Williams Sound Transmitter T36 User Manual

MAN 142A ©2008 Williams Sound Corp.

Thank you for purchasing the T36 transmitter from Williams Sound. The T36 is
designed to operate with a wideband FM, 72–76 MHz receiver. For more infor­mation on available receivers, visit www.williamssound.com or contact Williams
Sound at 800-843-3544 or 952-943-2252

Transmitter Model T36, 72-76 MHz

Instructions For Use and Care

PACEMAKER SAFETY

1. Before using this product with a
pacemaker or other medical device,
consult your physician or the man­ufacturer of your pacemaker or
other medical device.

2. If you have a pacemaker or other
medical device, make sure that you
are using this product in accordance
with safety guidelines established by
your physician or the pacemaker
manufacturer.

BATTERY SAFETY & DISPOSAL

Do not attempt to recharge disposable
batteries, which may explode, release
dangerous chemicals, cause burns, or
other serious harm to the user or
product.

RECYCLING INSTRUCTIONS

Help Williams Sound protect the
environment! Please take the
time to dispose of your equipment
properly.

Product Recycling:

Please do NOT dispose of your
Williams Sound equipment in the
household trash. Please take the
equipment to an electronics recy­cling center; OR, return the product
to the factory for proper disposal.

Battery Recycling:

Please do NOT dispose of used
batteries in the household trash.
Please take the batteries to a retail
or community collection point for
recycling.

07/29/08

CAUTION!

CAUTION!

®

2

OPERATING INSTRUCTIONS

IMPORTANT: If Alkaline (non­rechargeable) batteries are being
installed, slide the battery selection
switch in the battery compartment to
the “Alkaline” position. See FIG. A
below. If installing NiMH (or recharge­able) batteries, slide the battery selec­tion switch to the “NiMH” position.

1. Install AA batteries: Open the battery
compartment by pressing and lifting
the tab on the back of the transmitter
with your finger. To remove depleted
batteries, pull up on the fabric strip.

Press the batteries into place over the
fabric strip. Be sure to observe proper
polarity (+/-). Damage due to
improper battery installation may
void the warranty on the product.
Close the battery door. The “Power
On” LED on top of the unit will flash
when the batteries are getting low;
you may continue to use until the unit
quits operating, then replace or
recharge batteries.

Mic Jack

Channel
Selector

Power On Indicator

Auxiliary
Input

Power On/Off/Mute

2. Plug the microphone cord (sold separate­ly) into the “Mic Jack” on top of the
transmitter (FIG. B).

3. Optionally, plug in a desired audio
source such as a CD or MP3 player
using the “Auxiliary Input” jack (WCA
087 stereo auxiliary input cable includ­ed). If mic and auxiliary sources are
used together, the audio will be mixed.
If only auxiliary source is desired, the
mic can be muted. Do not remove the

mic from the “Mic Jack” as the cable
is also the transmitting antenna!

4. Turn the unit on: press and hold the
“ON/OFF/MUTE” button for three sec­onds. The “Power On” indicator should
illuminate green.

5. Select the desired operating frequency.
Use the “Channel Selector” knob to
select any of the 16 available channels
on 72-76 MHz. Refer to the channel
selection chart, FIG C.

Make sure the receiver being used is
operating on the same frequency as
the T36 transmitter!

AA

AA

–

+

-

Gain

+-

AUX

2:1

1:1

FIG. A: Battery Selection Switch

FIG. B: T36 User Controls

®

3

NOTE: Up to eight T36’s can operate
simultaneously on channels 1-8 (FIG. C)
when used with an R35-8 receiver.

6. Position the headset microphone boom
as close to the speaker’s mouth as pos­sible without actually touching. Lapel
clip microphones should be attached to
a collar or lapel, as close to the speak­er’s mouth as possible.
The transmitter can be placed in a pocket,
or clipped onto a belt or waistband.

7. When you pause from speaking, mute
the microphone by pressing the
“ON/OFF/MUTE” button once
momentarily. The “ON/OFF/MUTE”
button will flash red. To unmute the
mic, press the “ON/OFF/MUTE” but­ton once momentarily again.

IMPORTANT: When the T36 trans­mitter is not being used, remember to
turn the unit OFF by pressing and hold­ing the “ON/OFF/MUTE” button for
three seconds. The Power On indicator
should not be lit.

G

AINCONTROL

The gain control can be used to adjust
the volume level on both the micro­phone and auxiliary input.

To adjust the volume level, open the
battery door and locate the Gain
Control (FIG. D). Use a plastic tuning
wand and rotate to increase “+” or
decrease “-” the gain.

A

UXILIARYINPUTLEVEL

The auxiliary input level can be used
to adjust the auxiliary input level only.

