Williams Sound PPA T36 User Manual

Ma n u a l a n d us e r Gu i d e

®

Pe r s o n a l Pa™ To u r Gu i d e sy s T e M

Wireless, Portable FM Listening System

Transmitter Model PPA T36
Optional Receiver Models PPA R35, PPA R35-8

MAN 145A

®

PERSONAL PA™ FM TO u R Gu i d E Sy S T E M ,
MO d E L S TGS PRO 720, TGS PRO MuLTi

MA N u A L & uS E R Gu i d E

CO N T E N T S PA G E

System Components 3

System Overview 3

Safety Information 4

Recycling Instructions 4

Operating Instructions

PPA T36 Transmitter 5-6

PPA R35 Receiver 7-8

PPA R35-8 Receiver 9

Belt Clip Removal/Installation 10

Battery Information 11

Optional Battery Chargers 12

Hints for Using the System 13

In Case Of Difculty 14

Warranty 15

System Specications 16-17

2

®

Tour Guide Uses the Body Pack
Transmitter With Microphone

FM Radio Signal

Listeners use Personal Receivers with
Headphones, Earphones, Or Neckloop

Sy S T E M CO M P O N E N T S

Body Pack Transmitter (PPA T36) with (2) AA batteries (BAT 001)

Noise-cancelling headband microphone (MIC 096)

(10) Receivers (PPA R35 or R35-8) w/batteries (BAT 001)

Instruction manual (MAN 145)

System carry case (CCS 030 S)

Sy S T E M Ov E R v i E w

The Personal PA™ Tour Guide System is a portable, high-performance, wireless listening
system. It is composed of a PPA T36 Transmitter, microphone, and optional PPA R35 or
R35-8 Receivers equipped with headphones or earphones. The system allows one-way trans­mission of a tour guide’s voice to group members using an FM radio signal. Using the system
helps group members overcome background noise and distance from the person speaking.

The Personal PA™ System can be used for large or small tour groups and in noisy or quiet
environments.

Your Personal PA™ Tour Guide System has two principal parts: the transmitter and the
receiver. Much like a miniature radio station, the transmitter and microphone pick up the
sounds you want to hear and broadcast them over an FM radio signal. The receivers and head­phones are used to pick up the broadcast up to 100 meters away.

To avoid difculties, please read through these instructions as you begin to use the system.

Then save them for questions that arise as you continue to use your system.

If you have problems with the Personal PA™ Tour Guide System, don’t hesitate to call Wil­liams Sound at 1-800-843-3544 or [phone].

FiG 1: H

O w T H E TO u R Gu i d E Sy S T E M wO R k S

3

®

SA F E T y iN F O R M A T i O N

HE A R i N G SA F E T y :

CAUTION!

The tour guide system is designed to amplify sounds to a high volume level which could
potentially cause hearing damage if used improperly.

To protect your hearing and the hearing of others:

1. Make sure the volume on the receiver is turned down before putting on the earphone or
headphone. Then adjust the volume to a comfortable level.

2. Set the volume level on the receiver at the minimum setting that you need to hear.

3. If you experience feedback with the receiver (a squealing or howling sound), reduce the
volume setting and move away from the T36 transmitter’s microphone.

4. Do not allow children or other unauthorized persons access to the receiver.

A T T E R y SA F E T y A N d di S P O S A L :

B

CAUTION!

The transmitter and receiver may be supplied with alkaline batteries. Do not attempt to re­charge alkaline batteries, which may explode, release dangerous chemicals, cause burns, or
other serious harm to the user or product.

PA C E M A k E R SA F E T y :

CAUTION!

1. Before using this system 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.

Re c y c l i n g in s t R u c t i o n s

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

Product Recycling Instructions:

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 Instructions:

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

4

®

uS i N G T H E T36 TR A N S M i T T E R

Mic Jack

Channel
Selector

Power On Indicator

Auxiliary
Input

Power On/Off/Mute

1. Make sure there are two alkaline or rechargeable AA batteries in the transmitter. If batter­ies are not installed, see Battery Information on page 11.

