Williams Sound TGS 300 Guide

Williams Sound ®
Helping People Hear
FM TOUR GUIDE SYSTEM
Model TGS 300
MANUAL AND USER GUIDE
MAN 118B
Transmitter Model PFM T31
Receiver Model TGS R30

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FM TOUR GUIDE SYSTEM, MODEL TGS 100
INSTALLATION GUIDE & USER MANUAL
Contents Page
System Overview 4
System Components 5
PFM T31 Transmitter
Microphones
TGS R30 Receiver
Headphones & Earphones
Safety Information 6
Recycling Instructions 7
Operating Instructions 7
PFM T31 Transmitter
TGS R30 Receiver
Hints for Using the System
Battery Information 11
Battery Installation
Rechargeable & Non-rechargeable Batteries
Using Optional Battery Chargers
In Case Of Difficulty 14
Warranty 15
System Specifications 16

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Tour Guide Uses the Body Pack
Transmitter With Microphone
FM Radio Signal
Listeners use Personal Receivers with 
Earphones, Headphones, Or Neckloop
The tour guide wears the body-pack transmitter and headset microphone. The guide’s
voice is broadcast as an FM radio signal over a distance of up to 100 meters. Listeners
use the pocket receiver and headphone to hear the speaker’s voice directly, with reduced
background noise. A neckloop telecoil coupler allows the system to be used with telecoil
(T-Switch) equipped hearing aids, at somewhat reduced range.
SYSTEM OVERVIEW
The FM Tour Guide System is a portable, high-performance, wireless system composed of the
PFM T31 Transmitter and TGS R30 Receivers and designed for use in guided tour applications.
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 FM System can be used for large or small tour groups and in noisy or quiet environments.
Your FM 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 difficulties, 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 FM Tour Guide System, don’t hesitate to call Williams Sound at
1-800-843-3544.

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SYSTEM COMPONENTS
þBody Pack Transmitter (PFM T31) with (2) AA batteries (BAT 001)
þNoise-cancelling headband microphone (MIC 086)
þ(6) Personal FM Receivers (TGS R30) w/batteries (BAT 001)
and headphones (HED 021)
þBelt clip cases (CCS 001)
þInstruction Manual
þSystem carry case (CCS 030 S)
THE PFM T31 TRANSMITTER
The PFM T31 Transmitter is a battery-powered body-pack model used with a microphone to pick up
the tour guide's voice. The transmitter produces an FM radio signal to broadcast the tour guide's
voice to the receiver units. A simple slide switch on top of the transmitter turns the unit on or off.
The PFM T31 operates on two AA non-rechargeable alkaline batteries (BAT 001), or two AA
rechargeable NiMH batteries (BAT 026).
MICROPHONES
A noise-cancelling, headband microphone (MIC 086) is the standard microphone. The noise-can-
celling microphone helps to reduce background sounds in noisy environments. The microphone
plugs into the “MIC” jack on top of the Transmitter. The microphone should be positioned directly
in front of the tour guide's mouth to achieve an optimal signal to noise ratio and so that head move-
ment does not affect the loudness of the signal. The microphone cord acts as the transmitting anten-
na.
Optional Microphones
An optional Hearing Protector Headset Microphone (MIC 036) is also available for extremely high
noise environments. It features ear muffs that completely cover both ears and provides 24 dB noise
isolation for hearing protection.
An optional Lapel Clip Microphone can be used in quieter environments like museums or galleries.
The MIC 090 has an omnidirectional pick-up pattern. The MIC 056 has a directional (or cardioid)
pick-up pattern, which will reduce background noise.
A small hand-held microphone (MIC 026) is also available for tour guides who prefer to hold the
microphone.
THE TGS R30 RECEIVER
The TGS R30 Receiver is a battery-powered body-pack receiver used with a headphone to hear the
signal produced by the transmitter. The receiver is pre-tuned to the transmitter and has a user-
adjustable volume control. The headphone plugs into the “EAR” jack on top of the Receiver.
The receiver is turned on by rotating the volume control wheel. The TGS R30 Receiver operates
on two AA non-rechargeable alkaline batteries (BAT 001), or two AA rechargeable NiMH
batteries (BAT 026).

