver.............................................34
Professional use...............................10
Keyword list
from A to Z
Recharger.................14; 23; 26; 39; 42
RX22-4..............................................22
S
Signal availability..............................10
Small to medium-sized rooms............9
Standard configuration.....................20
Standards...........................................6
Stand................................................27
Stationary 3-channel
transmission system…………….......39
Stereo or selective mono
reception..........................................23
T
2.4 GHz transmission system...........30
T800.................................................36
T863 TGS transmitter........................34
Tabletop microphone........................15
Team teaching system......................30
Telecoil................................................6
Teleloop......................................22; 41
Tour-guide system
(TGS)………………………………28; 30
Two-channel high-powered
infrared transmitter.....................20; 21
TX9.............................................18; 20
TX90.................................................21
U
UHF101 (wireless microphone) . .....25
UHF401 (wireless microphone)........25
Under-the-chin receiver..............23; 24
Under-the-chin listening
device...................................14; 26; 40
W
WIR TX9 transmitter..........................18
WIR TX90 transmitter........................21
Wireless microphone........................25
X
XLR connection cord........................15
XLR input jack............................10; 11
43
Welcome to
the dialogue about
accessible Audio transmission systems
Im Wörth 25
D-79576 Weil am Rhein
Telefon: +49 (0) 76 21 / 9 56 89 - 0
Fax: +49 (0) 76 21 / 9 56 89 - 70
[email protected]
Internet:
www.humantechnik.com
HUMANTECHNIK GmbH
Vertriebsbüro Berlin
Garibaldistraße 60
D-13158 Berlin
Tel.: +49 (0) 30 / 91 74 50 01
Fax: +49 (0) 30 / 91 74 50 02
[email protected]
Internet: www.humantechnik.com
·
SMS Audio Electronique Sàrl
173 rue du Général de Gaulle
F-68440 Habsheim
Tel.: +33 (0) 389441400
Fax: +33 (0) 389446213
E-Mail: [email protected]
Internet: www.humantechnik.com
www.AUDIOropa.com
HUMANTECHNIK GHL AG
Rastatterstrasse 9
CH-4057 Basel
Tel.: +41 (0) 61 / 6 93 22 60
Fax: +41 (0) 61 / 6 93 22 61
E-Mail: [email protected]
Internet: www.humantechnik.com
Hoorexpert BV
Gildenstraat 30
4143 HS Leerdam
Nederland
Tel.: +31 (0)345 / 632393
Fax: +31 (0)345 / 632919
[email protected]
Internet: www.hoorexpert.nl
All rights reserved regarding technical changes and changes to the programme structure, Printed in Germany 02/11
HUMANTECHNIK GmbH
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