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

FiG 2: T36 TO P vi E w

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”

FiG 3: CH A N N E L i z A T i O N CH A R T

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 3.

Make sure the receiver being used is operating

on the same frequency as the T36 transmitter!

NOTE: Up to eight T36’s can operate simultane-

ously on channels 1-8 (FIG. 3) 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.

T36
CH

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

Letter

A
B
O
P
I
R
G
H
C
K
N
D
E
J
S
T

Freq.

(MHz)

72.1

72.3

72.6

72.8

74.7

75.4

75.7

75.9

72.5

72.2

72.4

72.7

72.9

75.3

75.6

75.8

R35-8

CH

The transmitter can be placed in a pocket, or

clipped onto a belt or waistband.

7. When you pause from speaking, you may mute the microphone by pressing the

“ON/OFF/MUTE” button once momentarily. The “ON/OFF/MUTE” button will ash

red. To unmute the mic, press the “ON/OFF/MUTE” button once momentarily again.

1
2
3
4
5
6
7
8

-

-

-

-

-

-

-

-

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.

5

®

uS i N G T H E T36 TR A N S M i T T E R , C O N T .

AA

AA

–

+

+

–

Comp

CH Lock

- Gain +-

AUX

+

2:1

1:1

GA i N CO N T R O L

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. 4). Use the sup­plied plastic screwdriver and rotate to increase “+” or decrease “-” the gain.

FiG 4: T36
CO N T R O L S

1. Gain Control

2. Auxiliary Input Level

3. Compression Selector

j k l m

Au xi L i AR y iN P u T LE v E L

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

4. Channel Lock

To adjust, open the battery door and locate the Auxiliary Input Level (FIG. 4). Use the plastic screw­driver 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.

Note: When using an auxiliary input source, the mic must be plugged in to the “Mic Jack” in
order to transmit audio!

CO M P R E S S i O N SE L E C T O R

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. 4).

To turn on compression (2:1), slide the “Comp” switch to the position marked “2:1.” To turn
off, slide the “Comp” switch to the position marked “1:1.”

H A N N E L LO C k

C

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. 4). To
lock the current channel, slide the “CH Lock” switch to the position marked “ “. To unlock
the channels, slide the “CH Lock” switch to the position marked “ “.

6

®

wi d E B A N d FM RE C E i v E R S

On/Off
Volume Switch

Headphone/Earphone
Jack

"On" Indicator
LED

R35 Top

On/Off
Volume Switch

Headphone/Earphone
Jack

"On" Indicator
LED

RE C E i v E R MO d E L PPA R35

The PPA R35 is a single-channel receiver operating on the 72-76 MHz bandwidth. It features
volume on/off control, power and low battery indicator, and an earphone jack (see FIG 5).

Instructions:

FiG 5: R35 v

i E w S

R35 Top

R35 Front

BA T T E R y iN S T A L L A T i O N

Make sure there are two alkaline or rechargeable AA batteries in the receiver. If batteries are
not installed, see Battery Information on page 11.

NOTE: The ON indicator will illuminate RED to indicate low battery.

O N N E C T i N G EA R P H O N E S A N d HE A d P H O N E S

C

Plug the earphone into the “Headphone/Earphone” jack on the top of the unit. Only mono­phonic earphones and headphones will operate properly. If stereo headphones are used, sound
will be heard only in one side. Williams Sound evaluates each earphone and headphone used
with the PPA R35 receiver; we can only assure optimum performance when Williams Sound
earphones and headphones are used.

O

P E R A T i N G T H E RE C E i v E R

NOTE: Check to make sure the T36 transmitter is on and transmitting audio. Also, make sure
the T36 is transmitting on the same frequency as the receiver. If the R35 receiver needs to be
re-tuned (most Williams Sound receivers are set at the factory at 75.7 MHz), see page 8 for
frequency change instructions.

Turn the receiver on by rotating the volume control knob clockwise. The receiver’s ON indi­cator should illuminate green. Adjust the volume control for your comfort. To turn the receiv­er off, rotate the volume control knob counter-clockwise until it clicks off. The receiver’s ON
indicator should not be lit.

