Radio Shack 920SR User Manual

216MH z

user guide

920SR speaker
921T body-worn transmitter
922T handheld transmitter
923C charging stand

contents

introduction . . . . . . . . . . . . . . . . . . . . . . .1

understanding sound field . . . . . . . . . . . .2

setup tips . . . . . . . . . . . . . . . . . . . . . . .3-5

daily operating tips . . . . . . . . . . . . . . . .6-8

parts and accessories included

with system . . . . . . . . . . . . . . . . . . . . . 9 -10

920SR column speaker features . . .11-14
921T body-worn transmitter features . .15-16

922T handheld transmitter features . . . .17

923C charging stand features . . . . . . . . .18

system setup and operation . . . . . .19-28

920SR speaker placement

and mounting . . . . . . . . . . . . . . . . . . .29-34

921T body-worn transmitter

operation . . . . . . . . . . . . . . . . . . . . . . . .35-40

922T handheld transmitter

operation . . . . . . . . . . . . . . . . . . . . . . . .41-46

aux in – connecting to

TV, CD, VCR, etc. . . . . . . . . . . . . . . . . . . . . .47

aux out – connecting to

personal devices . . . . . . . . . . . . . . . . .48-49

additional system accessories . . . . . . 50- 51

troubleshooting . . . . . . . . . . . . . . . . . 52- 53

Radium channel numbers and

corresponding frequencies . . . . . . . . . . . . 54

product specifications . . . . . . . . . . . . . 55 -5 7

warranty . . . . . . . . . . . . . . . . . . . . . . 58-60

regulatory approvals and clearances . .61-64

introduction

Congratulations on the purchase of your new Radium sound field system! With proper care
and use it will become one of your most valuable classroom educational tools. Students will
be able to consistently and easily understand the teacher, regardless of their location in the
classroom, or competing internal or external background noise. Teachers can now speak all
day in their normal voice without having to raise their voice to get their students’ attention.

Numerous studies show that classrooms using sound field enjoy better student comprehen­sion, increased student participation, better grades and fewer behavioral referrals.

Read this manual carefully to become familiar with your system and to get the most out of
its many features and options.

1

understanding sound field and its benefits

without sound field

• distance

• noise

• echo

• distance

• noise

• echo

?

?

cough!

with sound field

2

setup tips

IMPORTANT!

Be sure you place your Radium speaker and transmitter units on their charger overnight –
for a minimum of 12 hours – before turning the power on and/or using them for the first
time. Failing to do so can reduce battery capacity.

Basic setup tips
First – Identify a front corner of the room – the location from where the teacher

normally teaches.
Second – Take a good look around, paying close

attention to power outlet and other electronic
equipment locations. Ideally, the speaker should
be placed at a 5-foot distance from other elec­tronic equipment, such as computers or radios.

Third – Determine whether to mount the
speaker on the wall as shown in diagram 1, or
place it on a sturdy surface using the T-bar table

3

diagram 1

setup tips (cont’d)

mount stand in diagram 2. In either case,

diagram 2

the speaker should be placed at a height of
3 feet/1 meter from the floor, or at level
closest to the listener‘s ears.

Fourth – Consider whether other Radium,
EasyListener 2, or other radio-based active
learning systems are in use in the building,
and set transmitter and receiver channels
accordingly. Every transmitter in a building
should be on its own channel. See
diagrams in section 12 for guidance.

If placing the speaker on a table or surface top, consider the following:

• Choose a location that provides easy access for the teacher, and is out of
the way of students and main traffic areas. The speaker should be placed at

least 6 feet/1.8 meters away from where the teacher stands.

4

setup tips (cont’d)

• Choose a table or surface top that is sturdy.
Make sure the table or cabinet is structurally solid, sturdy and out of the way of foot traffic.

• Properly mount and securely fasten the T-bar speaker stand onto the bottom
of the speaker. Make sure the stand is screwed on tightly, and that the speaker does
not wobble when in an upright position.

If mounting on the wall, consider the following:

• The power supply cord needs to reach the wall outlet. Make sure the power
supply is within reach of the speaker from its wall-mounted position.

• The teacher should be able to reach the controls located on top of the speaker
once it’s mounted. Once the volume is set at a comfortable level, the speaker power
switch located on the lower right side of the speaker can be easily accessed by the
teacher. Follow the instructions on page 28 for setting the volume at the proper level.

• Never mount the speaker upside down, or horizontally. The speaker unit must be
mounted such that the controls are located at the top of the unit.

