Williams Sound PPA T46 User manual

MAN 158F
Personal PA®Tour Guide System
Wireless, Portable FM Listening System
User MANUAL
Transmitter Model PPA T46
Optional Receiver Models PPA R37, PPA R35-8, PPA R38
TGS PRO 738
TGS PRO 737
TGS PRO MULTI

2
PERSONAL PA®FM Tour Guide Systems
PERSONAL PA®FM Tour Guide System
TGS PRO 737, TGS PRO MULTI, TGS PRO 738
User Manual
Contents
System Overview ............................................................................................................................................................... 4
System Components......................................................................................................................................................... 4
Safety Information ............................................................................................................................................................. 5
Recycling Instructions ...................................................................................................................................................... 5
72-76 MHz Wideband FM Transmitter........................................................................................................................... 6
PPA T46 Overview ........................................................................................................................................................... 6
PPA T46 Included Parts ................................................................................................................................................... 6
PPA T46 Important Note about OLED care ...................................................................................................................... 6
PPA T46 Features ............................................................................................................................................................ 6
PPA T46 Quick Setup ...................................................................................................................................................7-8
PPA T46 Basic Setup....................................................................................................................................................8-9
PPA T46 Advanced Setup...........................................................................................................................................9-10
PPA T46 Dual-Preset Mode............................................................................................................................................ 10
Wideband FM Receivers ................................................................................................................................................ 11
Receiver Model PPA R37 ............................................................................................................................................... 11
Operating the PPA R37 Receiver.................................................................................................................................... 11
LED Flash Codes ........................................................................................................................................................... 11
Receiver Model PPA R35-8 ............................................................................................................................................ 12
Battery Installation.......................................................................................................................................................... 12
Connecting Earphones and Headphones ....................................................................................................................... 12
Operating the R35-8 Receiver ........................................................................................................................................ 12
Receiver Model PPA R38 ............................................................................................................................................... 13
Battery Installation.......................................................................................................................................................... 13
Connecting Earphones and Headphones ....................................................................................................................... 13
Operating the R38 Receiver ........................................................................................................................................... 13
Belt Clip Removal/Installation ......................................................................................................................................... 14
Battery Information.......................................................................................................................................................... 15
Optional Battery Chargers ............................................................................................................................................. 16
Using the System............................................................................................................................................................. 17
In Case Of Diculty......................................................................................................................................................... 17
Troubleshooting................................................................................................................................................................ 18

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PERSONAL PA®FM Tour Guide Systems
System Specications .................................................................................................................................................... 19
Personal PA®Transmitter, Model PPA T46 .................................................................................................................... 19
PPA Select™Receiver, Model PPA R37.......................................................................................................................... 20
Personal PA®Recevier, Model PPA R35-8 .................................................................................................................... 21
Personal PA®Recevier, Model PPA R38........................................................................................................................ 22
Lifetime PLUS Limited Warranty................................................................................................................................... 23

4
PERSONAL PA®FM Tour Guide Systems
System Overview
Thank you for purchasing the TGS PRO 737 or TGS PRO MULTI Personal PA®Tour Guide System from Williams Sound.
The Personal PA®Tour Guide System is a portable, high-performance, wireless listening system. It is composed of a PPA T46
Transmitter, microphone, and optional PPA R37 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®Tour Guide 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 150 feet away. See Figure 1.
To avoid di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].
Figure 1: How the Tour Guide System Works
FM RADIO SIGNAL
A314
(CORD IS TRANSMITTING ANTENNA)
TOUR GUIDE USES THE BODY PACK
TRANSMITTER WITH MICROPHONE
LISTENERS USE PERSONAL RECEIVERS WITH
HEADPHONES, EARPHONES, OR NECKLOOP
System Components
• Body Pack Transmitter (PPA T46) with (2) AA batteries (BAT 001-2) and WCA 087 Auxillary Input Cable
• Unidirectional headband microphone (MIC 100)
• (10) Receivers (PPA R37 or R35-8) w/batteries (BAT 001-2)
• Instruction manual
• System carry case (CCS 030 S)

5
PERSONAL PA®FM Tour Guide Systems
Safety Information
HEARING SAFETY:
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 T46 transmitter’s microphone.
4. Do not allow children or other unauthorized persons access to the receiver.
BATTERY SAFETY AND DISPOSAL:
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.
PACEMAKER SAFETY:
CAUTION!
Recycling Instructions
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.
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.

