Medel FM User manual

For the TEMPO+ Speech Processor
FM SYSTEM GUIDE

:: 3
TABLE OF CONTENTS
INTRODUCTION TO FM SYSTEMS
ABOUT DIFFICULT LISTENING ENVIRONMENTS
USING FM SYSTEMS IN DIFFICULT LISTENING ENVIRONMENTS
HOW OFTEN SHOULD FM SYSTEMS BE USED?
CONNECTING AN FM SYSTEM TO THE TEMPO+ SPEECH PROCESSOR
:: FM Adapter Cables for the TEMPO+ Angled Battery Pack
:: Connection to the TEMPO+ Angled Battery Pack
:: FM Adapter Cables for the TEMPO+ Remote Battery Pack
:: Connection to the TEMPO+ Remote Battery Pack
RECOMMENDED FM SYSTEMS AND SETTINGS
:: Phonic Ear Lexis and MicroLink CI S Adapter
:: Phonic Ear Solaris PE 571T + PE 572R (or PE 575 R)
:: Campus S, Phonak MicroLink MLxS and MicroLink CI S Adapter
:: Campus S and Phonak MicroLink CI+
:: Tx3 HandyMic and Phonak MicroLink CI+
:: Phonak MicroVox H33 COM I
:: Sennheiser mikroport 2015
:: Sennheiser mikroport 2013 PLL
:: Research Vario 800
:: Connevans CRM 220 D
:: Sonovation Logicom Ci (Remote Battery Pack only)
:: Williams Sound Hearing Helper PFM 350
:: Comtek AT 216
TROUBLESHOOTING
REFERENCES
4
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6
9
10
12
13
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46

Guide to FM Systems
4::
Introduction to FM systems
MED-EL offers a wide range of adapter cables for use with frequency modulated systems
(FM systems), battery-operated devices such as portable CD players, and assistive
listening devices (ALD). The TEMPO+ speech processor can be connected to these
devices using either the Angled Battery Pack or the Remote Battery Pack.
This guide, intended for MED-EL recipients, teachers, technical personnel and
audiologists, presents an overview of compatible FM systems, information on connection
and recommended settings.
An FM system consists of two basic components: an FM transmitter with a
microphone and an FM receiver. For optimal benefit, the microphone should be
positioned close to the speaker, e.g. teacher. Due to the close position of the
microphone to the sound source, background noise and reverberated sounds are
greatly reduced.
The FM transmitter amplifies and modulates the sound signal and sends it to the FM
receiver via radio wave. The FM receiver demodulates the signal and transmits it to
the speech processor (see fig. 1). For the CI recipient, the sound quality is the same
as if the person were speaking directly into the speech processor’s microphone.
FM receiver connected to
the speech processor FM transmitter
with microphone