5

daily operating tips

In the morning –

• Turn transmitter power ’on’ and put microphone on.

• Turn speaker column power ’on’. The speaker should remain plugged into a wall
power outlet during the day – with the power in the ‘on’ position. Turn power switch
to the ‘off’ position at night after each use. The internal battery is not being used while
the speaker is plugged into a wall outlet.

• To operate using the internal battery as a portable system, simply unplug the
speaker before use and plug back in after use – making sure you return power switch
to ‘off’ position while plugged-in and charging. The battery takes 6 hours to reach a full
charge; at full charge, the speaker column battery will last up to 8 hours unplugged.

In the evening after each use –

• Turn transmitter power ’off ’, and place it back onto the charg ing stand; confirm
that the ‘charge’ indicator light illuminates. Transmitters not in use should always be
placed on the charging stand – this is their home base station.

• Turn speaker column power ’off ’. Leave speaker plugged into wall power outlet,
but confirm that the power has been turned ‘off.’

6

daily operating tips (cont’d)

Battery care and maintenance tips –

• The speaker battery will last approximately 2 years depending on usage.

• When not in use, leave speaker plugged into wall outlet with power switch in
‘off’ position.

• Keep speaker away from heating units – use/store in a cool dry place.

• When using speaker battery power (unplugged from wall), always remember to return
power switch to ‘off’ position after use.

• Never mount/use speaker horizontally or upside down. Controls should be accessible
from top of unit.

• Plan on buying new NiMH batteries for your transmitter every 12 months. Alkaline
batteries can also be used as back-ups, however, the 923C charger will not recharge
alkaline batteries. Never attempt to recharge alkaline batteries – this will cause damage
to the unit and void the product warranty.

• Remember to charge all batteries overnight before initial use.

7

daily operating tips (cont’d)

Do not coil the microphone – since it also acts as your antenna, coiling or wrapping the
cord will affect its range and may also reduce its life.

Speak at a normal level – the system is projecting your voice for you.

8

parts and accessories included with system

1

2

3

4

and/

or

5

6

7

8

or

9

9

10

11

12

13

1 column speaker receiver

(920SR)

2 body-worn transmitter

(921T)

and/or

handheld transmitter
(922T)

3 plug-in mic for body-worn transmitter

(AT0655 shown)

4 charg ing stand

(923C)

5 power supply, receiver

(040-7402-106)

6 power supply, charging stand

(AT0819)

7 receiver antenna

(AT0831)

8 speaker table stand

(AT0823)

or

wall mounting bracket (set of 2)
(AT0820)

9 elastic belt

(AT0712)

10 AA rechargeable NiMH batteries

(AT0807)

11 channel changer screwdriver

(330-3000-101)

12 auxiliary input/output cable

(AT0532-05)

13 auxiliary input cable (3.5mm– dual RCA)

(300-6332-107)

10

920SR column speaker features (top)

11

8 9

1

2 4 6 7

3

5

10

11

12

1 power, low battery, and

reception status indicator
for channel A

2 power switch and volume

control for channel A

7 aux output level switch

See page 42 for level setting chart

8 antenna

9 wall mount hole

3 reception status indicator for

channel B

4 power switch and volume

control for channel B

5 tone control

6 aux input volume control

10 extra antenna hole (not used)

11 aux input jack (3.5mm, mono)

12 aux output jack (3.5mm, mono)

12

920SR column speaker features (front and back)

13

20

13

14

15

16

18

17

19

13 speaker grille

19 power jack

14 two built-in speakers

15 internal rechargeable battery

(non-user removable)

16 handle

17 main power on/off switch

18 power and charging indicator

20 channel selectors

14

921T body-worn transmitter features

15

front

back

3

1

4

2

921T body-worn transmitter features (cont’d)

top

5

6

1 belt clip

2 battery compartment

3 volume control

4 channel selector

5 microphone input (2.5mm)

6 3 position power switch

7

on

standby

(mute)

off

7 power and low battery indicator light

16

922T handheld microphone features

1 LED indicator light

2 3 position power switch

1
2

3

on

(mute)

3 channel selector

offstandby

4 battery compartment

4

5 channel selector key

(inside battery compartment)

5

17

923C charging stand features

front

1 power indicator

2 pocket 1 charg ing indicator

3 pocket 1 full charge indicator

1

3 4 5

2

4 pocket 2 charg ing indicator

5 pocket 2 full charge indicator

back

6 power switch

7 DC power socket

6

7

18

19

1

system setup and operation

attach antenna

Attach antenna to top of speaker

1

2

1

2

Turn metal base of antenna clock­wise until secured tightly (do not
over-tighten)

2

NOTE:Light is not illuminated
during normal battery operation

turn on main power

3

if using wall outlet

Plug power supply into

1

2

1

power/charging socket
Plug power supply into

2

wall socket
Turn speaker on

3

if using already charged battery

Turn speaker on

3

NOTE: Battery operating time is 5-8 hours.