6
PERSONAL PA®FM Tour Guide Systems
72-76 MHz Wideband Transmitter
PPA T46 Overview
Much like a miniature radio station, the PPA T46 transmitter
broadcasts over an FM radio signal. Receivers are used to pick
up the broadcast up to 150 feet away. The system helps large
or small groups overcome background noise and distance to
clearly hear the speaker.
The PPA T46 FM transmitter broadcasts voice and/or audio
programs on one of 17 available channels, 72-76 MHz.
Listeners use PPA R35-8 / PPA R37 receivers equipped with
headphones, earphones, or neckloops to hear the broadcast.
(An R1600 speaker can also be used.)
The PPA T46 features a convenient, dual preset mode that
allows users to set separate channel/volume/auxiliary gain
levels for each preset and then toggle back and forth between
them.
The OLED user interface on the PPA T46 is an easy-to-read
digital display and active read-out. The unit also features
exible microphone and auxiliary inputs, push-button on/o/
mute controls, settings lock and selectable compression.
To avoid diculties, please read through these instructions, and
keep them for reference.
PPA T46 Included Parts
(1) PPA T46 transmitter
(1) BAT 001-2 AA batteries
(1) WCA 087 auxiliary input cable
Microphone sold separately.
All items can be purchased separately.
Note: The PPA T46 now replaces the PPA T36 transmitter in
the Williams Sound Personal PA TGS PRO 737 and TGS PRO
MULTI FM tour guide systems, and the FM ADA KIT 37 and FM
ADA KIT 37 RCH compliance kits.
Important Note about OLED Care
The PPA T46 must be powered o before removing the
batteries. Failure to do so may decrease the life of the OLED
display.
PPA T46 Features
Sleek, ergonomic design
Range of up to 150’ (with PPA R37 receiver)
1.25” OLED interface displays:
· master volume level · channel/frequency
· mic mute · settings lock
· battery level · settings menus
Accepts electret mic with 3.5mm mono plug or audio
source (MP3, CD player)
Belt clip for hands-free operation
Made in the USA
17-channel selectable, wideband, 72-76 MHz
Digitally synthesized frequencies
Easy-to-use menu-access controls:
· microphone and auxiliary levels
· 8 or 17-channel mode selection
· current frequency/channel number
· compression (1:1 or 2:1)
· display settings
Lifetime PLUS Limited Warranty (90 days on
accessories)
Meets ADA Accessibility guidelines

