Williams Sound Satellite Radio TGS SYS A User Manual

Williams Sound ®  
Helping People Hear  
MANUAL AND USER GUIDE  
FM Tour Guide System, 72-76 MHz  
Model TGS SYS A  
Transmitter Model PPA T16  
Optional Receiver Models PPA R7, PPA R7-4  
MAN 015G  
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Introduction:  
The FM Tour Guide System is a portable, high-performance, wireless system composed of the PPA  
T16 Transmitter and PPA R7 Receivers and designed for use in hearing assistance applications. The  
system allows one-way transmission of a tour guide’s voice to hearing impaired group members by  
using an FM radio signal. Using the system helps to overcome background noise and distance from  
the person speaking. The Tour Guide System can be used for large or small tour groups, in noisy or  
quiet environments. Under FCC regulations, the Williams Sound FM Tour Guide System may only be  
used for hearing assistance.  
FM radio signal  
Listeners use a Receiver  
and Headphones  
Tour Guide uses Transmitter  
and Microphone  
The T16 Transmitter:  
The T16 Transmitter is a battery-powered belt pack that is 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 T16  
operates on a 9 Volt alkaline disposable battery or a 9V NiMH rechargeable battery.  
Tour Guide Transmitter  
MIC 044 Headset  
Microphone  
(dual plug model shown)  
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MIC 036 Hearing Protector  
MIC 081, MIC 054 Lapel Clip  
MIC 026 Hand-Held  
Microphones:  
A noise-cancelling, headset microphone (MIC 044) 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 is positioned directly in front of  
the tour guide's mouth for maximum signal to noise ratio and so head movement does not affect  
the loudness of the signal. The microphone cord acts as the transmitting antenna.  
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 NRR  
of attenuation for hearing protection. An optional Lapel Clip Microphone can be used in quieter  
environments like museums or galleries. The MIC 081 has an omnidirectional pick-up pattern. The  
MIC 054 has a directional (or cardioid) pick-up pattern, which will reduce background noise some-  
what. A small hand-held microphone (MIC 026) is also available for tour guides who prefer to hold  
the microphone.  
The R7 Receiver:  
The R7 Receiver is a battery-powered belt pack that is 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/CHG" jack on top of the Receiver. The receiver  
is turned on by rotating the volume control wheel. The receiver operates on a 9 Volt alkaline dis-  
posable battery or a 9V NiMH rechargeable battery.  
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Receiver and HED 021  
Headphone  
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HED 008 Hearing Protector  
EAR 022 Surround Style  
EAR 014, EAR 013 Mini Earphone  
Headphones and Earphones:  
The HED 001 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 for cleaning or  
replacement. Replacement pads are part number HED 003-10.  
The headphone plugs into the "EAR/CHG" 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 head-  
phone.  
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 NRR noise attenuation for hearing protection in high noise environ-  
ments.  
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 are part number EAR 015-10.  
Earpad Care:  
Foam earpads may be removed and washed in a mild detergent, rinsed thoroughly, and air dried.  
Replacement pads are also available from Williams Sound.  
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Operating Instructions:  
(Step 1)  
Install the battery in the Transmitter. A 9V alkaline battery is included with the transmitter.  
If you are using a 9 Volt rechargeable battery, see page 6. Open the battery door on  
the Transmitter by lifting the battery door up. A coin may be used to help open the bat-  
tery door. Carefully insert the battery, observing proper polarity. The large battery termi-  
nal (-) is nearest the top of the compartment.  
DO NOT FORCE THE BATTERY IN BACKWARDS. DAMAGE TO THE TRANSMITTER WILL  
RESULT!  
Close the battery door by snapping it shut. If you are using a disposable battery, use  
only 9V alkaline batteries (Eveready 522 or equiv.). A disposable battery should last 15  
hours. A BAT 003 re-chargeable battery will last about 3 hours per charge.  
Large terminal (-)  
Battery Installation  
(Step 2)  
Plug the microphone into the "MIC/CHG" jack on top of the Transmitter. The Headset  
Microphone boom should be positioned as close to the wearer's mouth as possible with-  
out actually touching. Lapel Clip microphones should be attached to a collar or lapel,  
as close to the wearer's mouth as possible.  