To maximize battery life, remember to turn the receiver off when it’s not in use.

7

®

PPA R35 RE C E i v E R FR E q u E N C y CH A N G E iN S T R u C T i O N S

Selecting a frequency for the R35 receiver requires an adjustment to the internal tuning coil
(FIG 6.). Use a plastic tuning wrench (PLT 005) to adjust the tuning coil.

FiG 6: R35 Tu N i N G

Most R35 single channel Receivers are set at the factory to 75.7 MHz (when delivered with
tour guide system).

The Receiver must be tuned with a weak and somewhat noisy signal. If tuned too close to the
transmitter, with a strong signal, the most accurate tuning of the receiver is not possible.

O CH A N G E T H E FR E q u E N C y T O AN O T H E R CH A N N E L :

T

Step 1: Set the transmitter to the channel desired.

Step 2: Connect an audio source to the transmitter such as a CD, MP3, player or use the mic.

Step 3: Move the receiver about 25 feet away from the transmitter to set the tuning.

Step 4: Open the battery compartment.

Step 5: Locate the Tuning Coil (see FIG. 6). Each tuning coil is a small, square, shiny metal can

with a screwdriver slot in a tuning slug in the top center. The Tuning Slug is usually black
or gray.

Step 6: With an earphone or headphone plugged into the “Headphone/Earphone” jack, turn the

volume control to a comfortable level, and listen for the transmitted signal.

Step 7: Gently put the tip of the tuning wrench into the slot in the tuning slug. Be careful not to

push hard on the slug so as not to damage the threads in the coil, and do not screw it down
more than 3 turns into the coil.

Step 8: Turn the tuning slug in a counterclockwise direction about two turns. Then, slowly turn

the tuning slug in the clockwise direction until the signal is heard. There may be two

signal points heard. The one which is received rst is a false response. Be sure to continue

tuning slightly further to the correct point, which will be much louder. Tune back and

forth to nd the center of the point of best response to the program being heard.

8

®

RE C E i v E R MO d E L PPA R35-8

On/Off Switch
Volume Control

Headphone/Earphone
Jack

"On"/Low Battery
Indicator LED

Channel
Selector Knob

The PPA R35-8 is an eight channel receiver, operating on 72-76 MHz bandwidth. It features a
channel selection knob, volume on/off control, LED power and low battery indicator, and an
earphone jack (See FIG. 7). Instructions:

FiG 7: R35-8 v

i E w S

R35-8 Top

R35-8 Front

A T T E R y iN S T A L L A T i O N

B

Make sure there are two alkaline or rechargeable AA batteries in the receiver. If batteries are

not installed, see Battery Information on page 11.

O N N E C T i N G EA R P H O N E S A N d HE A d P H O N E S

C

Plug the earphone into the “Headphone/Earphone” jack on the top of the unit. Only mono­phonic earphones and headphones will operate properly. If stereo headphones are used, sound
will be heard only in one side. Williams Sound evaluates each earphone and headphone
used with the PPA R35-8 receiver; we can only assure optimum performance when Williams
Sound earphones and headphones are used.

O

P E R A T i N G T H E RE C E i v E R

Plug the earphone or headphone into the Headphone
jack on the receiver’s control panel. Turn the receiver
on by rotating the Volume control knob. The ON
indicator should illuminate RED. Refer to the chan­nel selection chart in FIG. 8 to choose from 8 standard
frequencies. Turn the channel selector knob to the de­sired channel. IMPORTANT: Make sure the receiver
frequency matches the transmitter frequency! Adjust
the volume to a comfortable listening level. To turn the
receiver off, rotate the Volume control knob to the left
until it clicks off. The ON indicator should not be lit.

To prolong the battery life of the unit, turn the
receiver off when it is not in use.

FiG. 8

T36
CH

1

2

3

4

5

6

7

8

9
10
11
12
13
14
15
16

Letter

A
B
O
P
I
R
G
H
C
K
N
D
E
J
S
T

Freq.