:: 5
About difficult listening environments
Background noise makes hearing more difficult for everyone – and especially for
people with hearing impairment. An optimal signal to noise ratio is required for good
listening conditions. The signal (e.g. speech) should be somewhat louder than the
background noise (e.g. traffic, people talking, etc.) to be considered easy to listen to.
There are three factors that degrade the quality of a speech signal received by the
microphone of the speech processor: noise, reverberation and distance.
Noise such as the radio or television playing in the background, scraping of chairs,
street sounds, people talking, rustling paper, air conditioners, fans and other
sounds all affect our ability to hear and understand speech. To improve hearing
in such conditions, it is important to ensure that speech is presented at a
louder level than any competing background noise. For most normal hearing
individuals, the signal should be 6 dB louder than the noise, while for hearing
impaired individuals it should be 15 to 18 dB louder. The average classroom
has a signal to noise ratio of 0 dB.
Reverberation or echo is a prolongation of sound - due to multiple reflections from
hard surfaces - that affects the clearness of speech. The degree of
reverberation (measured as the time required for a sound to drop 60 dB from
its initial level) is dependent on the characteristics of a room: hard walls, high
ceilings, tiled floors and glass windows all contribute to a more reverberant
room. Thus, problems with listening occur more frequently in classrooms, the
bathroom, kitchen, the laundry room or the cellar. For effective listening,
hearing impaired people need rooms to have a reverberation of no more than
0.3-0.4 seconds – the average classroom reverberation level is twice as high.
Distance is the range in which speech can be heard. With hearing loss, this range is
reduced, so the listener needs to be closer to the speaker to hear speech well.
The best distance for hearing speech is 1-2 m (3-6 ft.). Doubling this distance
reduces the signal to noise ratio by 6 dB.
What can be done to improve hearing in difficult listening conditions?
FM systems work by placing the speech signal right at the listener’s ear, thus
reducing the effects of background noise, echo and distance. First, FM systems cut
down noise by amplifying the speaker’s voice. They also reduce the effects of
distance by bringing the speaker’s voice directly to the listener’s ear. Finally, FM
systems dampen echo by making the speech signal clearer. By using radio waves, FM
systems allow the strength and quality of sounds to remain constant over the
operational distance.
FM systems also reduce the effort required for communication. By improving the
signal to noise ratio, reducing distance and echo, they reduce listening fatigue. The
communication process is also easier for the speaker, as he or she can move around
freely and talk at normal levels - no loudspeakers or other devices are required.
An effective solution for the
poor acoustic environments
in classrooms is the use of
FM systems. FM systems
use frequency-modulated
(FM) radio waves to
transmit the speech signal
from the teacher directly to
the student’s speech
processor.

Guide to FM Systems
6::
Using FM systems in difficult
listening environments
Ideally, FM systems should be used in difficult or complex listening situations. A
listening situation is considered difficult when (1) the signal (e.g. a teacher’s voice)
is very far away from the listener, (2) the background noise is very loud and additional
sounds make it difficult to hear the signal (e.g. in a classroom), or (3) in reverberant
rooms where the echo distorts the signal (e.g. in auditoriums).
Indoor listening environments
At home, rooms such as the kitchen, bathroom, hallway, laundry, basement, etc. are
characterized by particularly high reverberation levels due to the sparse use of sound-
reducing materials such as carpets, curtains, etc. Large, smooth surfaces lead to
multiple reflections of sound waves. A table without a tablecloth, therefore, may also
create a difficult listening situation for a hearing-impaired individual by reflecting
sound. A golden rule for improving listening situations is to use as many sound-
reducing materials as possible in all rooms. Background noise is another condition in
the home that can adversely affect a listening environment. Sounds from a radio, for
example, may complicate a listening situation and should be turned off when
possible. When background noise is unavoidable in the home, an FM system can be
of considerable benefit.
Group situations, restaurants, etc.
In group situations, background noise is considerably louder than in individual
conversations. Low level conversation, laughter, scraping of chairs and clinking of
dishes all add noise to the environment. An FM system can be of assistance in this
situation as the listener can position the FM microphone near the desired sound
source, thereby enhancing the signal and effectively reducing the effect of
background noise.
Many listeners have great difficulty hearing speech in restaurants where there is a
great deal of background noise. Some solutions include placing the FM microphone
on the speaker’s collar or hanging it from a light fixture above the table. Group
members should be aware of the difficulties such environments impose on a person
with a hearing loss, and limit the conversation to one speaker at a time.
Celebrations, parties
Noise levels at parties and other celebrations are usually very high. Music,
conversation and laughter are often so loud that even normally hearing people have
to raise their voices in order to be heard. As this happens, background noise levels
increase further. Speaking directly into the microphone of the FM system is very
helpful in such situations.
Another tool ideal for such difficult environments is the TeleMic system. The
integrated external microphone allows the TeleMic to be used as a “tie-clip”