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PERSONAL PA®FM Tour Guide Systems
A311
ALKALINE/NiMH
BATTERY SWITCH
CAUTION: RECHARGE
ONLY NiMH BATTERIES
BATTERY REMOVAL
FABRIC STRIP
T46 TOP
POWER ON/OFF,
MUTE BUTTON
AUXILIARY
INPUT JACK
MIC
JACK
POWER "ON",
LOW BATTERY
LED
A310
Figure B: Top of Transmitter
Figure A: Battery Compartment
Figure C: Channel Selection Chart
T46 FRONT
LEFT
ARROW
BUTTON RIGHT
ARROW
BUTTON
MENU
BUTTON
OLED
DISPLAY
A309
Figure D: Menu Buttons
T46 Ch Letter Freq (MHz) R35-8 Ch
1 A 72.1 1
2 B 72.3 2
3 O 72.6 3
4 P 72.8 4
5 I 74.7 5
6 R 75.4 6
7 G 75.7 7
8 H 75.9 8
9 C 72.5
10 K 72.2
11 N 72.4
12 D 72.7
13 E 72.9
14 J 75.3
15 S 75.6
16 T 75.8
17 F 75.5
A376
PPA T46 Quick Setup
1. Open the battery compartment. Slide the battery selection
switch to the correct position for the type of batteries that
will be used. Use “Alkaline” for non-rechargeable batteries,
“NiMH” for rechargeable NiMH batteries (only). (FIG. A)
IMPORTANT: If the battery switch is not in the correct
position, damage may be caused to the unit.
2. Install the AA batteries. Be sure to observe proper polarity
(+/-). Damage due to improper battery installation may
void the warranty on the product. The battery icon on the
display and the “Power On” LED on top of the unit will ash
when the batteries are getting low; you may continue to
use until the unit quits operating, then replace or recharge
the batteries. (Figure. A)
3. Plug in the microphone cord (sold separately) using the
“Mic Jack” on top of the transmitter (Figure B).
4. 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 an auxiliary source is desired, the mic can be muted.
Do not remove the mic from the “Mic Jack” as the
microphone cable is also the transmitting antenna.
(Figure B)
5. Turn the unit on: press and hold the “ON/OFF/MUTE”
button for three seconds. The “Power On” indicator will
illuminate green. (Figure B)
6. Select the desired operating frequency. Refer to the
following channel selection chart. Make sure the transmitter
and receiver channels match. Up to eight T46’s can
operate simultaneously on dierent channels. If this is
desired, set each T46 to 8-channel mode (see Advanced
Settings, Step 4). The frequencies in 8-channel mode
correspond to the R35-8 channel set shown in the chart.
This preset eight channel/frequency selection is the only
conguration that will allow simultaneous eight channel
use. (FIG. C) (FIG. C)
7. Change the transmitter to the desired channel. To access
the channel setting, push the menu button until you see
the channel displayed. Change the channel by pushing
the left or right arrow buttons. Push the menu button to
save the channel. (Figure D, Figure E) Note: To choose by
frequency, see Advanced Settings.

8
PERSONAL PA®FM Tour Guide Systems
8. To access additional settings, push the menu button
repeatedly until you see the setting you want. If no buttons
are pushed, the screen will time-out and shut o.
9. To install the belt clip on the rear of the T46, position the belt
clip on the back of transmitter. Turn the belt clip 180˚ left or
right to secure the clip. The transmitter can now be clipped
onto a belt. To remove, turn the belt clip 180˚ so the open
end of the clip points up, and gently pull the belt clip o.
(FIG. F)
10.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.
11.When you pause from speaking, you may mute the
microphone by pressing the “ON/OFF/MUTE” button once
momentarily. The button will ash. The front display will also
indicate the mic is muted. To unmute the mic, press the
button once momentarily again. Note: The AUX Audio Input
is unaected by the mic mute.
12. When the T46 transmitter is not being used, turn the unit
OFF by pressing and holding the “ON/OFF/MUTE” button
for three seconds. The Power On indicator will go o.
A312
MIC + AUX
AUDIO LEVEL
MIC MUTED SETTINGS
LOCKED
TRANSMIT
CHANNEL
BATTERY
LIFE
Figure E: Menu Display
Figure F: Belt Clip Installation
A119
A119
PPA T46 Basic Setup
The Basic Setup Menu allows the user to change the most
frequently used settings easily. The User can change the
transmitting channel (or frequency), the master volume level,
and the auxiliary volume level.
1. Turn on the transmitter by pushing and holding the power
button for 3 seconds. The transmitter will start up and show
the following three screens.
Note: While on the main screen, if the left or right arrow
button is pushed, the following screen will show, indicating
that you need to enter the menu in order to change any
settings.
2. To mute the microphone, push and release the power
button on the top of the transmitter. To un-mute, push and
release the power button again.