(MHz)

72.1

72.3

72.6

72.8

74.7

75.4

75.7

75.9

72.5

72.2

72.4

72.7

72.9

75.3

75.6

75.8

R35-8

CH

1
2
3
4
5
6
7
8

-

-

-

-

-

-

-

-

9

®

BE L T CL i P RE M O v A L /iN S T A L L A T i O N

TO iN S T A L L :

Position the belt clip on the rear of the transmitter or receiver unit as shown in FIG. 9A. Turn
the belt clip 180º left or right as shown in FIG. 9B. The belt clip is now installed and ready
for use.

O RE M O v E :

T

Turn the belt clip 180º so the edge points toward the top of the unit as shown in FIG. 9B.
Gently pull the belt clip away from the unit to remove.

FiG. 9A FiG. 9B

10

®

BA T T E R y iN F O R M A T i O N

AA

AA

–

+

+

–

Comp

CH Lock

- Gain +-

AUX

+

2:1

1:1

iN S T A L L A T i O N /RE M O v A L

Open the battery compartment by lifting the tab on the back of the transmitter or receiver with your

nger. To remove depleted batteries, pull up on the fabric strip.

IMPORTANT: If alkaline (non-rechargeable) batteries are being installed, slide the battery
selection switch in the battery compartment to the “alkaline” position. See FIG. 10 below. If
installing NiMH (or rechargeable) batteries, slide the battery selection switch to the “NiMH”
position.

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.

FiG. 10

Power LED indicator will ash or turn red when the batteries are getting low (see Low Bat­tery Indicator on chart below). Continue to use equipment until sound becomes weak or dis-

torted, or until the equipment quits operating, then replace or recharge batteries. Do not leave
dead batteries in the transmitter or receivers. The power indicator light may remain on, even
with a battery that is weak. The chart below shows typical battery life with these units:

Model Battery Type Battery Life

T36 Alkaline AA batteries (BAT 001) 30 hours

Low Battery Indicator

Power LED ashes

Rechargeable AA NiMH (BAT 026) 20 hours

R35 Alkaline AA batteries (BAT 001) 100 hours

Power LED turns RED

Rechargeable AA NiMH (BAT 026) 56 hours

R35-8 Alkaline AA batteries (BAT 001) 50 hours

Power LED ashes

Rechargeable AA NiMH (BAT 026) 32 hours

IMPORTANT WARNINGS:

DO NOT ATTEMPT TO RECHARGE ZINC CARBON (“HEAVY DUTY”),
ALKALINE, OR LITHIUM BATTERIES! DO NOT ATTEMPT TO RECHARGE
DISPOSABLE BATTERIES!

These batteries may heat up and explode, causing possible injury and damage to the
equipment.

Avoid shorting the plus and minus battery terminals together with metal objects.

Battery damage and burns can result! Do not dispose of batteries in re. Do not

open batteries - toxic chemicals inside.

11

®

OP T i O N A L BA T T E R y CH A R G E R S

Receiver or Transmitter

Charging

LED Indicator

AC P ower Connection

CHG 3502
Rear View

Fi G: 11A: CHG 3512 / 3512 PRO Mu L T i -CH A R G E R

Fi G: 11B: CHG 3502 du A L -BA y CH A R G E R

For more information on available chargers, visit

www.williamssound.com or call [phone].

12

®

Ti P S F O R uS i N G T H E Sy S T E M

The maximum operating distance between the transmitter and receiver is about 46 meters (150
feet). The operating range will vary in different buildings and surroundings. In some locations,

the signal may momentarily disappear. This is called a “drop-out” and is due to reection and

cancellation of the radio signal. Moving a few feet should restore the signal.

Keep the transmitter and receiver units at least 1 meter (3 feet) apart. If the transmitter gets
too close to a receiver, it may overload the receiver, causing noisy reception or blocking of the
signal.

Do not use more than one transmitter on the same channel (frequency) at the same time unless
they are physically separated by more than 60 meters (200 feet). Operating more than one
transmitter on the same channel at the same time in the same place will result in interference.

uS i N G Mu L T i P L E Sy S T E M S F O R Mu L T i P L E GR O u P S :

For multiple tour groups within the same facility, multiple Tour Guide Systems may be oper­ated on the same channel at the same time by maintaining physical separation of more than 60
meters (200 feet) between groups. The physical separation of groups takes advantage of the
FM capture effect which causes receivers to lock onto the closest transmitter.