:: 7
microphone, providing effective assistance in difficult listening situations, such as
conversations in loud background noise.
Television, listening to music
To reduce ambient noise when watching television, the microphone should be placed
directly in front of the TV loudspeaker or music source. As an additional benefit, the
volume of the device can be turned down so that others are not disturbed.
Most FM transmitters are equipped with an external audio input (AUX) for direct
connection of the TV or radio to the FM system. While using, the direct input sound
signals are transferred directly to the speech processor. By using the EXT or MIX
listening mode the listener can choose whether or not to suppress background noise.
We recommend using the SCART output socket (on the back of the TV) instead of the
headphone output for direct connection to FM systems. This allows others to listen
to the TV loudspeaker, whereas a connection via the headphone output suppresses
the loudspeaker.
School
Listening situations in school can be very demanding and exhausting for hearing-
impaired children, affecting their learning abilities and auditory, speech and
language development. Social interactions may also suffer from misunderstood
messages or missed acoustic information.
Noise levels of 65–90dB are often measured in schools - particularly in schools where
the furnishings and size of the classroom are not designed to support hearing-
impaired children.
Three basic listening situations can be identified in schools:
:: Free play or working freely in a group: these situations are characterized by a
babble of voices and background noise as well as a large or variable distance from
the teacher. In this case, if the teacher wears the microphone of the FM system,
the hearing-impaired child can hear the teacher’s instructions directly, despite
the high level of interfering noise.
:: Group work in smaller groups: in this situation, a hearing-impaired child should
be able to understand all members of the group to actively participate in the
discussion or project. Most benefit can be obtained from an FM system when the
speaker speaks directly into the microphone. This allows the hearing-impaired
child to follow the conversation without great effort. Speech understanding is also
facilitated by placing the microphone in the center of the group.
:: Teacher’s instructions, dictations, working in a large group: these are the most
common situations in schools. It is important for a child to be able to completely
understand and concentrate on the teacher’s instructions over a longer period of
time. An FM system enhances the teacher’s voice, thus improving the signal-to-
noise ratio. As a result, less effort is required for a hearing-impaired child to
follow spoken instructions.

Guide to FM Systems
8::
Cars
To overcome listening difficulties caused by engine noise and traffic, the microphone
may be clipped to the front or back seat if there are several passengers, or to the
collar of the speaker if there is only one other person in the car. The same can be
done using the microphone mode of the TeleMic system.
Meetings
Business meetings often take place at large tables, and listeners may have trouble
with echo, noise and not being able to see the speaker's face. It is often helpful to
position the microphone at the center of the table or in front of the main speaker.
Large rooms
Listening in large rooms, e.g. auditoriums, churches or other reverberant rooms, can
cause problems, particularly due to echo and distance. Difficulties can be overcome
by placing the microphone of the FM system at the loud speaker amplifying the
desired sound. It is advisable to ask permission from the speaker prior to the event.
In many public areas, such as cinemas, theaters, museums, etc., assistive listening
devices are already available. If so, it is advisable to use these systems for better
hearing abilities.
The TeleMic is an ideal accessory for the TEMPO+ speech processor where inductive
loop systems are available. The built in telecoil allows easy wireless access to room-
sized induction loops which are often available in such areas.
Outdoor listening environments
Playgrounds, schoolyards, outdoor activities such as riding a bike or horse, jogging,
etc. all are characterized by ambient noise and, particularly, by the speaker’s distance
from the listener. It is almost impossible for a hearing-impaired individual to hear a
call from a distance of 10-20 m (30-60 ft.). The FM system can be used to
compensate this distance. FM systems transmit sounds and speech over such
distances directly to the listener.