To adjust, open the battery door and
locate the Auxiliary Input Level (FIG.
D). Use a plastic tuning wand and
rotate to increase “+” or decrease “-”
the input level.

Note: When using an auxiliary audio
source, if the “Aux Input Level” is set
too high, there can be increased audio
distortion and decreased battery life.

AA

AA

–

+

+

–

Comp

CH Lock

-

Gain

+-

AUX

+

22:1

1:1

1. Gain Control

2. Auxiliary Input Level

3. Compression Selector

4. Channel Lock

1

234

T36
CH

1
2
3
4
5
6
7
8

Freq.

(MHz)

72.1

72.3

72.6

72.8

74.7

75.4

75.7

75.9

Letter

A
B
O
P
I
R
G
H

R35-8

CH

1
2
3
4
5
6
7
8

T36
CH

9
10
11
12
13
14
15
16

Freq.

(MHz)

72.5

72.2

72.4

72.7

72.9

75.3

75.6

75.8

FIG. C: Channel Selection Chart FIG. D: Configuration Controls

R35-8

CH

-

-

-

-

-

-

-

-

Letter

C
K
N
D
E
J
S
T

®

4

COMPRESSION SELECTOR

By default, the T36 compression is set to
“Off” for normal operation, or “1:1” com­pression. For hearing assistance applica­tions, the compression selector can be set
to “On” for “2:1” compression.

To change this setting, open the battery
door and locate the Compression
Selector (FIG. D).

To turn on compression (2:1), use a
plastic tuning wand and slide the
“Comp” switch to the position marked
“2:1.” To turn off, slide the “Comp”
switch to the position marked “1:1.”

C

HANNEL LOCK

By default, the T36 channels are
unlocked to allow the user to change
frequencies as needed. If desired,
channels can be locked to prevent
users from changing the channels.

Note: The Channel Lock only locks the
electronic frequency; it does not physi­cally lock the channel selector knob.

To lock or unlock channels, open the
battery door and locate the Channel
Lock (FIG. D). To lock the current
channel, slide the “CH Lock” switch to
the position marked “ “. To unlock
the channels, use a tuning wand and
slide the “CH Lock” switch to the
position marked “ “.

BATTERY INFORMATION

The T36 transmitter can use two (2)
alkaline AA batteries (BAT 001) or
two (2) AA rechargeable batteries
(BAT 026). Note: The BAT 026 pro­vides longer life than other recharge­able batteries. For best product per­formance, do not substitute other
rechargeable batteries and chargers.

L

OW BATTERY INDICATOR

The “Power On” indicator (FIG. B) will
flash to indicate low battery.

EXPECTED BATTERY LIFE

Alkaline batteries
(BAT 001): 30 hours

Rechargeable NiMH Batteries
(BAT 026): 20 hours

Min.14 hour recharge time.

If the T36 transmitter is equipped with
rechargeable batteries, up to 12 units
can be charged at one time in the
optional CHG 3512 or CHG 3512
PRO multi-charger, or up to two units
in the CHG 3502 dual bay charger. For
ordering information, please contact
Williams Sound at 800-843-3544.

®

5

BELT CLIP INSTALLATION

To Install: Position the belt clip on

the rear of the T36 transmitter as
shown in FIG. E. Turn the belt clip
180˚ left or right as shown in FIG. F.
The belt clip is now installed and
ready for use.

To Remove: Turn the belt clip 180˚

so the open end of the clip points to
the top of the unit as shown in FIG.
E. Gently pull the belt clip away from
the unit to remove.

LIMITED WARRANTY

Williams Sound products are engi­neered, designed and manufactured
under carefully controlled conditions
to provide you with many years of
reliable service. Williams Sound war­rants the T36 transmitter against
defects in materials and workmanship
for FIVE (5) years. During the first
five years from the purchase date, we
will promptly repair or replace the
T36 transmitter.

Earphones, headphones, batteries,
cables, carry cases, and all other acces­sory products carry a 90-day warranty.
Chargers carry a one year warranty.

NOTE: THE MANUFACTURER IS
NOT RESPONSIBLE FOR ANY
RADIO OR TV INTERFERENCE
CAUSED BY UNAUTHORIZED
MODIFICATIONS TO THIS EQUIP­MENT. SUCH MODIFICATIONS
COULD VOID THE USER'S
AUTHORITY TO OPERATE THE
EQUIPMENT.

WILLIAMS SOUND HAS NO CON­TROL OVER THE CONDITIONS
UNDER WHICH THIS PRODUCT IS
USED. WILLIAMS SOUND,
THEREFORE, DISCLAIMS ALL
WARRANTIES NOT SET FORTH
ABOVE, BOTH EXPRESS AND
IMPLIED, WITH RESPECT TO THE
T36 TRANSMITTER, INCLUDING
BUT NOT LIMITED TO, ANY
IMPLIED WARRANTY OF MER­CHANTABILITY OR FITNESS FOR

FIG. E

FIG. F

®

6

A PARTICULAR PURPOSE.
WILLIAMS SOUND SHALL NOT
BE LIABLE TO ANY PERSON OR
ENTITY FOR ANY MEDICAL
EXPENSES OR ANY DIRECT, INCI­DENTAL OR CONSEQUENTIAL
DAMAGES CAUSED BY ANY USE,
DEFECT, FAILURE OR MALFUNC­TION OF THE PRODUCT,
WHETHER A CLAIM FOR SUCH
DAMAGES IS BASED UPON WAR­RANTY, CONTRACT, TORT OR
OTHERWISE. THE SOLE REMEDY
FOR ANY DEFECT, FAILURE OR
MALFUNCTION OF THE PRODUCT
IS REPLACEMENT OF THE PROD­UCT. NO PERSON HAS ANY
AUTHORITY TO BIND WILLIAMS
SOUND TO ANY REPRESENTATION
OR WARRANTY WITH RESPECT
TO THE T36 TRANSMITTER.
UNAUTHORIZED REPAIRS OR
MODIFICATIONS WILL VOID THE
WARRANTY.

The exclusions and limitations set out
above are not intended to, and should
not be construed so as to contravene
mandatory provisions of applicable
law. If any part or term of this
Disclaimer of Warranty is held to be
illegal, unenforceable or in conflict
with applicable law by a court of com­petent jurisdiction, the validity of the
remaining portions of this Disclaimer
of Warranty shall not be affected, and
all rights and obligations shall be con­strued and enforced as if this Limited
Warranty did not contain the particular
part or term held to be invalid.

If you experience difficulty with your
system, call Toll-Free for Customer
Assistance:

1-800-843-3544 (U.S.A.) or
[phone] (Outside the U.S.A.)

If it is necessary to return the system for
service, your Customer Service
Representative will give you a Return
Authorization Number (RA) and shipping
instructions.

Pack the system carefully and send it to:

Williams Sound Corp.
Attn: Repair Dept.
10321 West 70th Street
Eden Prairie, MN 55344

®

7

Dimensions: 4.1” L x 2.8” W x 1.1” H (104 mm x 71 mm x 28 mm)
Weight: 2.6 oz (74 g), no batteries
Housing Material: Shatter-resistant PC/ABS plastic
Battery Type: Two (2) AA 1.5 V non-rechargeable Alkaline batteries (BAT 001),

70 mA nominal current drain, 30 hours approx. life or

Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026), 70 mA

nominal current drain, 20 hours per charge approx., recharges in

14–16 hours, uses CHG 3502 or CHG 3512 Charger

Operating Freq’s: Selectable, 16 channels, 72.1 – 75.9 MHz* (channels 1-8 corre-

spond with R35-8 receiver channels)

Stability: ± .005%, frequency synthesized, crystal reference, PLL
Modulation: Wide-band FM, 75 kHz pk, 75 μS pre-emphasis
RF Output: 80 mV/m at 3 m (max. allowed by FCC rules)
Freq Response: 200 Hz to 13 kHz, ± 3 dB at 1% max. THD
Signal-to-Noise Ratio:

65 dB (typical) transmitted

Transmit Antenna: Integral with microphone cord
Microphone: Electret type, 3.5 mm mono phone plug
External Controls:

Momentary push button: push and hold 3 seconds for power On/Off,

push and release for microphone mute On/Off; Rotary sixteen channel

switch (with internal channel lock switch)

Mic Input: 3.5 mm mono phone jack with electret mic bias, internal adjustable

gain with 25 dB range

Aux Input: 2.5 mm stereo phone jack, internal adjustable gain with 60 dB range
Audio Compression: 1:1 or 2:1 ratio selected with internal slide switch
Compatible Receivers:

PFM R31, PFM R32, PFM R33, PFM R36, PPA R35, PPA R35-8, PPA R1600

Approvals/Directives: FCC, Industry Canada, RoHS, WEEE
Warranty: 5 years, parts and labor (90 days on accessories)
Note: FCC regulations, section 15.21, requires the user to comply with the

rules of transmitter operation. Any changes or modifications made

by the user not expressly approved for compliance may result in the

loss of all privileges and authority to operate the equipment

*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO
AUDITORYASSISTANCE

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

SYSTEM SPECIFICATIONS

FM TRANSMITTER, MODEL T36

®

®

MAN 142A ©2008 Williams Sound Corp.

10321 West 70th St., Eden Prairie, MN 55344 U.S.A.

800.843.3544 | 952.943.2252 | FAX: [phone]
www.williamssound.com