(Step 3)  
NOTE:  
The Transmitter can be placed in a pants pocket or clipped onto a belt or waistband in  
the Belt Clip Case included with the Transmitter.  
The microphone cord is the transmitting antenna. Do not bunch it up or wrap it around  
the transmitter. Allow it to hang as straight as possible.  
(Step 4)  
Turn the Transmitter on by moving the slide switch on top of the Transmitter to "ON."  
To conserve battery life, there is no indicator light. Make sure you turn the Transmitter off  
when it is not in use to conserve the battery.  
Receiver Operation:  
(Step 1)  
Install the battery in the Receiver. A 9V carbon battery is included with each receiver. If  
you are using a rechargeable battery, see page 6. Open the battery door on the  
Receiver by lifting the battery door up. A coin may be used to help open the battery  
door. Carefully insert the battery, observing proper polarity. The large battery terminal (-)  
is nearest the top of the compartment.  
DO NOT FORCE THE BATTERY IN BACKWARDS. DAMAGE TO THE RECEIVER WILL RESULT!  
Close the battery door by snapping it shut. If you are using a disposable battery, you  
can use 9V carbon or alkaline batteries. A disposable carbon battery (Eveready 216 or  
equiv.) should last 15 hours. A disposable alkaline battery (Eveready 522 or equiv.)  
should last about 32 hours. A BAT 003 rechargeable battery will last about 6 hours per  
charge.  
(Step 2)  
(Step 3)  
Plug the headphones or earphone into the "EAR/CHG" jack on top of the Receiver.  
Turn the Receiver on by rotating the volume control wheel. Adjust the volume to a com-  
fortable level.  
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Hints for Using the System:  
Normal operating distance between the Transmitter and Receiver is about 100 feet (30m). 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 reflection and cancellation of the  
radio signal. Moving a few feet will restore the signal.  
Keep the Transmitter and Receiver units at least two feet 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 coil or bunch up the microphone or headphone cords. The cords act as antennas. Let  
them hang at full length for the best results.  
Do not use more than one Transmitter on the same channel (frequency) at the same time unless  
they are physically separated by 50 to 100 feet (15 - 30 m). 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 50 - 100 feet between  
groups. The physical separation of groups takes advantage of the FM capture effect which causes  
receivers to lock onto the closest transmitter.  
Up to four systems can be operated simultaneously in the same facility if they all operate on differ-  
ent channels. Channels A,C,E, and G may be used simultaneously.  
Additional Battery Information:  
Recommended Batteries:  
For Transmitters:  
Eveready 522 Alkaline 9V or equivalent  
BAT 003 rechargeable NiMH only  
BAT 004, BAT 005, or CHG 1269A Chargers only for BAT 003  
For Receivers:  
Eveready 216 Carbon 9V, Eveready 522 Alkaline 9V or equiv.  
BAT 003 rechargeable NiMH only  
BAT 004, BAT 005, or CHG 1269 Chargers only for BAT 003  
Battery Life:  
For Transmitters:  
15 hours for Eveready 522 Alkaline 9V or equivalent  
3 hours per charge for BAT 003 rechargeable  
15 hours for Eveready 216 Carbon 9V or equivalent  
32 hours for Eveready 522 Alkaline 9V or equivalent  
6 hours per charge for BAT 003 rechargeable  
For Receivers:  
If the sound becomes weak or distorted, replace the battery. The indicator light may still be on,  
even with a battery that is weak. Do not leave dead batteries in the receivers.  
Rechargeable Batteries:  
(1)  
Rechargeable batteries are shipped in a discharged condition. They must be charged  
for 12 - 14 hours before using them. Make sure Transmitters and Receivers are turned  
OFF while charging.  
(2)  
Williams Sound products are designed for use with a rechargeable battery (BAT 003)  
and matching charger (BAT 004, BAT 005, or CHG 1269). This is the only type of recharge-  
able battery and charger we recommend. The BAT 003 has an 8.4 V nominal voltage  
and 100mAh capacity, compared to only 7.2V and 60 mAh for other types of  
Page 7  
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Batteries and Chargers  
rechargeable "9V" batteries. The BAT 003 provides significantly longer battery life per  
charge than lower voltage batteries.  
Chargers:  
The BAT 005 Single Charger has a cord that plugs into the receiver "EAR/CHG" jack to charge the  
battery. The BAT 004 Charger has snaps for direct attachment of a 9V rechargeable battery. The  
CHG 1269 Multiple Charger can charge 12 receivers simultaneously through the receiver "EAR"  
jacks. See the instructions included with the CHG 1269 for more information. The battery does not  
have to be removed from the receiver or transmitter for charging with the BAT 005 and CHG 1269  
Chargers.  
Do not mix and match batteries and chargers from different manufacturers. Using the BAT 003 bat-  
tery with chargers designed for lower-voltage batteries can result in under-charging and unsatis-  
factory battery life. Using the BAT 004, BAT 005, or CHG 1269 Charger with low-voltage batteries can  
result in over-charging and battery failure.  
NOTE:  
Do not dispose of batteries in fire. Do not open batteries - toxic chemicals inside.  
DO NOT attempt to recharge disposable batteries!  
Battery Charging Instructions:  
(Step 1)  
(Step 2)  
Make sure the Transmitter or Receiver is turned OFF while it is charging.  
To charge the battery without removing it from the Transmitter or Receiver, use the BAT  
005 Charger or the CHG 1269 Multiple Charger. Plug the Charger cord into the earphone  
jack (labeled EAR/CHG) on a Receiver. Plug the cord into the microphone jack (MIC) on  
Transmitters. Then plug the Charger into an AC wall outlet. The Charger indicator light will  
glow while the battery is charging. Charge for 12-14 hours. DO NOT CHARGE THE BATTER-  
IES LONGER THAN 14 HOURS.  
(Step 3)  
(Step 4)  
To charge the battery outside the unit or to keep a spare battery charged, use the BAT  
004 Charger. Remove the battery from its compartment and attach it to the snaps on  
the Charger. Then plug the Charger into an AC wall outlet and charge for 12-14 hours.  
The battery should be from the DO NOT CHARGE THE BATTERIES LONGER THAN 14 HOURS.  
Expected Battery Life: 6 hours per charge for a Receiver. 3 hours per charge for a  
Transmitter. With normal service, the BAT 003 rechargeable battery should last approxi-  
mately 1 year before it will need to be replaced.  
Page 8  
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Instructions for the R7-4 Multi-Channel Receivers:  
The multi-channel Receivers have a rotary selector knob on top which allows the user to select any  
of four operating channels. The R7-4 tunes channels ACEG. These receivers are designed for use in  
multiple channel systems with a number of tour groups or language groups.  
Re-Tuning the TOUR GUIDE System:  
Radio Interference:  
The TOUR GUIDE System is usually not disturbed by other radio services, however there is no such  
thing as a clear or exclusive channel for ANY radio service. One of the unique features of the  
Williams Sound TOUR GUIDE System is that the operating frequency can easily be changed in the  
field to avoid interference. There are ten possible frequencies for tour guide use (72-76 MHz). The  
TOUR GUIDE System can be quickly changed to any of these frequencies by your Williams Sound  
Authorized Dealer. The Transmitter is changed first. Then the signal produced by the Transmitter is  
used to tune the receivers.  
T16 Transmitter Frequency Change Procedure:  
(Step 1)  
(Step 2)  
(Step 3)  
Remove the Transmitter from the Belt Clip Case.  
Open the battery door and remove the battery.  
Grasp the right corner of the battery door and lift the flap up and to your left. The back  
of the Transmitter case will open like a book, exposing the circuit board.  
(Step 4)  
(Step 5)  
Use the photo below to locate the channel selector switches.  
Use the tip of a paper clip or a small screwdriver (not a pencil point) to move the  
switches to correspond with the switch positions on the programming chart. Select a  
new frequency at least two channels away from the one you are experiencing interfer-  
ence on. DO NOT TOUCH ANY OF THE OTHER ADJUSTMENTS!  
(Step 6)  
Close the back of the Transmitter and install the battery. Plug the microphone in and  
turn the Transmitter on to provide a tuning signal for the receivers. See the next section  
for receiver tuning instructions.  
Page 9  
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Setting the Transmitter Frequency:  
Selector Switches  
Transmitter Case Open  
Page 10  
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Receiver Frequency Change Instructions  
Tuning for the R7, R30, R31, and R32 receivers is determined by a single tuning coil.  
In the R7-4 and R7-6, one coil is assigned to each switch position. See the following  
6 figures and receiver types to locate the coils to be adjusted. A plastic tuning  
wrench (PLT 005) will be needed to adjust these receiver tuning coils.  
1
2
1
2
TUNING COIL  
R30  
R7Y  
R-31  
R-32  
Ferrite Tuning  
"Slug"  
5
1
2
3
4
1
2
3
4
R7-4  
R7-6  
6
Most Williams Sound single channel Receivers are set at the factory to 72.9 MHz. The  
standard four-channel receivers (R7-4NA), Channels 1-4, are usually set to frequen-  
cies 72.1, 72.5, 72.9, 75.7 MHz respectively. The standard six-channel receivers (R7-  
6N), channels 1-6, are set to frequencies 72.1, 72.5, 72.9, 75.7, 74.7 and 75.3 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 receiv-  
er is not possible.  
To Change the Frequency to Another Channel:  
Step 1:  
Step 2:  
Set the transmitter to the channel desired and remove the antenna.  
Connect an audio source to the transmitter such as a CD or cassette  
player or microphone.  
Step 3:  
Step 4:  
Move the receiver about 25 feet away from the transmitter to set the  
tuning.  
Open the battery compartment, then lift up on the battery door to open  
the back of the receiver. This will expose the tuning coil or coils to be  
adjusted.  
Page 11  
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Step 5:  
Step 6:  
Step 7:  
Step 8:  
Locate the Tuning Coil. (See figure on previous page). 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.  
With the earphone or headphone supplied with the receiver plugged  
into the Ear Jack, turn the volume control to a comfortable level, and lis  
ten for the transmitted signal.  
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.  
Turn the tuning slug in a counter-clockwise 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 first 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  
find the center of the point of best response to the program being heard.  
Step 9:  
Mark down the date, and if a new frequency has been chosen, mark it  
down inside the receiver case for future reference.  
In Case of Difficulty:  
If your TOUR GUIDE System is not working, check the following:  
(1)  
(2)  
(3)  
Make sure the batteries are fresh or completely charged and installed with the correct  
polarity.  
Make sure the microphone is plugged into the Transmitter and the headphone is  
plugged into the Receiver. They will not work if they are reversed.  
Move the Transmitter and Receiver closer together. You may be out of range. When  
using the system indoors, it is normal for the signal to momentarily disappear in certain  
locations. This is called a "drop-out". Moving a few feet will restore the signal.  
(4)  
(5)  
Make sure that the Transmitter and Receivers are tuned to the same channel. The units  
have stickers inside the back cover identifying the channel.  
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 INTER-  
FERENCE IF THEY ARE CLOSE TOGETHER. Keep the systems 50 - 100 feet apart or use sep-  
arate channels for each system used.  
(6)  
(7)  
If the rechargeable batteries will only work for a short period of time (less than 1 hour)  
even after it is fully charged, it must be regenerated. Leave it in the unit, with the unit  
turned on, for 5 - 6 hours Then turn the unit off and charge for 14 - 16 hours. This should  
restore normal battery life. The rechargeable battery will gradually lose its capacity over  
time and should be replaced every year.  
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 the re-tuning instructions.  
Page 12  
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Warranty  
The Williams Sound Tour Guide System is engineered and designed to provide you with many years  
of reliable service. Williams Sound warrants it against defects in materials and workmanship for FIVE  
(5) years EXCEPT FOR earphones, headphones, rechargeable batteries, chargers, cables, anten-  
nas, carry cases, and all other accessory products. Accessory products carry a 90 day warranty.  
If the product fails within the specified warranty period, Williams Sound will determine whether to  
repair or replace the defective equipment. This warranty does not apply to physical damage,  
abuse, mis-use, or products that have been modified.  
If you experience difficulty with your system, call for Customer Assistance:  
1-800-843-3544.  
If it is necessary to return the system for service, a Williams Sound representative will give you a  
Return Authorization Number (RA) and shipping instructions.  
Pack the system carefully and send it to:  
Williams Sound Corp.  
10321 West 70th Street  
Eden Prairie, MN 55344-3446 USA  
Phone: 800-843-3544  
952-943-2252  
Fax:  
TTY:  
952-943-2174  
952-943-9675  
Your warranty becomes effective the date you purchase your system. Your returned warranty card  
is our way of knowing when your warranty begins. It also gives us important information about your  
system including the serial number. This information will help us serve you better in the future. Please  
take a moment to complete and mail the attached card. Thank you.  
Page 13  
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FM TOUR GUIDE SYSTEM SPECIFICATIONS  
PERSONAL PA Transmitter, Model T16  
Dimensions:  
Weight:  
3-5/8" L x 2-3/8" W x 7/8" H (92.1mm x 60.3 mm x 22.2 mm)  
3.2 oz (90 g) with 9V battery  
Color and Material:  
Gray, polyallomer  
Battery Type:  
Battery Drain:  
Battery Life:  
9 Volt, Eveready 522 Alkaline or BAT 003 7-cell NiMH,  
30 mA, nominal  
15 hours with Eveready 522, 3 hours/charge with BAT 003  
Operating Frequency:  
*10 channels, 72.1, 72.3, 72.5, 72.7, 72.9, 75.5, 75.7, 75.9, 74.7, 75.3 MHz  
(Ch. G, 75.7 MHz is standard)  
Stability:  
Modulation:  
+ .005%, frequency synthesized, crystal reference, PLL  
Wideband, 75 KHz  
Limiter:  
RF Output (Field Strength):  
FCC ID:  
Fast-attack, fast decay compressor  
50 mW typical  
CNMT16  
Frequency Response:  
Distortion:  
100 to 10 KHz, + 3 dB  
1% max., THD  
Signal-to-Noise Ratio:  
Automatic Gain Control:  
Transmit Antenna:  
Microphone:  
50 - 55 dB, with R7 Receiver  
40dB range, 30 mV threshold  
Integral with 40" microphone cord  
Noise-cancelling headset, condenser, powered by the transmitter,  
40" cord, 3.5 mm mini phone plug.  
On/Off switch, slide-type  
Controls:  
Microphone Connector:  
3.5 mm mini phone jack, also serves as a charging jack for rechargeable  
battery  
PERSONAL PA Receiver, Model R7  
Dimensions:  
3-5/8"L x 2-3/8"W x 7/8" H (92.1mm x 60.3mm x 22.2mm)  
Weight:  
Color and Material:  
3.2 oz (90 g) with 9V battery  
Gray, polyallomer  
Battery Type:  
Battery Drain:  
Battery Life:  
9 Volt, Eveready 522 Alkaline or BAT 003 NiMH  
14 mA, nominal  
32 hours with Eveready 522, 6 hrs/charge with BAT 003  
FCC ID:  
CNMR7  
Operating Frequency:  
Intermediate Frequency:  
FM Deviation:  
*Pre-Tuned, Adjustable, 72 MHz - 76 MHz  
70 KHz  
15 KHz, 75 µsec de-emphasis  
AFC Range:  
+ 300 KHz  
Sensitivity:  
Squelch:  
2 uV at 12 dB Sinad with squelch defeated  
Squelches at 10 uV for minimum 50 dB S/N ratio  
20 mV  
100 to 10KHz, + 3 dB  
50 dB at 10 uV  
Input Overload:  
Frequency Response:  
Signal-to-Noise Ratio:  
Receive Antenna:  
Audio Output:  
Integral with earphone cord  
250 mW, max. at 16 Ohms  
Output Connector:  
3.5 mm mini phone jack, also serves as a charging jack for rechargeable  
battery  
Headphone:  
Lightweight, mono, 3.5mm plug, 16  
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE  
Page 14  
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Williams Sound Corp.  
10321 West 70th St., Eden Prairie, MN 55344-3446  
U.S.A. 800-328-6190 / 952-943-2252 / FAX: 952-943-2174  
© 2005 Williams Sound Corp. MAN 015G  
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