:: 9
How often should FM systems
be used?
Childrens’ ability to hear their parents is very important, especially for young children.
Warnings and instructions can be conveyed to the child over a distance to increase
the child’s safety. However, FM systems should not be used constantly. First, specific
measures to improve room acoustics (no avoidable background noise, sound
absorbing materials, etc.) and communication (only one speaker, speaking clearly,
minimizing the distance to the listener, etc.) should be taken. Hearing-impaired
children should be taught coping strategies to help them deal with various complex
listening situations. They should learn to decide for themselves when to use the FM
system. In addition, it may not always be possible to use an FM system (e.g. if the
equipment is not available), so hearing-impaired persons should be able to use other
auditory assistance techniques in these cases as alternatives to FM systems.
The FM system should be used when the hearing-impaired individual wants to
understand acoustic information completely and reliably over a longer period of time.
This is easiest with only one speaker, e.g. a teacher or instructor, without a discussion
involving several people. In group conversations, it is best to have the speaker speak
directly into the microphone. Since this may not always be possible, it is important
to enhance the signal of the main speaker in group situations such as classroom
discussions, where the contributions of classmates should not be completely masked.

Guide to FM Systems
10 ::
Connecting an FM system to the
TEMPO+ speech processor
To connect an FM receiver to the TEMPO+ speech processor, an adapter cable is
required. This cable not only transfers the signal to the speech processor, but also
adapts the output level of the FM receiver to the input level of the speech processor.
Furthermore, the adapter cable functions as an antenna for some FM receivers.
Therefore, it is important to use the correct adapter cable to connect a specific FM
device to the speech processor.
Direct input / MIX and EXT mode
When an FM system is connected to the TEMPO+ speech processor, the user hears
the input from both the TEMPO+ microphone and the FM system microphone. The
sound received by the microphone of the TEMPO+ will be slightly softer compared to
the normal listening situation in order to give priority to the sound from the FM
system. This mode is called MIX mode and is advisable for most listing situations.
Should a situation require listening to an external device without disturbing
background noise, the EXT mode is available. In EXT mode, the TEMPO+ microphone
is deactivated, and only the signal of the external device is sent to the TEMPO+
speech processor.
MIX/EXT mode for the Angled Battery Pack
When using the TEMPO+ Angled Battery Pack for external input, the MIX and EXT
functions are selected by using the appropriate adapter cable or by using the
sensitivity control of the TEMPO+ microphone.
MED-EL recommends that FM systems set up with the Angled Battery Pack be used
with MIX cables. This is particularly advisable for classroom situations.
If a situation should require listening to an external source alone, the EXT mode can
be reached by turning the sensitivity control of the TEMPO+ speech processor to the
OFF position. Please refer to the chapter “Influence of the TEMPO+ sensitivity
control” for more details.
MIX/EXT mode for the Remote Battery Pack
When using the Remote Battery Pack, the MIX and EXT functions are selected by the
EXT/MIX switch.
NOTE:
Adapter cables should
never be used to connect
the TEMPO+ to equipment
that is powered via direct
connection to an electrical
outlet.
EXT/MIX
switch

:: 11
Influence of the TEMPO+ sensitivity control
The sensitivity control of the TEMPO+ speech processor enables the user to control
the processing of desired sounds and background noise. When using FM systems, the
effect of background noise and reverberation is minimized. FM systems help to
reduce background noise while enhancing and stabilizing the main sound source.
In MIX mode, the listener hears environmental sounds received by the TEMPO+
microphone plus the signal from the external source (FM system). If a hearing
situation requires concentrating only on the signal coming from the external source,
hearing can be optimized by deactivating the TEMPO+ microphone. This is performed
by turning the sensitivity control to the OFF position.
The TEMPO+ sensitivity control influences the inputs from the TEMPO+ microphone
and the external source as follows:
Binaural adapter cable
The bilateral adapter cable allows the connection of two TEMPO+ speech processors
to one FM system. The microphones of both TEMPO+ processors remain active. The
user hears both the input from the external source as well as environmental sounds.
Bilateral adapter cables are available for the Angled Battery Pack and nearly all
recommended FM systems.