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R
EARPHONE / HEADPHONE OPTIONS
HED 008 HED021 HED 026 EAR 022 EAR 013 EAR 014
HEADPHONES AND EARPHONES
The HED 021 Lightweight Headphone is the standard headset for the Tour Guide System. It offers
excellent sound quality and wearing comfort. The foam earpads may be removed and washed in a
mild detergent, rinsed thoroughly, and air dried. Replacement pads (HED 013) are available.
The headphone plugs into the “EAR” jack on top of the Receiver. The headphones are wired with a
mono plug. If a stereo headphone is substituted, it will only work on one side of the headphone.
OPTIONAL HEADPHONES AND EARPHONES
The HED 008 is a heavy-duty, hearing-protector headset. The HED 008 earmuffs completely cover
the ears and provide 24 dB noise isolation for hearing protection in high noise environments.
The EAR 022 Surround Earphone offers excellent sound quality in a unique style that hangs on the
ear. It is easy to keep clean since the earphone does not enter the ear. It is not recommended for
high noise environments.
The EAR 013 and EAR 014 are single and dual Mini Earphones. The earbud-style features a foam
covering that fits in the outer ear. The foam pads can be removed for cleaning or replacement.
Replacement pads (EAR 015-10) are available.
The stylish HED 026 rear-wear headphone offers excellent sound quality; it rests comfortably over
the ears and wraps around the back of the head for a less obtrusive, relaxed fit.

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CAUTION!
CAUTION!
CAUTION!
SAFETY INFORMATION
HEARING SAFETY
This product is designed to amplify sounds to a high volume level which could poten-
tially cause hearing damage if used improperly. To protect your hearing and the hear-
ing of others:
Make sure the volume is turned down before putting on the earphone or headphone before
adjusting the volume to a comfortable level.
Set the volume level at the minimum setting that you need to hear.
If you experience feedback (a squealing or howling sound), reduce the volume setting and
move the microphone away from the earphone or headphone.
Do not allow children or other unauthorized persons to have access to this product.
1.
2.
3.
4.
BATTERYSAFETY AND DISPOSAL
This product is supplied with disposable Alkaline batteries. Do not attempt to recharge
disposable batteries, which may explode, release dangerous chemicals, cause burns, or
other serious harm to the user or product.
PACEMAKER SAFETY:
Beforeusing this product with a pacemaker or other medical device, consult your physician
or the manufacturer of your pacemaker or other medical device.
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.
1.
2.
BATTERYSAFETY AND DISPOSAL
Help Williams Sound protect the environment! Please take the time to dispose of your
equipment properly.
Product Recycling for Customers in the European Union:
Please do NOT dispose of your Williams Sound equipment in the household trash. Please
take the equipment to a electronics recycling center; OR return the product to the factory for
proper disposal.
Battery Recycling for Customers in the European Union:
Please do NOT dispose of used batteries in the household trash. Please take the batteries to a
retail or community collection point for recycling.
RECYCLING INSTRUCTIONS
8/18/05

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OPERATING INSTRUCTIONS
USING THE PFM T31 TRANSMITTER
Instructions:
Before you begin, make sure you have AA Alkaline batteries installed in the transmitter. See Battery
Information, page 11.
1. Plug the microphone into the “mic” jack on top of the transmitter.
2. Turn the power on: Place the FM switch to the “On” position.
3. Position the microphone as close to the speaker’s mouth as practical.
4. When you are ready to speak, turn the Mic Mute Switch to the “On” position. When you are done speaking,
mute the mic by turning the switch to the “Off” position. This will eliminate any unwanted noise as a result of
the transmitter being on.
Note: The microphone cord is also the transmitting antenna. For maximum range, make sure the microphone
cord is hanging as straight as possible.
5. Remember to turn the transmitter off when you are done using it: Turn the “FM” switch to the
“Off” position.
Mic
Williams Sound FM
Off On
FM
On/Off Switch
Mic Jack
Mic
Mic Mute Switch
NOTE ON THE TRANSMITTER ANTENNA:
The microphone cord is the transmitting antenna. Do not bunch up the cord, wrap it tightly around
your body, or wrap it aroun the transmitter. For maximum range, the cord should hang as straight as
possible. The transmitter can be placed in a pants pocket, or clipped onto a belt or waistband. Make
sure the transmitter is turned OFF when not in use.

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USING THE TGS R30 RECEIVER
Note: Rechargeable batteries are shipped in a discharged state and must be charged overnight
before using.
1. Make sure there are two charged AA batteries in the Receiver. If batteries are not installed,
see Battery Information, page 11.
2. Plug the earphone or headphone into the “Ear” jack on top of the Receiver.
3. Place the headphones over your ears.
4. Turn the power on by rotating the volume control thumbwheel on top of the Receiver.
5. Adjust the receiver volume control to a comfortable listening level.
You should be able to hear someone speaking into the transmitter microphone.
6. Place the receiver in the belt clip case provided. The receiver can be placed in a pants
pocket, or clipped onto a belt, harness, or waistband.
EAR Volume
1
Volume Control 
On/Off Switch
Earphone/Headphone 
Jack
"On" Indicator
LED
Switch Settings
MHz 1 2 3 4 5 6 7 8
72.1 DN UP DN UP DN DN DN DN
72.3 DN UP DN UP UP DN DN DN
72.5 DN UP DN UP DN DN UP DN
72.6 DN DN UP DN DN DN DN UP
72.7 DN UP DN UP UP DN UP DN
72.8 DN UP DN DN DN DN DN UP
72.9 DN UP DN UP DN DN DN UP
74.7 UP DN DN UP UP DN DN UP
75.3 UP UP DN UP DN DN DN DN
75.4 UP UP DN DN UP DN DN DN
75.5 UP UP DN UP UP DN DN DN
75.7 UP UP DN UP DN DN UP DN
75.9 UP UP DN UP UP DN UP DN
Battery
Compartment
12345678
Frequency Switches
CHANGING THE PFM T31 FREQUENCY
Begin by opening the battery compartment door. Remove the batteries, then open the back panel to
expose the circuit board. Referencing the Switch Settings chart (above), adjust the frequency
switches on the PFM T31 transmitter accordingly using a small screw driver or paper clip.
Reinstall the batteries, then close the back of the transmitter. Plug in the mic, and turn on the trans-
mitter to provide a tuning signal for the receivers. Be sure to change the receiver to the correspon-
ding channel.

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IC01
1
1
2
12
R30 R- 31 R-32
1
2
3
4
R7- 4
TUNING COIL
Ferrite Tuning
"Slug"
TGS R30 FREQUENCY CHANGE INSTRUCTIONS
Selecting a frequency for the R30, R31, R32 and R7-4 receivers requires an adjustment to the
internal tuning coil(s). See figure below for receiver types to locate the coils to be adjusted. A
plastic tuning wrench (PLT 005) will be needed to adjust these receiver tuning coils.
Most Williams Sound single channel Receivers are set at the factory to 72.9 MHz. The standard
four-channel receivers (R7-4), channels 1-4, are usually set to frequencies 72.1, 72.5, 72.9, 75.7
MHz respectively.
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.
TOCHANGE THE FREQUENCY TO ANOTHER CHANNEL:
Step 1: Set the transmitter to the channel desired and remove the antenna.
Step 2: Connect an audio source to the transmitter such as a CD or cassette player or
microphone or have someone talk into the transmitter’s microphone.
Step 3: Move the receiver about 25 feet away from the transmitter to set the tuning.

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Tour Group 1

Channel A
30 Meters Tour Group 2

Channel A
FIGURE 4: TOUR GUIDE GROUP SEPARATION
HINTS FOR USING THE SYSTEM
Normal operating distance between the transmitter and receiver is about 30 meters. The operating
range will vary in different buildings and surroundings. In some locations, the signal may momentar-
ily disappear. This is called a “drop-out” and is due to reflection and cancellation of the radio signal.
Moving a few feet will restore the signal.
Keep the transmitter and receiver units at least a meter apart. If the transmitter gets too close to a
receiver, it can 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 30 meters. 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 30 meters between groups.
The physical separation of groups takes advantage of the FM capture effect which causes receivers to
lock onto the closest transmitter.