9
PERSONAL PA®FM Tour Guide Systems
3. To set the transmit channel, push
the menu button until you see the
channel set screen, below. Use the
arrow buttons to select one of the
17 channels (see Channel Selection
Chart in Quick Setup, Fig. C).
4. To set the Master Volume Level (this
is the microphone + auxiliary input
volume), push the menu button until
you see the master volume screen,
below. Use the arrow buttons to
adjust the volume level (1-30).
5. To set the Auxiliary Volume
Level (this is the auxillary input
volume before it is mixed with the
microphone), push the menu button
until you see the auxiliary volume
screen, below. Use the arrow
buttons to adjust the volume level
(1-30).
PPA T46 Advanced Setup
The Advanced Setup Menu allows the
user to turn compression on/o, change
between channel and frequency display
mode, change the transmitter to 8 or
17-channel mode, change the amount
of time for display time-out, set screen
brightness, and restore factory default
settings.
1. To access the Advanced Setup Menu,
push the Menu button repeatedly to
toggle through all of the basic settings,
until you see the following screen.
Push the right arrow to enter the
advanced setup menu.
2. Audio Compression reduces the
volume dierence between loud
and quiet sounds. To set the audio
compression ratio, push the menu
button until you see the compression
screen, below. Use the left, right arrow
buttons to toggle the compression
(1:1 = compression o, and 2:1 =
compression on).
3. To change the display to show either
frequency (72.1-75.9MHz) or channel
number (1-17), push the menu
button until you see the frequency
display mode screen, below. Use
the arrow buttons to toggle between
“FREQUENCY” or “CH NUMBER” .
4. 8-channel mode restricts the
transmitter to just the 8 non-
interfering (simulataneous broadcast)
channels. To change the transmitter
between 8-channel and 17-channel
modes, push the menu button
until you see the channel selection
mode screen, below. Use the arrow
buttons to toggle between “17
CHANNEL MODE” or “8 CHANNEL
MODE”.
5. To change the display time-out
period (5, 30, or 60 seconds), push
the menu button until you see the
time-out screen, below. Use the
arrow buttons to toggle between “5
SECONDS” “30 SECONDS” or “60
SECONDS”.

10
PERSONAL PA®FM Tour Guide Systems
6. To change the screen brightness
(level 1-4), push the menu button
until you see the brightness screen,
below. Use the left, right arrow
buttons to toggle between “1” “2”
“3” or “4”.
7. To erase all user settings and return
to factory defaults, push the menu
button until you see the factory reset
screen, “ERASE ALL SETTINGS
RESTORE DEFAULTS?”, below.
Push the right arrow button to
choose “YES”. After this you will see
the conrmation screen “FACTORY
DEFAULTS RESTORED”. The
transmitter will then return back to
the main screen.
8. To lock (or unlock) the settings, you
must rst be on the Main Screen.
Then, push and hold the left- and
right-arrow buttons together. While
holding the buttons, you will see the
following dashed-line display. Keep
holding the buttons until all three
lines disappear.
The display will then show “PRESS
MENU TO LOCK”. Push the Menu
button.
The display will then indicate “LOCKED”.
To unlock the settings, follow these same
steps in order.
PPA T46 Dual-Preset Mode
Dual-Preset Mode allows the user to
instantly access one of two independent
transmitting modes. Each preset can
have it’s own frequency, master volume,
and auxiliary volume settings. After
setup, the user can easily toggle between
the two presets.
Note: only one frequency/channel can be
transmitted at a time.
1. Turn the transmitter o by holding
the power button for 3 seconds.
The transmitter must be OFF before
performing the next step.
2. To access Dual-Preset Mode,
push-and-hold the Power and Menu
buttons together and keep holding
them until you see the following screen
“LOADING...” below.
3. The T46 will power up in Dual-Preset
Mode looking similar to the following
screen. “P1” and “P2” indicate the two
presets. The currently selected preset
is surrounded by the box showing “ON
AIR”. “ON AIR” means that this preset
is currently transmitting.
4. Use the left or right arrow buttons to
move the “ON AIR” box to the preset
you want to adjust. (Note that you
are now transmitting on this preset.)
5 . Push the Menu button and note
that either “P1” or “P2” shows up
on the top left corner of the screen.
This indicates which Preset you are
adjusting.
6. Follow the steps under “Basic
Setup” (starting at step 3) to set up
each preset and “Advanced Setup”
(starting at step 1) to change settings
that aect both presets.
7. To toggle between the two presets,
exit out of the menu and use the
arrow buttons to change between
presets.
Note: In Dual-Preset Mode, if
settings are locked, the arrow
buttons will allow you to toggle
between presets, and the mic can be
muted. All other settings are locked.

11
PERSONAL PA®FM Tour Guide Systems
Wideband FM Receivers
Receiver Model PPA R37
The PPA R37 is a 17-channel receiver operating on the 72-76 MHz bandwidth. Features seek-button channel selection, channel-
lock capability, battery-saving Sleep Mode, on/o volume control, power/low battery indicator, and stereo/mono earphone jack.
Figure G: R37 Controls
Figure H: R37 Battery type and channel selection
ON/OFF, VOLUME
CONTROL SWITCH
EARPHONE
JACK
"ON" / LOW BATTERY/
FLASH CODE INDICATOR
OFF
A116
LED Flash Codes
Light Code Indicates Description
1 blink Channel locked Seek press remains on current channel
2 blinks Channel unlocked Seek press tunes to next channel present
3 blinks Channel unlocked; no other channels present Seek press attempts to nd another channel
On-O-On-O...(continuous) Batteries are low Batteries need to be replaced or recharged
Fade-on, Fade-o... (continuous) No transmitter present on current channel Sleep/Power Save mode (extends battery life)
ALKALINE/
NiMH SWITCH
CHANNEL
SEEK BUTTON
AA
AA
–
+
+
–
Channel
Seek
A117
Operating the PPA R37 Receiver
1. Insert two (2) AA batteries ensuring correct polarity. If rechargeable NiMH batteries are to be used with the receiver and a
Williams Sound charger, make sure the Alkaline/NiMH switch inside the battery compartment is set to NiMH before charging.
See Figure H.
2. Insert the headphone, earphone or neckloop into the stereo output jack.
3. Turn receiver on by turning up the volume control. The green power LED will turn on.
4. Press the Channel Seek button inside the battery compartment once to seek an active transmitter. See Figure H. If more than
one transmitter is being used, push the seek button additional times until you locate the signal you want to hear. The receiver
will retain the channel setting when the unit is turned o.
5. To lock or unlock a selected channel, turn the power o. While holding the seek button, turn the power back on. When locked,
the receiver will remain on the current channel regardless of channel seek button presses.

12
PERSONAL PA®FM Tour Guide Systems
Receiver Model PPA R35-8
The PPA R35-8 is an eight channel receiver, operating on 72-76 MHz bandwidth. It features a channel selection knob, on/o
volume control, LED power and low battery indicator, and an earphone jack (Figure I).
Figure I: R35-8 Controls
Battery Installation
Make sure there are two alkaline or rechargeable AA batteries in the receiver. If batteries are not installed, see Battery Information
on page 14.
Connecting Earphones and Headphones
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 sold with the PPA R35-8 receiver; we can only assure optimum performance when Williams Sound earphones
and headphones are used.
Operating the PPA R35-8 Receiver
Turn the receiver on by rotating the Volume control knob. The ON indicator should illuminate RED. Set the channel to the same
channel as the transmitter. Turn the channel selector knob to the desired channel. Adjust the volume to a comfortable listening
level. To turn the receiver o, rotate the Volume control knob to the left until it clicks o. The ON indicator should not be lit.
See Page 6, Figure C for R-35-8 frequency allocation.
To prolong the battery life of the unit, turn the receiver o when it is not in use.
ON/OFF, VOLUME
CONTROL SWITCH
HEADPHONE
JACK
"ON"/LOW
BATTERY
INDICATOR
CHANNEL
SELECTOR
KNOB
A118

13
PERSONAL PA®FM Tour Guide Systems
Receiver Model PPA R38
The PPA R38 is a 17-channel receiver, operating on 72-76 MHz bandwidth. It features an OLED screen with convenient front
controls, providing easy access to status, volume, channel selection and settings; a top power button/low battery indicator, and a
stereo/mono headphone jack. (Figure J).
Battery Installation
Make sure there are two alkaline or rechargeable AA batteries in the receiver. If batteries are not installed, see Battery Information
on page 14.
Connecting Earphones and Headphones
Plug the earphone into the “Headphone/Earphone” jack on the top of the unit. Both stereo and monophonic earphones and
headphones will operate properly. Williams Sound evaluates each earphone and headphone sold with the PPA R38 receiver; we
can only assure optimum performance when Williams Sound earphones and headphones are used.
Operating the PPA R38 Receiver
Turn the receiver on by pushing and holding the Power Button for 3 seconds, until the display turns on. The power button
will illuminate green. Set the channel to the same channel as the transmitter - push the menu button once to see the channel
adjustment screen, and push the left or right buttons to select the desired channel. Adjust the volume to a comfortable listening
level. To turn the receiver o, push and hold the power button until the display turns o. The power button should not be lit.
See Page 6, Figure C for R38 frequency allocation.
To prolong the battery life of the unit, turn the receiver o when it is not in use.
A428
3.5mm
STEREO/MONO
HEADPHONE
JACK
R38 TOP
POWER BUTTON/
LOW BATTERY
INDICATOR
R38 FRONT
LEFT
ARROW
BUTTON
RIGHT
ARROW
BUTTON
MENU
BUTTON
OLED
DISPLAY
A409
Figure J: R38 Controls

14
PERSONAL PA®FM Tour Guide Systems
Belt Clip Removal/Installation
To Install:
Position the belt clip on the rear of the transmitter or receiver unit as shown in Figure K1. Turn the belt clip 180º left or right as
shown in Figure K2. The belt clip is now installed and ready for use.
To Remove:
Turn the belt clip 180º so the edge points toward the top of the unit as shown in Figure K2. Gently pull the belt clip away from the
unit to remove.
Figure K1: R35-8 Belt Clip Installation
A119
Figure K2: Turn Belt Clip

15
PERSONAL PA®FM Tour Guide Systems
Battery Information
Installation/Removal
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. (Figure L)
IMPORTANT: If non-rechargeable batteries are being installed, slide the battery selection switch in the battery
compartment to the “alkaline” position. See Figure L below. If installing NiMH (or rechargeable) batteries, slide the
battery selection switch to the “NiMH” position.
Figure L: Battery Compartment
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. 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 distorted, 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:
Typical Battery Life
Model Battery Type Battery Life Low Battery Indicator
PPA T46 Alkaline AA batteries (BAT 001-2) Up to 30 hours Screen battery icon has no bars and blinks,
power button ashes
Rechargeable AA NiMH (BAT 026-2) Up to 20 hours
PPA R37 Alkaline AA batteries (BAT 001-2) Up to 50 hours Power LED ashes
Rechargeable AA NiMH (BAT 026-2) Up to 32 hours
PPA R35-8 Alkaline AA batteries (BAT 001-2) Up to 50 hours Power LED ashes
Rechargeable AA NiMH (BAT 026-2) Up to 32 hours
PPA R38 Alkaline AA batteries (BAT 001-2) Up to 50 hours Screen battery icon has no bars and blinks,
power button ashes
Rechargeable AA NiMH (BAT 026-2) Up to 32 hours
!! IMPORTANT WARNINGS !!
DO NOT ATTEMPT TO RECHARGE ZINC CARBON (“HEAVY DUTY”), ALKALINE, OR LITHIUM BATTERIES!
DO NOT ATTEMPT TO RECHARGE SINGLE-USE BATTERIES!
These batteries may heat up and explode, causing possible injury and damage to the equipment. Avoid short-
ing the plus and minus battery terminals together with metal objects. Battery damage and burns can result! Use
only Williams Sound supplied chargers and rechargeable batteries!
A311
ALKALINE/NiMH
BATTERY SWITCH
CAUTION: RECHARGE
ONLY NiMH BATTERIES
BATTERY REMOVAL
FABRIC STRIP

16
PERSONAL PA®FM Tour Guide Systems
Optional Battery Chargers
RECEIVER OR
TRANSMITTER
CHARGING
INDICATOR
A124
CHG 3512
REAR VIEW
DC POWER
A125
RECEIVER OR
TRANSMITTER
CHARGING
INDICATOR
DC POWER
CONNECTION
CHG 3502 REAR VIEW
Figure M1: CHG 3512 / 3512 PRO Multi-Charger
Figure M2: CHG 3502 Dual-Bay Charger
For more information on available chargers, visit www.williamssound.com or call [phone].

17
PERSONAL PA®FM Tour Guide Systems
Using the System
The nominal operating distance between the transmitter and receiver is about 150 feet. The operating range will vary in dierent
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 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 200 feet. Operating more than one transmitter on the same channel at the same time in the same place will result in
interference.
Using Multiple Systems for Multiple Groups:
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 200 feet between groups. The physical separation of groups takes
advantage of the FM capture eect which causes receivers to lock onto the closest transmitter.
Figure N: Tour Guide Group Separation
In Case Of Difculty
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
o, 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 Transmitter and the earphone or headphone is plugged into the 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 200 feet apart or use separate channels for each system used.
7. If you are still hearing interference on the receivers, turn the transmitter o and listen with a receiver. If you hear the interference
with the transmitter o, you need to change to a clear channel (see pages 8-9). Call your Williams Sound representative at
1-800-843-3544 or [phone] for details.
8. Make sure the transmitter and receiver(s) are on the same channel/frequency.
A378
TOUR GROUP 1 - CHANNEL 1 TOUR GROUP 2 - CHANNEL 1
200 ft

18
PERSONAL PA®FM Tour Guide Systems
Troubleshooting
Problem Solution
Can’t hear the person speaking/no audio · Verify Transmitter and Receiver are both ON
· Verify Transmitter and Receiver are both on the same channel/frequency.
· Verify Transmitter mic is not muted.
· Verify mic volume and aux volume levels - try turning them up.
· Verify the microphone with cord is plugged in. The cord acts as the transmitting
antenna.
· If using the Aux input, verify the aux source is playing, and the level indicator (on the
front of the transmitter) is pulsing.
Can’t hear the person speaking above the
room noise
· Adjust the microphone volume in the menu
· Reposition the microphone closer to the mouth
Limited Range · The microphone cord is the transmitting antenna. Make sure it is not
coiled up or obstructed, and that it is a Williams Sound approved mic.
· Verify the transmitter distance from the receiver - try bringing them closer.
· Verify there are no other transmitters in the area on the same (interfering) channels.
· Transmitter batteries low? Receiver batteries low? Try new batteries and if this
works, recycle the old ones.
Feedback (squealing) · Lower the microphone volume in the menu
· Increase the distance between the microphone and the listening speaker

19
PERSONAL PA®FM Tour Guide Systems
System Specications
Personal PA®Transmitter, Model PPA T46
Dimensions: 4.1” L x 2.8” W x 1.1” D (104 mm x 71 mm x 28 mm)
Weight: 2.6 oz (74 g), no batteries
Color: Black/Silver
Enclosure Material: Shatter-resistant PC/ABS plastic with textured scratch-resistant aluminum faceplate
Battery Type options: Two (2) AA 1.5 V non-rechargeable Alkaline batteries (BAT 001-2), 75 mA nominal current drain, up to 30 hours battery life
Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026-2), 75 mA nominal current drain, up to 20 hours battery life per charge,
recharges in 14–16 hours, uses CHG 3502 or CHG 3512 Charger
Operating Frequencies: Selectable, 17 channels, 72.1 – 75.9 MHz*. Switchable 8 or 17 Channel Mode. (8-channel mode setting corresponds with
PPA R35-8 receiver channels)
Stability: ± .005%, frequency synthesized, crystal reference, PLL
Modulation: Wide-band FM, 75 kHz peak, 75 µS pre-emphasis
RF Output: 80 mV/m at 3 m (max. allowed by FCC rules)
Frequency Response: 180 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 plug
External Display: OLED for status and menu information.
Status: Ch/Freq, Mic Audio Level, Auxiliary Input Audio Level, Battery Status, Mic Mute, Channel Lock, Dual-Preset mode.
Menu: Ch/Freq display mode select, Volume, Aux Input, Compression,
17 or 8-channel mode, screen time out, screen brightness, restore default settings
External Controls: Momentary push button: push and hold 3 seconds for power On/O, push and release for microphone mute On/O. “Up”,
“Down” and “Menu” buttons for accessing and changing transmitter settings. Battery type switch (Alkaline or NiMH) located
behind the battery compartment door
External Indicators: Power LED - Green, ashes when battery is low
Mic Input: 3.5 mm mono jack with electret mic bias, adjustable gain with
25 dB range
Aux Input: 2.5 mm stereo jack, adjustable gain with 60 dB range
Audio Compression: 1:1 (o) or 2:1 (on) selectable in menu
Compatible Receivers: PFM R31, PFM R32, PFM R33, PFM R36, PPA R35, PPA R37, PPA R35-8, PPA R38, PPA R1600
Approvals/Directives: FCC, Industry Canada, RoHS, WEEE
Warranty: Lifetime PLUS Limited Warranty, 90 Days on most accessories.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
This device complies to “RSS-Gen Issue 2 June 2007” for Industrie Canada and FCC part 15.105(b) for the United States. Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device. This device complies with ICES-003 class B. Test data is available from the
manufacturer on request.

20
PERSONAL PA®FM Tour Guide Systems
Dimensions: 4.1” x 2.85” x 1.38” (104 x 72 x 35mm)
Weight: 4.6oz (130g) with batteries. 2.6oz (73g) without batteries
Color: Black
Battery Type: (2) AA Alkaline or 2 x AA NiMH
Battery Life: Two (2) AA non-rechargeable alkaline batteries (BAT 001-2), approx. 50 hrs
(2) AA rechargeable NiMH batteries (BAT 026-2), 1500 mAh, approx. 32 hrs
Current Consumption: 52mA nominal
Temperature Range: – 0 to 50C
Channels 17, accessed via seek button in battery compartment
Operating Freq.: 72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9 MHz*
Intermediate Freq.: 75 kHz
FM Deviation: 75 kHz
De-Emphasis: 75 µS
LED Indicator: Power: Green; Low Battery: Flashes Green
AFC Range: ± 120 kHz
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Input Overload: 100 mV
Frequency Response: 200 – 15 kHz
Modulation: FM, +/- 75 kHz peak deviation
Signal-to-Noise Ratio: 65 dB min @ 100 uV
Receive Antenna: Integral with earphone/headphone cord
Audio Output: 35 mW max, peak into 16 ohms
Output Connector: 3.5 mm stereo/mono phone jack
Earphone: Earbud-type with foam cushion, 3.5 mm plug, 32 Ω
Auto Shut-o Enters sleep mode after approx 6 mins of no RF signal
Approvals: FCC, Industry Canada, RoHS, WEEE
Warranty: Lifetime PLUS Limited Warranty. 90 days on cords, earphones, headphones, batteries and other accessories
PPA Select™Receiver, Model PPA R37
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
This device complies to “RSS-Gen Issue 2 June 2007” for Industrie Canada and FCC part 15.105(b) for the United States. Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including
interference that may cause undesired operation of the device. This device complies with ICES-003 class B. Test data is available from the
manufacturer on request.