12 ::
www.medel.com
NOTE: These cables are for use with battery-powered equipment only and should never be
used with equipment plugged into an electrical outlet.
Cables shown with a MED-EL order number are available through your clinic or local MED-EL representative. Phonak cables and the
Phonak MicroLink CI S adapter can be ordered from your local Phonak distributor.
FM Adapter Cables for the
TEMPO+ Angled Battery Pack
MED-EL offers a variety of adapter cables for use with FM systems, battery-operated devices such
as portable CD players, and Assistive Listening Devices (ALDs).
FM Systems generally require adapter cables designed for each specific system. The following table
provides a list of FM Systems and compatible adapter cables.
Manufacturer Type FM System Name Adapter Cable Order No.
Phonic Ear Transmitter Lexis
Phonic Ear Receiver Lexis
Phonak Adapter MicroLink CI S Phonak Red Cable (Mix) from Phonak
Phonak Red Red Cable (BiMix) from Phonak
Phonic Ear Transmitter & Receiver Solaris T+ EuroMix (3 pins) 02379
T+ EuroBiMix (3 pins) 02707
Phonak Transmitter Campus S
Phonak Receiver MicroLink MLxS
Phonak Adapter MicroLink CI S Phonak Red Cable (Mix) from Phonak
Phonak Red Red Cable (BiMix) from Phonak
Phonak Transmitter Campus S
Phonak Receiver MicroLink CI+ Phonak Red Cable (Mix) from Phonak
Phonak Red Red Cable (BiMix) from Phonak
Phonak Transmitter HandyMic
Phonak Receiver MicroLink CI+ Phonak Red Cable (Mix) from Phonak
Phonak Red Red Cable (BiMix) from Phonak
Phonak Transmitter & Receiver MicroVox Hxx COM I T+ EuroMix (3 pins) 02379
T+ EuroBiMix (3 pins) 02707
Sennheiser Transmitter & Receiver Mikroport 2015 T+ AudioMix (yellow ring) 02377
T+ Audio BiMix (yellow ring) 02383
Sennheiser Transmitter & Receiver Mikroport 2013 PLL T+ AudioMix (yellow ring) 02377
T+ Audio BiMix (yellow ring) 02383
T+ AudioExt (red ring) 02378
Research Transmitter & Receiver Vario 800 Vario 800Mix Cable 03078
Connevans Transmitter & Receiver CRM 220 T+ ConnevansMix (2 pins) 02381
Williams Sound Transmitter & Receiver Hearing Helper T+ AudioMix (yellow ring) 02377
T+ AudioExt (red ring) 02378
Comtek Transmitter & Receiver Comtek AT 216 Comtek Mix Cable 03080
NOTE:
Mix cable - TEMPO+ microphone remains active when connected to an external device. The user hears both input from the external
source and environmental sounds.
BiMix cable - for connection of two TEMPO+ speech processors to one FM System. The microphones of both TEMPO+ processors
remain active. The user hears both input from the external source and environmental sounds.
Ext cable - TEMPO+ microphone is deactivated when connected to an external device. The user hears input from an external device
without environmental sounds.

:: 13
www.medel.com
How to connect...
1. Open cover at the angled part of the device by
pulling straight back (a) and lifting upward (b).
2. Insert the connector of the cable into the socket as shown.
The red dot on the cable connector should be on top.
When positioned correctly, the connector slides into the
socket easily.
Note: Be careful not to force the connector into the socket
in the wrong way.
3. Gently lower the cover until it rests on the connector (c).
This ensures maximum protection of the connector.
Connection to the TEMPO+ Angled Battery Pack
ab
c
c
b
Connecting an FM Cable
Disconnecting an FM Cable
How to disconnect...
1. Lift up the cover (a).
2. Remove cable by holding the connector and gently pulling
it out (b).
3. Close the cover by gently pushing it down and then inward
until it rests into place (c).
a