20

3

charge battery

2

1

Red light=charging
Flashing red/green (equal duration)= 80-90% charged
Long flash green, short flash red= fully charged

NOTE:Light is not illuminated during normal battery operation

21

charge nightly after every use

Plug power supply into

1

power/charging socket

Plug power supply into wall socket

2

Recharging time is 8 hours if the battery is
completely discharged and 4 to 7 hours if
battery is only partially discharged.

NOTE: Battery operating time is 5-8 hours.

4

insert batteries in body-worn transmitter

Switch power off

1

1

Remove battery cover

2

(push and slide off)

3

_

+

2

+

_

Insert two AA rechargeable

3

NiMH batteries

WARNING: Never recharge alkaline
batteries! This will cause damage to the
unit and will void the product warranty.

22

5

insert batteries in handheld microphone

Switch power off

1

AA Rechargeable

NiMH batteries

+

_

_

+

23

Remove battery cover

1

3

2

2

(turn counter-clockwise)

Insert two AA rechargeable

3

NiMH batteries

WARNING: Never recharge alkaline
batteries! This will cause damage to the
unit and will void the product warranty.

6

charge transmitter(s)

Never attempt to recharge alkaline batteries! This will cause damage to
the unit and will void the product warranty.

charger back

charger front

4

Plug power supply into power jack

1

3

2

1

4

5

on back of charger stand

Plug power supply (AT0819) into

2

wall socket
Turn charger on

3

Turn transmitters off while charging

4

When green charge ready indicator

5

lights, the transmitter batteries are
full charged and ready to go. (4 to 5
hours)

24

25

7

wait until green charge indicators light (4-5 hours)

PWR:

1

Red light = charger is turned on

CHARGING:

2

Amber light = units are being charged

READY:

3

Green light = units are fully charged

ERROR:

4

Blinking Amber light = charging
error. Improper batteries have been
detected. Check your batteries and

2

1

3

4

replace as required. Only NiMH AA
batteries can be charged. Unit will
not charge disposable Alkaline bat­teries or NiCad batteries.

8

select channel

1

921T

match

match

922T

Use a screwdriver to adjust the

1

Channel A selector on the back of

the speaker to match the channel
number of either the 921T and/or
the 922T transmitter(s).

NOTE: Consider whether other Radium,
EasyListener 2, or other radio-based
active learning systems are in use in
the building, and set transmitter and
receiver channels accordingly. Every
transmitter in a building should be on
its own channel. See diagrams in section
12 for guidance.

26

27

9

activate receivers

3

2

1

Turn receiver on by turning Channel A

1

and/or Channel B volume control
knob(s) to the right

Check power indicator light

2

(remember that main power must
also be on – see

Flash red once = adequate power
Continuous red =low battery
No light = battery does not have

power and requires recharging or
power supply is not connected properly

Turn on a 921T or 922T transmitter

3

and check FM indicator light(s):
Green= receiving FM signal

2 ):

10

setting FM volume

Follow steps or below to adjust FM

volume

needed to set the volume level. It is difficult to
hear your own voice and make adjustments to it.

NOTE: The average volume setting is in the
11:00 position (see photo), but may change
depending on room acoustics and noise level.

With a sound level meter - Take a level reading in the “A” setting in the center of the

1

room during normal classroom activity, and another reading of the teacher's amplified voice
(without the class activity). The level of the teacher's voice should be set between 10-15
decibels above room noise level.

Without a sound level meter - First, ask someone other than yourself (if you are the

2

teacher) to listen to the amplified voice and make volume adjustments. An ideal volume level
is achieved when the listener can hear the amplified voice at a comfortable level and the vol­ume level from the speaker and teacher’s mouth is comparable. If you can hear yourself
through the loudspeakers, the volume setting may be too high and should be decreased.

setting to proper level. Two people are

2

1

28

11

1m/3ft

29

920SR speaker placement and mounting

speaker positioning

Place speaker in a corner of the room facing
listeners. Mount speaker on wall using brack­ets or place speaker on a surface using a
speaker stand. The bottom of the speaker
should be about 1 meter/3 feet from the floor.
(See setup tips on page 3).