FiG. 12: TO u R Gu i d E GR O u P SE P A R A T i O N

13

®

iN CA S E OF di F F i C u L T y

If your Tour Guide System is not working, check the following:

1. Read through the manual and user guide carefully to verify proper setup and installation
of your system.

2. Make sure the batteries are fresh or completely charged and that the “plus” and “minus”
terminals are installed correctly.

3. If the rechargeable batteries work for a short period of time (less than 1 hour) even after
they are fully charged, they must be regenerated. Leave them in the receiver or transmit­ter with the unit turned on for 5 - 6 hours. Then turn receiver or transmitter off, place it
in the charger, and fully charge the receiver and transmitter (refer to charger instruction
manual). This should restore normal battery life. Rechargeable batteries will gradually
lose their capacity over time and may need to be replaced every 1-2 years.

4. Make sure the microphone is plugged into the T36 Transmitter and the earphone or head­phone is plugged into the PPA R35 or R35-8 Receiver.

5. Move the transmitter and receiver closer together. You may be out of range. When using
the system indoors, it’s normal for the signal to momentarily disappear in certain loca­tions. This is called a “drop-out.” Moving a few feet will restore the signal.

6. Do not try to use more than one transmitter on the same channel in close proximity to
each other. MORE THAN ONE TRANSMITTER ON THE SAME CHANNEL WILL
RESULT IN INTERFERENCE IF THEY ARE CLOSE TOGETHER. Keep the transmit­ters at least 60 meters (200 feet) apart or use separate channels for each system used.

7. If you are still hearing interference on the receivers, turn the transmitter off and listen
with a receiver. If you hear the interference with the transmitter off, you need to change
to a clear channel (see pages 8-9). Call your Williams Sound representative at 1-800-843­3544 or [phone] for details.

NO T i C E

Williams Sound Corp. assumes no liability for improper use or operation of this equipment.
The user is cautioned to operate the volume controls at the lowest acceptable level, and in a
manner that will not cause damage to hearing. Ear pieces and accessories should be worn us­ing good judgement and for their intended purpose.

Users are cautioned that changes or modications not expressly approved by Williams Sound

Corp. could void the user’s authority to operate the equipment.

14

®

Li MiT Ed wA R R A N T y

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 Personal PA™ Tour Guide System against defects in materials and workmanship for

FIVE (5) years. During the rst ve years from the purchase date, we will promptly repair or

replace the Personal PA™ Tour Guide System.

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

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 PERSONAL PA™ TOUR GUIDE SYSTEM, INCLUDING BUT NOT LIMITED
TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR 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
MALFUNCTIONING 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 PRODUCTS
REPLACEMENT OF THE PRODUCT. NO PERSON HAS ANY AUTHORITY TO BIND
WILLIAMS SOUND TO ANY REPRESENTATION OR WARRANTY WITH RESPECT
TO THE PERSONAL PA™ TOUR GUIDE SYSTEM. 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 Dis-

claimer of Warranty is held to be illegal, unenforceable, or in conict 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 difculty 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 USA

Your warranty becomes effective the date you purchase your system. Your returned warranty

card is our way of knowing when your warranty begins. Please take a moment to ll out and

mail the enclosed card. You may also register your product online: www.williamssound.com/
registration.aspx. This information will help us serve you better in the future. Thank you!

15

®

Sy S T E M SP E CiF iCAT i ONS

TR A N S M i T T E R , MO d E L PPA T36

Dimensions: 4.1” L x 2.8” W x 1.1” H (104 mm x 71 mm x 28 mm)
Weight: 2.9 oz (82 g), no batteries
Color: Black, shatter-resistant PC/ABS plastic
Battery Type: Two (2) AA 1.5 V non-rechargeable Alkaline batteries (BAT 001), 70 mA nominal current

Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026), 70 mA nominal current drain, 20

Operating Freq’s: Selectable, 16 channels, 72.1 – 75.9 MHz* (channels 1-8 correspond with R35-8 receiver chan-

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

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 opera-

drain, 30 hours approx. life or

hours per charge approx., recharges in 14–16 hours, uses CHG 3502 or CHG 3512 Charger

nels)

microphone mute On/Off; Rotary sixteen channel switch (with internal channel lock switch)

tion. Any changes or modications made by the user not expressly approved for compliance

may result in the loss of all privileges and authority to operate the equipment

RE C E i v E R , MO d E L PPA R35

Dimensions: 4.1” L x 2.8” W x 1.1” H (104 mm x 71 mm x 28 mm)
Weight: 4.5 oz (127 g) w/ batteries
Color: Black
Battery Type: Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 100 hours battery life or
Two (2) AA rechargeable NiMH batteries (BAT 026), 1400 mAh, approx 56 hours battery life
Current Consumption: Nominal 40 mA
Operating Freq.: Pre-tuned, adjustable, 72 MHz-76 MHz *
Intermediate Freq.: 75 kHz
FM Deviation: 75 kHz
De-Emphasis: 75 µS
LED Indicator Power: Green; Low Battery: Red
AFC Range: ± 120 kHz
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Input Overload: 20 mV
Frequency Response: 100 Hz to 15 kHz, ± 3 dB
Signal-to-Noise Ratio: 65 dB at 10 µV
Receive Antenna: Integral with earphone/headphone cord

Audio Output: 35 mW, max. at 16 Ω

Output Connector: 3.5 mm mono phone jack

Earphone: Earbud-type with foam cushion, 3.5 mm plug, 32 Ω
Notes: The R35 Receiver can be eld tuned to any of 16 wideband

channels using the PLT 005 Tuning Tool.
Approvals: FCC, Industry Canada, RoHS, WEEE
Warranty: Five years, parts and labor. 90 days on cords, earphones,
headphones, batteries and other accessories

*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE.

Note: Specications subject to change without notice.

16

®

RE C E i v E R , MO d E L PPA R35-8

Dimensions: 4.5” H x 2.8 W x 1.1” D (115 mm x 71 mm x 28 mm)
Weight: 4.6 oz (130 g) w/ batteries
Color: Black
Battery Type: Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs. battery life; or

Current Consumption: Nominal 40 mA
Operating Freq: 8 channels: 72.1, 72.3, 72.6, 72.8, 74.7, 75.4, 75.7, or 75.9 MHz*.
Intermediate Freq: 10.7 MHz
FM Deviation: +/- 75 kHz
De-emphasis: 75 uS
LED Indicator: Power: Red. Low Battery: Flashes
Sensitivity: 2 µV at 12 dB SINAD with squelch defeated
Input Overload: 20 mV
Frequency Response: 40 Hz to 15 kHz +/- 3 dB
Signal to Noise ratio: 60 dB at 100 µV
Receive Antenna: Integral with earphone/headphone cord
Audio Output: 35 mW, max 16 ohm load
Output Connector: 3.5 mm mono phone jack
Squelch: Located inside battery door. Factory set for 25 dB S/N. Squelch

may be set with JFD-7104-5 from Sprague Goodman or any at tipped

tuning tool with tip size .095 X .016

Notes: The R35-8 is NOT eld tunable. The eight channels have been

carefully selected to inhibit inter-modulation interference. Channel frequencies are 72.1,

Approvals: FCC, Industry Canada, RoHS, WEEE
Warranty: Five Years, Parts and Labor. 90 days on cords, earphones, headphones, batteries, and

*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE.

Two (2) AA rechargeable NiMH batteries (BAT 026), 1600 mAh, approx. 32 hrs. battery life

72.3, 72.6, 72.8, 74.7, 75.4, 75.7, and 75.9 MHz.

other accessories

Note: Specications subject to change without notice.

17

®18®

19

®

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

800.843.3544 | 952.943.2252 | FA X: 952.943.2174
www.williamssound.com

©2008 Williams Sound Corp. MAN 145A