14 ::
www.medel.com
MED-EL offers a variety of adapter cables for use with FM systems, battery-operated
devices such as portable CD players, and Assistive Listening Devices (ALDs).
FM Systems generally require adapter cables designed for each specific system.
The following table provides a list of FM Systems and compatible adapter cables.
FM Adapter Cables for the
TEMPO+ Remote Battery Pack
Cables shown with a MED-EL order number are available through your clinic or local MED-EL representative. Phonak cables, and the
Phonak MicroLink CI S adapter can be ordered from your local Phonak distributor.
NOTE: These cables are for use with battery-powered equipment only and should never be
used with equipment plugged into an electrical outlet.
Manufacturer Type FM System Name Adapter Cable Order No.
Phonic Ear Transmitter Lexis
Phonic Ear Receiver Lexis
Phonak Adapter MicroLink CI S White Cable from Phonak
Phonic Ear Transmitter & Receiver Solaris Solaris Adapter Cable 01847
(green ring, 3 pins)
Phonak Transmitter Campus S
Phonak Receiver MicroLink MLxS
Phonak Adapter MicroLink CI S Phonak White Cable from Phonak
Phonak Transmitter Campus S
Phonak Receiver MicroLink CI+ Phonak White Cable from Phonak
Phonak Transmitter HandyMic
Phonak Receiver MicroLink CI+ Phonak Gray Cable from Phonak
Sennheiser Transmitter Mikroport 2013 PLL
Phonak Receiver MicroLink CI+ Phonak White Cable from Phonak
Phonak Transmitter & Receiver MicroVox Hxx COM I Phonak Adapter Cable (3 pins) 01848
Sennheiser Transmitter & Receiver Mikroport 2015 RBP Sennheiser Cable 02699
(yellow ring)
Sennheiser Transmitter & Receiver Mikroport 2013 PLL RBP Sennheiser Cable 02699
(yellow ring)
Research Transmitter & Receiver Vario 800 RBP Sennheiser Cable 02699
(yellow ring)
Connevans Transmitter & Receiver CRM220 Connevans Adapter Cable 01621
(blue ring, 2 pins)
Sonovation Transmitter & Receiver Logicom CI RBP AVR Cable 03175
(green ring)
Williams Sound Transmitter & Receiver Hearing Helper RBP Sennheiser Cable 02699
(yellow ring)
Comtek Transmitter & Receiver Comtek AT216 RBP Sennheiser Cable 02699
(yellow ring)

:: 15
External
Audio Input
a
1. Remove the rubber protector of the audio input (a)
2. Ensure that the correct end of the adapter cable is
used. The correct end features a colored ring (b).
3. Insert the adapter cable into the socket (c).
b
c
www.medel.com
EXT/MIX switch
Connection to the TEMPO+ Remote Battery Pack
EXT/MIX Switch
The EXT/MIX switch is used to control microphone function when
an external device is connected
EXT: TEMPO+ microphone deactivated
The user hears input from an external device only
without environmental sounds.
MIX: TEMPO+ microphone active
The user hears input from the external device and
environmental sounds.

Guide to FM Systems
16 ::

:: 17
Recommended FM systems
and Settings
FM receivers and FM transmitters have various controls to adjust parameters such as
microphone sensitivity, input mode, transmission channel, output volume, output
mode, etc. In some cases, tools may be needed or the device housings may have to
be opened for adjustments.
To reach optimal performance with an FM system, we recommend that you contact a
hearing aid dealer for adjustment of the device.
MED-EL provides recommended FM system settings as a starting point for initial
fitting. When the recommended settings include a range, we suggest starting in the
middle of the range. Note that the channel selected on the receiver and transmitter
must be always the same.
For all FM transmitters, the use of a separate lapel microphone is strongly
recommended. It should be positioned at a distance of approximately 20 cm (8 in.)
from the mouth of the speaker. Friction and wind noises should be avoided. The cable
leading from the lapel microphone to the FM transmitter as well as the cable between
the FM receiver and the TEMPO+ should hang freely.
There are numerous FM systems available for use with MED-EL cochlear implant
systems. FM systems differ in transmission range, sound quality, size, availability of
multiple channels, battery life and other features.
MED-EL recommends that you contact your local FM system distributor or hearing aid
dealer when considering an FM system. You may be able to borrow a system for a
week to test it in the specific conditions in which it will be used.
Please note that FM transmission frequences may also be subject to legal restrictions,
which vary regionally. Make sure that all requirements are met and all local laws are
conformed to.
The FM systems described in this guide have been tested by MED-EL and are
recommended for use with the TEMPO+ speech processor. These systems have shown
good sound quality and a transmission range of at least 10 m (30 ft.). However, the
performance of any FM system will depend on many factors and the specific
environment in which it is used.