12a

channel mapping: placement diagram for multiple
system installations (double channel - 8 rooms total)

= suggested placement of

920SR speaker

Channel A: 44
Channel B: 54

Channel A: 48
Channel B: 58

Channel A: 41
Channel B: 51

hallway

Channel A: 45
Channel B: 55

Channel A: 46
Channel B: 56

Channel A: 47

Channel B: 57

Channel A: 42
Channel B: 52

Channel A: 43
Channel B: 53

30

12b

channel mapping: placement diagram for multiple
system installations (single channel - 16 rooms total)

31

Channel: 41

Channel: 45

Channel: 51

Channel: 55

hallway

Channel: 42

Channel: 46

Channel: 52

Channel: 56

Channel: 43

Channel: 47

Channel: 53

Channel: 57

hallway

Channel: 44

Channel: 48

Channel: 54

Channel: 58

13a

wall mounting (option 1)

Attach brackets to wall

1

2

AT0820

Screw mounting brackets to top and

2

bottom of speaker

1

32

13b

33

mounting on floor stand (option 2)

Screw speaker stand into hole on

1

bottom of speaker.

• Turn clockwise to tighten

• Turn counter-clockwise to loosen

1

AT0823

AT0824 floor stand
is also available

13c

seal wall mounting hole if using table stand

Place plastic plug into mounting

1

bracket hole on top of speaker to
keep out dust

1

34

14

35

921T body-worn transmitter operation

plug microphone in

Plug microphone cord into

Boom mic cord

1

1

mic jack on top of body-worn

transmitter

15

put on microphone and adjust for proper distance
from mouth

Maximum distance from mic to mouth is 6 in/(15cm); 3 in/(7.5cm) is ideal.

optimum

AT0655 boom mic (two wearing options)

performance:

7.5cm/3in

AT0816 collar mic

performance: ★★★

optional

★★★★

AT0814 earhook mic

performance: ★★★★

15cm/

6in max.

AT0291-L directional lapel mic

performance: ★★

36

16

turn power on

Switch power on

1

37

1

2

Check indicator light:

2

Continuous green = adequate power
Continuous red =low battery

battery life

NiMH rechargeable AA = 12 hours (approx.)
Alkaline disposable AA =15 hours (approx.)

WARNING: Never recharge alkaline
batteries! This will cause damage to the unit
and will void the product warranty.

17

adjust transmitter(s) frequency

1

921T

2

922T

must match

must match

920SR

Use a screwdriver to turn frequency

1

selector to channel number that match­es the channel set on column speaker

If using both body-worn and hand-

2

held transmitters set one transmitter
channel to match a Channel A on
the speaker column, and the other
transmitter channel to match
a Channel B channel on the
speaker column.

NOTE: Never operate two transmitters on
the same channel or interference will result.
To use two transmitters, set the first to
match receiver Channel A and the second
to match receiver Channel B.

38

18

39

adjust body-worn transmitter volume

1

2

Increase transmitter volume for

1

greater mic sensitivity and sound
clarity

Reduce transmitter volume if feed-

2

back occurs

19

activate standby/mute mode

1

Activate standby mode to

1

eliminate white noise when
not speaking

MUTE: Standby mode can also be used as
a microphone/transmitter mute switch.
The mute feature allows teachers to have a
private conversation without needing to
turn the transmitter off.

40

20

41

922T handheld transmitter operation

turn power on

Turn power on by pushing power

1

switch up

1

21

check indicator light

Check indicator light:

1

Continuous green = adequate power
Continuous red = low battery

1

battery life

NiMH rechargeable AA = 12 hours (approx.)
Alkaline disposable AA = 15 hours (approx.)

WARNING: Never recharge alkaline
batteries! This will cause damage to the unit
and will void the product warranty.

42

22

43

remove channel adjustment key

1

2

2

1

Open battery compartment door and
remove batteries

Remove channel adjustment key

23

adjust transmitter channel to match receiver channel

Using adjustment key, turn channel

1

frequency selector to channel number
that matches the channel set on
column speaker

atch

ust m

1

m

920SR

NOTE: Never operate two transmitters on
the same channel or interference will result.
To use two transmitters, set the first to
match receiver Channel A and the second
to match receiver Channel B.

44

24

45

standby mode

Activate standby mode to mute

1

voice and eliminate white noise
when not speaking

1

25

transmitters that can be used with 920SR receiver/speaker

★★★★ = most compatible ★ = least compatible

transmitter

921T ✔ ★★★★ none
Radium

922T ✔ ★★★★ none
Radium

330T ✔ ★★★★ none
EasyListener 2

300TS-216 ✔ ★★★ none
Sprite

Lexis transmitter ✔ ★★★ ✔
(as mic)

Phonak ✔ ★★★ ✔
Campus S TX5

Phonak N/A N/A N/A
HandyMic TX3

compatible performance accessory

(no adaptor

cord required)

rating needed

comments

best when used with AT0655 boom mic

a) Lexis requires the use of the AT0655R boom mic
b) may require use of external antenna for better

range (389-02-120-02)
c) set microphone to omni mode
d) set sensitivity level to HI

due to feedback, use of external boom mic from
Phonak is recommended

a) built-in mic prone to feedback
b) requires use of external mic, which the

HandyMic does not accommodate

46

26

aux in – connecting to TV, CD, VCR, etc.

connecting speaker to TV, CD, VCR, etc.

Using either the AT0532-05 or

1

300-6332-107 adaptor cords,

1

2

connect VCR, TV, CD, computer
or other audio source to AUX IN
port on top of speaker

Use AUX IN VOLUME control to

2

adjust volume

47

AT0532-05

or

VCR

300-6332-107

NOTE: AUX IN can be used simultaneously
with both Channel A & B.

27

AT0529A

Ant jack

2

aux out – connecting to personal FM devices

connecting to SOLARIS, EASY LISTENER, SPRITE or other transmitter

(for rebroadcast of audio to students with hearing impairment)

Connect AT0532-05(ft) cord to

1

3

AT0532-05

Aux In

1

1

AUX input jack of either SOLARIS,

EASY LISTENER

,SPRITE, or other trans-

mitter. Connect other end of cable to

AUX OUT port on top of speaker.

Connect antenna AT0529A (included

2

with transmitter system) to Mic/Ant
jack on transmitter

Refer to level setting gide on next

3

page to identify proper level for
your transmitter

PE 571T PE 300T PE 300TS

OR OR

48

28

aux out transmitter compatibility chart and level setting guide

NOTE: Common transmitters and recommended level settings are shown below. Because the level
setting is universal, other transmitters not listed below may be used as well – simply set the aux

out

level to the position at which the receiver wearer hears a strong distortion-free signal.

product name/part aux in jack size aux out level setting

Easy Listener 300T 3.5mm High
Sprite 300TS 3.5mm High
Sprite 300TS-216 3.5mm High
Solaris 571T 3.5mm High
Lexis 871T transmitter 3.5mm High
Phonak Campus S TX5 3.5mm High
Phonak HandyMic TX3 3.5mm† High
Phonak MicroVox TX2 2.5mm* High

* For transmitters with a 3.5mm jack size, simply attach the transmitter to the AT0805 aux out accessory

cord. For 2.5mm products, use the aux out adapter plug (310-2544-1341)

† Requires special adaptor cord provided by Phonak (P/N 52117) and Radio Shack adaptor (P/N 274387).

49

additional system accessories

microphone options

AT0655

behind-the-neck
boom microphone

AT0814

earhook microphone

receiver accessories

AT0820

wall mounting bracket
(set of 2)

AT0823

speaker table stand

AT0816

FM collar microphone
with mute switch

AT0824

speaker floor stand

AT0291-L

directional microphone
with lavalier cord

AT0822

carrying bag

AT0801

aux-box (adds four
additional audio inputs)

50

additional system accessories (cont’d)

transmitter accessories

AT0532-15

auxiliary input/
output cable
(3.5mm–dual RCA)
(15ft/4.6m)

51

AT0529A

transmitter antenna

310-2544-1341

aux-out adaptor plug
(3.5mm– 2.5mm)

AT0807

AA rechargeable
NiMH batteries

troubleshooting

no FM reception (Channel A, Channel
B indicator does not have green light)

• Verify the transmitter is turned on

• Verify the frequency number on the trans­mitter matches the frequency number
on receiver

• Verify transmitter batteries are charged

• Verify speaker antenna is connected properly

weak sound from speaker

• Increase volume on the speaker

• Turn up transmitter volume

• Make sure AT0655 boom microphone (or
other mic) is being worn correctly

speaker is receiving a signal but no
sound is coming out

• Verify microphone is connected properly to
transmitter and is working correctly

feedback from speaker

• Turn down the volume on the transmitter

• Turn down the volume on the speaker

• Make sure the person wearing the transmit­ter is not too close to the speaker

• Move speaker so that it is facing away from
presenter and toward listeners

• Make sure AT0655 boom microphone (or
other mic) is being worn correctly

52

troubleshooting (cont’d)

speaker does not turn on (power
indicator does not flash red)

• Verify main power switch on the bottom of
the unit is turned on

• Verify Channel A and Channel B volume
control knobs are turned on

• Verify power supply is plugged securely into
speaker and wall socket

• Verify wall socket works

speaker battery does not charge

• Connect power supply to speaker and
charge for four hours. If speaker battery
does not hold a charge, send the unit to
Phonic Ear Service department for replace­ment (battery must be replaced after one
year of continuous use).

53

speaker is picking up FM interference
or hum

• Check to make sure no other wireless sys­tems are operating on similar frequencies

• Check to make sure the system is not placed
too close to a computer

• Check to make sure metal objects are not
placed too close to transmitter or speaker
(i.e. jewelry, metal shelves)

amber charge light is flashing when I
attempt to charge my transmitter

• Replace your batteries with a set of new
NiMH cells (AT0807).

Radium channel numbers and corresponding frequencies

Channel # Channel A Channel # Channel B

41 . . . . . . . . . . . 216.025 MHz 51 . . . . . . . . . . 216.525MHz

42 . . . . . . . . . . .216.075MHz 52 . . . . . . . . . .216.575MHz

43 . . . . . . . . . . . 216.125MHz 53 . . . . . . . . . . 216.625MHz

44 . . . . . . . . . . .216.175MHz 54 . . . . . . . . . .216.675MHz

45 . . . . . . . . . . .216.225MHz 55 . . . . . . . . . .216.725MHz

46 . . . . . . . . . . .216.275MHz 56 . . . . . . . . . .216.775MHz

47 . . . . . . . . . . . 216.325MHz 57 . . . . . . . . . . 216.825MHz

48 . . . . . . . . . . .216.375MHz 58 . . . . . . . . . .216.875MHz

54

product specifications

two channel column speaker: 920SR

carrier frequency range/ 216.025–216.875MHz

frequencies 16 total
modulation FM (F3E)

output power maximum 36W @ 4Ω x2

power requirements 110V/240V AC adaptor 15V DC/2A,

Battery 12V/2.7A
(rechargeable, sealed lead-acid,
1- 1.5 year life with continuous usage)

frequency response 100Hz –9kHz

total harmonic distortion <2%

system signal-to-noise >65 dB (at rated output)

ratio

inputs AUX x 1, power & charge

output AUX x 1 (High: 700 mV/Low: 100mV)

controls tone, channel A & channel B

power/volume, aux volume,
high/low output, master power,
channel selector

55

dimensions (WxHxD) 100 x 660 x 145 mm/ 3.9 x 26 x 5.7 in

weight 5kg/11lbs

recharging time 8 hours for initial charging

4– 7 hours for recharging

battery operating time 5–8 hours (continuous operation)

speaker stand optional table stand (AT0823),

floor stand (AT0824), or
wall brackets (AT0820)

de-emphasis 75µs

squelch RSSI

product specifications (cont’d)

body-worn transmitter: 921T

carrier frequency range/ 216.025 –216.875MHz

frequencies 16 total
modulation FM (F3E)

total harmonic distortion <1.5%

frequency response 50Hz to 12KHz

frequency stability .0005%

maximum modulation ± 25KHz, with level limiting

pre-emphasis 75µs

dynamic range 100dB

operating range >34m/110ft

dimensions (WxHx

inputs/outputs 2.5mm microphone input jack

D

) 65 x 90 x 25 mm/ 2.5 x 3.5 x 1 in

weight 51g/1.8oz

controls on/standby/off/channel selector/volume

battery NiMH rechargeable (1600mA);

alkaline disposable (2AA)

battery life NiMH rechargeable: 12 hours (approx.)

alkaline disposable: 15 hours (approx.)

recharging time 6 hours

56

product specifications (cont’d)

handheld mic transmitter: 922T

carrier frequency range/ 216.025–216.875MHz

frequencies 16 total (see chart below)

mic dynamic microphone

antenna built-in

RF output 15mW

battery NiMH rechargeable battery;

alkaline disposable; 1.5V x 2 AA

battery life NiMH rechargeable: 12 hours (approx.)

alkaline disposable: 15 hours (approx.)

recharging time 6 hours (NiMH batteries)

dimensions (dia x length) 54 x 237 mm/2.1 x 9.3 in

weight 230g/8.1oz

controls on/standby/off/channel selector

57

charging stand: 923C

power supply AC adaptor (DC 12V/0.5A)

indicator lights LED green = battery ready

recharging time NiMH (1300mA): 4 hr

dimensions (Wx

controls on/off switch

LED orange = recharging
LED red = power on
LED blinking orange = fault (battery bad)

xD) 135 x 47 x 230 mm/5.3 x 1.9 x 9 in

H

weight 360g/12.7oz

warranty

time period of warranty

This warranty will go into effect upon the date
of purchase and will stay in effect as long as
the instrument remains the property of the orig­inal owner. E
O

NWAVE

ASYLISTENER 2

™

have a 3-year warranty. All other prod-

™

,VOCAL

IGHT

™

and

ucts have a 1 year warranty.

what is covered by this warranty

Any electronic component, which because of work­manship, manufacturing or design defects, fails to
function properly under normal use during the life of
this warranty will be replaced or repaired at no charge
for parts or labor, when returned to the factory
service center. Transportation in is paid by the cus­tomer. If it is determined that repair is not
feasible, the entire unit may be replaced with an equiv­alent unit upon mutual agreement of the
manufacturer and customer.

what is not covered by this warranty

This limited warranty does not apply to:

1. Malfunctions resulting from abuse, neglect
or accident

2.

I

nstruments connected, installed, used or adjusted
in any manner contrary to instructions provided
by the manufacturer

3. Consequential damages and damages resulting
from delay or loss of this instrument. The exclu­sive remedy under this warranty is strictly limited
to repair or replacement as herein provided

4. Products damaged in transit unless investigated
by the shipper and returned to the warrantor
with the investigation report

5. Peripheral accessories as itemized within the
product specification sheet as applicable, when
such items are not returned within 1 year from
original purchase

6. Batteries if applicable

58

warranty (cont’d)

Phonic Ear Inc. reserves the right to make changes in
the design or construction of any of its instruments at
any time without incurring any obligation to make any
changes whatsoever on units previously purchased.

This warranty is in lieu of all other expressed warranties.
All expressed and implied warranties will terminate upon
the expiration of this written warranty . No repr esentative
or person is authorized to represent or assume for us any
liability in connection with the sale or use of our prod­ucts other than as set forth above.

what to do if you have questions

If you have any questions about service, call the service
department at

59

800.227.0735, then press 7.

what to do if you need service

If you require service under the warranty terms, obtain a
service order form either online at

com/support.asp

service department at

or through our U.S. customer

800.227.0735, then press 5

www.phonicear .

(or +1.707.769.1110 outside the U.S.). Fill the form
out completely remembering to include:

1. Description of the problem

2. Your billing address

3. Your shipping address (if different from

billing address)

4. Contact name and phone number

5. A P.O. number if the equipment is not under a

warranty or service contract

warranty (cont’d)

Then, carefully package the equipment in the
original shipping container

to prevent damage

and send it postpaid to the service center near you:

USA/International:

Phonic Ear Inc.

3880 Cypress Drive
Petaluma, CA 94954-7600
U.S.A.

In Canada:

Phonic Ear Ltd.

10-7475 Kimbel Street
Mississauga, Ontario
L5S 1E7 Canada

what to do if you have questions

If you have any questions about service, call the service
department at

800.227.0735, then press 7.

about your batteries

To ensure that your batteries are as fresh as possible
upon arrival, we have intentionally not installed
them in your equipment.

install your batteries in your equipment now,
then charge overnight before initial use

(see user guide for charging procedure).

avoid battery corrosion

To avoid battery corrosion and damage to your
equipment,

rechargeable alkaline batteries.

do not recharge disposable or

Before charg­ing any Phonic Ear equipment make sure only
NiMH rechargeable batteries are installed. As an
added precaution, remove batteries if the equipment
will not be used for several weeks.

60

regulatory approvals and clearances

transmitter

This transmitter is authorized by rule under the Low
Power Radio Service (47 C.F.R. Part 95) and must
not cause harmful interference to TV reception or
United States Navy SPASUR installations. You do
not need an FCC license to operate this transmitter.
This transmitter may only be used to provide: audi­tory assistance to persons with disabilities, persons
who require language translation, or persons in edu­cational settings; health care services to the ill; law
enforcement tracking services under agreement with
a law enforcement agency; or automated maritime
telecommunications system (AMTS) network control
communications. Two-way voice communications
and all other types of uses not mentioned above are
expressly prohibited.

This device may not interfere with TV reception or
federal government radar, and must accept any inter­ference received, including interference that may
cause undesired operation.

61

IM PO RTANT NOTE: To comply with FCC RF

exposure compliance requirements, only use sup­plied antenna that is sold with this transmitter.
Use of any other antenna which has not been
approved by the manufacturer will violate FCC
rules and regulation and void the user’s authority
to operate this device. This device and its antenna(s)
must not be co-located or operating in conjunction
with any other antenna or transmitter.

regulatory approvals and clearances (cont’d)

receiver: part 15, subpart B

Radium Receiver/Speaker 920SR

Tested to comply with

FCC Standards

FOR HOME OR OFFICE U SE

This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable
protection against harmful interference in a resi­dential installation. This equipment generates,
uses and can radiate radio frequency energy and,
if not installed and used in accordance with the
instructions, may cause harmful interference to

radio communications. However, there is no guar­antee that interference will not occur in a particu­lar installation. If this equipment does cause
harmful interference to radio or television recep­tion, which can be determined by turning the
equipment off and on, the user is encouraged to
try to correct the interference by one or more of
the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment

and receiver.

• Connect the equipment into an outlet on a

circuit different from that to which the receiver
is connected.

• Consult the dealer or an experienced radio/TV

technician for help.

62

regulatory approvals and clearances (cont’d)

FCC notes

The Radium sound field system is approved by
the FCC (Federal Communications Commission).
The use of the system may be governed by specific
FCC rules and FCC licensing or notifications may
be required. Consult your local FCC office for
detailed information.

Phonic Ear FM receivers and FM transmitters,
when required, are approved by the Federal
Communications Commission (FCC) in the U.S.
and Industry Canada. Other government
approvals are available upon request. (Other inter­national regulations may also apply.)

Any changes or modifications made to any gov­ernment-approved element of this instrument,
without the express approval of Phonic Ear Inc in
writing, could void the user's authority to operate
those elements of the system.

63

Par t 95

This transmitter is authorized by rule under the
Low Power Radio Service (47 CFR Part 95) and
must not cause harmful interference to TV recep­tion or United States Navy SPASUR installa­tions. You do not need an FCC license to oper­ate this transmitter. This transmitter may only be
used to provide auditory assistance to persons
with disabilities, persons who require language
translation, or persons in educational settings;
health care services to the ill; law enforcement
tracking service under agreement with a law
enforcement agency; or automated maritime
telecommunication system (AMTS) network
control communications. Two-way voice commu­nications and all other types of uses not men­tioned above are expressly prohibited.

regulatory approvals and clearances (cont’d)

This device may not cause interference and must
accept any interference received, including inter­ference that may cause undesired operation.

These devices may not interfere with TV recep­tion or Federal Government radar.

IC notes

This Class B digital apparatus complies with
Canadian ICES-003.

Cet appareil numérique de la classe B est
conforme à la norme NMB-003 du Canada.

The term "IC:" before the radio certification
number only signifies that Industry of Canada
technical specifications were met.

If TV channel 13 is used in the area, the installer
shall reduce or adjust the RF radiated power so
that near-by TV channel 13 receivers do not
receive radio interference from the system
installed. Suggestions: A test with a TV receiver
equipped with "rabbit-ear antenna" and tuned to
channel 13 should be conducted, at the perimeter
of the users' intended coverage area and not
over-lapping other user's areas without the latter's
consent. If this does not solve the problem, a
channel near the 217 MHz edge and not near
216 MHz should be tried.

This product has been cleared

by the U.S. Food and Drug
Administration for use by persons with normal
hearing and hearing impairment.

64

u.s.a. 800.227.0735, then press 5•canada 800.263.8700 • international [phone]

© 2005 Phonic Ear Inc. Phonic Ear and the names of Phonic Ear products are trademarks or registered trademarks of Phonic Ear Inc. in the U.S. and

other countries. Product specifications and accessories subject to change without notice. 821-7403-101/Rev. D/4724 0205