Phonic Ear Lexis and
MicroLink CI S Adapter
Description:
Dimensions
Weight
Operation time
Audio bandwidth
Channels
125 x 20 x 35 mm
4.9 x 0.78 x 1.37”
75 g
8 h (rechargeable)
10 (disposable AAA)
100 – 6,500 Hz
15 (preprogrammed)
15,2 x 12,4 x 11,3 mm
0.59 x 0.48 x 0.44”
2.1 g
–
100 – 5,500 Hz
80 - 7,300 Hz
1 (fixed-14 to choose from)
Transmitter
Lexis (1) Receiver Lexis (2) Adapter MicroLink CI S (3)
28 x 21 x 12 mm
11 g (without battery)
100 h
Connection:
Angled Battery Pack
MONAURAL
MIX mode
EXT mode
Phonak Red Cable
Phonak Red Cable
turn TEMPO+ AGC OFF!
BINAURAL
Listening Mode
selected by cable Adapter Cable Order
Number Adapter Cable
can be ordered
from Phonak
Phonak Red Red Cable
Phonak Red Red Cable
turn both TEMPO+ AGCs OFF!
Remote Battery Pack
MONAURAL
MIX mode
EXT mode
Phonak White
Cable
Listening Mode
selected by switch Adapter Cable Order Number
can be ordered
from Phonak
Order
Number
can be ordered
from Phonak
www.phonicear.com
18 ::
1
2
3

www.phonicear.com
Phonic Ear Lexis and
MicroLink CI S Adapter
:: 19
ANGLED BATTERY PACK REMOTE BATTERY PACK
Recommended settings:
MIX mode EXT mode
Omnidirectional
°FM
Max
3
Omnidirectional
°° FM + HA
Max
2 .. 3
Omnidirectional
°FM
Max
2
Transmitter
Phonic Ear Lexis
ON/OFF/mode switch
Receiver
Phonic Ear Lexis
Mode Switch
FM Gain Control
Adapter
MicroLink CI S
Volume
Transmitter
Adapter
ON/OFF/mode switch
Antenna
Volume
Receiver
Max
Mode switch
FM Gain Control
Omni mode
Output socket for connection
to the speech processor
ON/OFF switch
NOTE: A new CI adapter made by Phonic Ear will be available soon.

20 ::
Connection:
Angled Battery Pack
MONAURAL
MIX mode
EXT mode
T+ EuroMix
T+ EuroMix
turn TEMPO+ AGC OFF!
BINAURAL
Listening Mode
selected by cable Adapter Cable Order Number Adapter Cable Order Number
2379
2379
T+ EuroBiMix
T+ EuroBiMix
turn both TEMPO+ AGCs OFF!
2707
2707
Remote Battery Pack
MONAURAL
MIX mode
EXT mode
Solaris Adapter
Cable
Listening Mode
selected by switch Adapter Cable Order Number
1847
Phonic Ear Solaris PE 571T + PE 572R
(or PE 575 R)
www.phonicear.com
Dimensions
Weight
Operation time
Audio bandwidth
Channels
76 x 58 x 21 mm
3 x 2.3 x 0.83”
100 g / 3.5 oz
10 h (rechargeable AA)
20 h (disposable AA)
100 – 5,000 Hz
40 (country specific)
76 x 58 x 21 mm
3 x 2.3 x 0.83”
100 g / 3.5 oz
10 h (rechargeable AA)
20 h (disposable AA)
100 – 5,000 Hz
40 (country specific)
Transmitter
PE 571 T Receiver
PE 572 R
Description: