Audio Resource Group TX72 Bodypack transmitter Guide

MANUAL and USER GUIDE
CONGRATULATIONS!
Your TALK AND LISTEN® System has been engineered and designed to provide you many years of reliable
service. This manual contains vital information regarding system overview, safety information, use,
operating tips and instructions, battery information, troubleshooting and warranty information.
We recommend it be stored in the carry case or in another safe place for easy and frequent reference.
1

CONTENTS
SAFETY INFORMATION 3
SYSTEM OVERVIEW 4
BATTERY INFORMATION 5
Battery installation
Rechargeable & Non-Rechargeable Batteries
OPERATING INSTRUCTIONS 6
ARG-TX72BP Transmitter
ARG-RX72BP Receiver
Channel Selection and Settings
LCD Display
Hints for using the System
IN CASE OF DIFFICULTY 12
COMPLIANCE 13
WARRANTY 14
SYSTEM SPECIFICATIONS 15
2

SAFETY INFORMATION
HEARING SAFETY
CAUTION!
This product 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. Set the volume level at the minimum setting before placing the listening
accessory on your ears. Then adjust the volume to a comfortable level.
2. If feedback (a high-pitched squealing sound) occurs, immediately move
the receiver away from the transmitter and reduce the volume level.
3. Do not allow children or other unauthorized persons access to this product.
3

SYSTEM OVERVIEW
Your Talk and Listen® System is a portable, high-performance communication system designed to be
transmitter, microphone, receiver, listening device and batteries.
The transmitter broadcasts a high-quality one-way audio signal to an unlimited number of receivers
providing crystal clear FM quality audio to each listener.
Much like a miniature radio station, the speaker uses a transmitter to broadcast an FM radio signal and
the listeners use a receiver to hear the FM radio signal. The transmission range of this system is 100m
L.O.S. (line of site)
4

BATTERY INFORMATION
In normal use, two AA 1.5V alkaline batteries will last about 30-40 hours in the ARG-TX72BP transmitter and
approximately 40-50 hours in the ARG-RX72BP receiver. If the sound becomes distorted or weak, replace the
batteries.
Please help ARG, Inc. protect the environment by taking time to dispose of your used equipment properly. Do
product to local recycling collection centers OR, return the products to the factory for proper recycling.
RECYCLING INSTRUCTIONS
CAUTION!
NON-RECHARGEABLE BATTERIES
The ARG-TX72BP transmitter and ARG-RX72BP receiver can use 1.25V AA NiMH rechargeable batteries
(ARG-BATAA). With 5-6 hours of charging, these NiMH batteries are designed to operate an ARG-TX72BP
transmitter for approximately 30-40 hours, and ARG-RX72BP receiver for 40-50 hours.
Rechargeable batteries will normally need to be replaced after 1-2 years of use.
Do not leave batteries installed for long periods of inactivity because battery leakage can become a prob-
lem which is not covered by our lifetime warranty.
Do not attempt to recharge disposable batteries, which may explode, release danger-
ous chemicals, cause burns or cause other serious harm to the user or product.
Avoid shorting the batteries by placing plus and minus battery terminals together with
metal objects. Battery damage and burns can result!
tDo not open batteries-toxic chemicals inside.
RECHARGEABLE BATTERIES
IMPORTANT RECHARGEABLE BATTERY INFORMATION
5

OPERATING INSTRUCTIONS
Before installing batteries, determine if they are carbon zinc, heavy duty, alkaline or rechargeable. Open the battery
compartment door and locate the “ALK/NiMH” switch. If using carbon zinc, heavy duty or alkaline batteries slide the
switch to the“ALK”position; if using NiMH rechargeable batteries slide the switch to the“NiMH”position.
Install (2) AA style batteries by pressing them into place, observing the proper battery polarity. Incorrect insertion may
cause both mechanical and electrical damage not covered by the limited lifetime warranty. Units will not work if the
batteries are incorrectly installed.
Plug the microphone into the 3.5mm audio input jack located on the top of the transmitter housing. The microphone
cable is the transmitter antenna. Do not bunch up the cord, wrap it tightly around your body or wrap it around the trans-
mitter. For maximum range, the cord should hang loosely from the microphone to the transmitter. Use only Talk and
reduced transmission range between the transmitter and receiver(s).
Turn the power switch on top of the transmitter to “ON”. The LCD backlight will appear and stay on until it detects 10
back on once any of the control buttons are pressed.
number, locate the“LOCK”button, press and hold it for three seconds to unlock the transmitter. The ”lock”icon on the LCD
display will disappear once the unit is unlocked. Use the “+” and “-“ buttons on the front panel to scroll through the
channels and choose the appropriate channel. After 10 seconds of inactivity the transmitter will automatically lock and
the“LOCK”icon will reappear on the display.
To temporarily silence during use, press and hold the “-” button until the “Gain Indicator” (number on the right of the
screen under the LCD display) starts to ash, this indicates the audio has been muted. Repeat the process to restore
the audio signal. The “Gain Indicator” icon will stop ashing.
USING THE ARG-TX72BP TRANSMITTER
1.
2.
3.
4.
5.
6.
7.
6

TRANSMITTER PRODUCT FEATURES
+ -
3.5mm Audio Input Jack
Power ON/OFF Switch
ON/Low/Charging Indicator LED
Liquid Crystal Display (LCD)
Channel/Volume/Squelch Button
Set Button
Battery Compartment
ALK/NiMH Selector Switch
Lock/Unlock Button
USB Power/Charging Port
Belt Clip
Battery Door Latch
Mute Button
1
2
3
4
5
6
7
8
9
10
11
12
13 1 2 3
4
5
6
8
7
9
11
13
10
12
7

Before installing batteries, determine if they are carbon zinc, heavy duty, alkaline or rechargeable. Open the battery
compartment door and locate the “ALK/NiMH” switch, if using carbon zinc, heavy duty or alkaline batteries slide the
switch to the“ALK”position. NiMH rechargeable batteries slide the switch to the“NiMH”position.
Install (2) AA style batteries by pressing them into place, observing the proper battery polarity. Incorrect insertion may
cause both mechanical and electrical damage not covered by the limited lifetime warranty. Units will not work if the
batteries are incorrectly installed.
Plug the headphone/earphone into the 3.5mm audio output jack located on the top of the receiver housing. The
headphone/earphone cable acts as the receiver antenna. Do not bunch up the cord, wrap it tightly around your body
or wrap it around the receiver housing. For maximum range, the cord should hang loosely from the
headphone/earphone to the receiver. Use only Talk and Listen approved headphone/earphone, substitutions can
transmitter and receiver(s).
Turn the power switch on top of the Receiver to“ON”. The LCD backlight will appear and stay on until it detects 10
backlight will automatically
come back on once any of the control buttons are pressed again.
The headphone/earphone volume level on the receiver automatically defaults to “3” at start up to protect the user
from accidental ear damage. To view and adjust the volume level press the“+”or“-“buttons on the front panel, the LCD
backlight will automatically light up and the volume setting number will appear on the LCD display. To adjust the
volume level use the“+”or“-“ buttons to set at an appropriate listening level. Once the receiver detects 10 seconds of
open the battery compartment door, locate the“LOCK”button, press and hold for three seconds to unlock the receiver.
The”lock”icon on the LCD display will disappear indicating the unit is now unlocked for programming. Using the“+” or
“-“ buttons on the front panel to scroll through the available channels, select the channel. After 10
seconds on inactivity the receiver will automatically lock and the“LOCK”icon will reappear on the LCD display and the
to the headphone/earphone when there is an extremely weak signal that is weaker than the noise it is receiving or
there is no radio signal at all, either way creates annoying uncomfortable noise. This feature stops the
headphone/earphone from being able to produce the unwanted noise. The squelch setting is preset at the factory to
“3”; this is a general setting which will work for most environments. To see what squelch setting your receiver is set on,
open the battery compartment door, locate the“SET”button, press once and the squelch“SQL”number will appear on
the LCD display, it will be displayed for 5 seconds and then disappear. To adjust the squelch setting, open the battery
compartment door, locate the“LOCK”and“SET”buttons, press both simultaneously for a few seconds and the squelch
“SQL” number will appear on the LCD display, use the “+” or “-“ buttons on the front panel to choose a new setting.
After 10 seconds on inactivity the Receiver will automatically lock, the“LOCK”icon will reappear on the LCD display and
USING THE ARG-RX72BP RECEIVER
1.
2.
3.
4.
5.
6.
7.
8.
8

RECEIVER PRODUCT FEATURES
+ -
3.5mm Audio Output Jack
Power ON/OFF Switch
ON/Low/Charging Indicator LED
Liquid Crystal Display (LCD)
Channel/Volume/Squelch Button
Set Button
Battery Compartment
ALK/NiMH Selector Switch
Lock/Unlock Button
USB Power/Charging Port
Belt Clip
Battery Door Latch
1
2
3
4
5
6
7
8
9
10
11
12
1 2 3
4
5
6
8
7
9
11
10
12
R
9

TRANSMITTER/RECEIVER LCD DISPLAY
Figure 5: LCD Display
Signal Strength Memory
Group
Channel Squelch Frequency
Volume
Lock/Unlock
Battery Level
Strong Signal
Weak Signal
Battery full
Battery low
Channel lock
10

Maximum operating distance between the transmitter and receiver is 100m (LOS). The operating range will
tion may restore the signal.
Getting transmitters too close to one another may cause signal interference, even when they are each on a
three feet of separation between them to avoid this.
Receivers are not subject to interference when in close proximity to one another, so listeners may sit close
interference may occur. Maintain three feet of separation between a receiver and transmitter to avoid this.
HINTS TO USING YOUR TALK AND LISTEN® WIRELESS SYSTEM
Figure 6: Transmitter Group Separation
System One Transmitter
on Channel 1 Maintain a minimum of
three feet separation
between transmitters
to avoid interference
Receivers may be close together, regardless of channel setting;
but should be at least three feet away from a transmitter
System Two Transmitter
on Channel 3
11

If your Talk and Listen® 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 will only work for a short period of time (less than 1 hour) even after
they are fully charged, they must be regenerated. Turn the transmitter(s) or receiver(s) on and leave
until the batteries are completely dead, then fully charge again. This should restore normal battery life.
Rechargeable batteries will gradually lose their capacity over time and should be replaced every
1 to 2 years.
4. Make sure the microphone is plugged into the ARG-TX72BP transmitter and the
earphone/headphone is plugged in the ARG-RX72BP 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 in any direction may restore the signal.
6. When using two or more transmitters simultaneously do not use adjacent channels if possible,
example: if your system has 3 total channels (1, 2, 3) and you want to use two transmitters
simultaneously, set TX1 to channel 1 and TX2 to channel 3 leaving channel 2 as a unused channel.
This creates more spacing between the channels being used so there is less chance for the two
frequencies being used to cause interference with each another. The incorrect method would be to
set TX1 to channel 1, TX2 to channel 2 and leave channel 3 unused, this method would have a higher
chance of the two channels being used interfering with each other because there is no space
between them.
IN CASE OF DIFFICULTY
clear channel.
12

This transmitter (ARG-TX72BP) is authorized by rule under the Low Power Radio Service (47 C.F.R. part 95) and
must not cause harmful interference to TV reception or United States Navy SPASUR installations. You do not
need an FCC license to operate this transmitter. This transmitter may only be used to provide: auditory assis-
tance to persons with disabilities, persons who require language translation, or persons in educational
settings; healthcare services to the ill; law enforcement tracking services under agreement with a law
enforcement agency; or automated maritime telecommunications systems (AMTS) network control commu-
nications. Two-way voice communications and all other types of uses not mentioned above are expressly
prohibited.
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.
COMPLIANCE
13

ARG develops, designs and manufactures our own products in order to provide our customers the highest
quality products possible which provide many years of trouble-free service. ARG warrants our products from
the date of purchase to be free from defects in materials and workmanship under normal use and conditions
for lifetime of the product. Warranty only applies to the original buyer. Warranty is void if products have been
to normal wear and tear of the products' useful lifetime. ARG, Inc is not liable, without limitation to any person
or entity, for any direct, incidental, consequential damages or medical expenses caused by any use, defect,
failure or malfunction of the product. The terms of the warranty are governed by the laws of the state of
North Dakota, USA. Only with prepaid shipping and a return authorization number will returned products be
accepted by ARG, Inc. For more information Contact ARG, Inc. at 888-468-4552.
call Toll-Free for Customer Assistance: 1-888-468-4552
If it is necessary to return your system for service, please contact your Customer Service Representative for a
Return Authorization Number prior to shipping.
Mail: Audio Resource Group, Inc.
ATTN: Repair Dept.
440 Ramsland Ave
Hannaford, ND 58448
LIMITED WARRANTY
14
Fax: [phone]
Phone: [phone]
Email:
[email protected]
www.argaudio.comWeb:

+
-
1.03”
3.19”
2.45”
The ARG-TX72BP is a lightweight portable 17 channel transmitter providing up to 8 simultaneous audio channels with an opera-
tional range of 100m (line of site). Each transmitter is enclosed in a durable ABS body pack housing and is digitally tuned to operate on the 72-76MHz bandwidth. Each transmitter has a Liquid Crystal Display (LCD) that indicates Signal Strength, Battery Level, Volume Level, Lock Indicator and Channel Settings. The 3.5mm microphone input jack also doubles as an auxiliary input. The ARG-TX72BP operates on either (2) standard 1.5V Alkaline AA batteries (ARG-BTAA) or (2) standard 1.25V AA NiMH rechargeable batteries (ARG-BCRAA). Both options provide 30-40 hours of continuous operation. The ARG-PS001, a USB to AC power supply/ battery charger which charges individual units in 5-6 hours, is an additional option.
3.19” H x 2.45”W x 1.03” D (81mm x 62mm x 26mm) 2.19oz (62g) Excluding batteries Cool Silver (2) 1.5V AA Alkaline Batteries (ARG-BTAA), or (2) 1.25V 2650mAh AA rechargeable NiMH batteries
(ARG-BCRAA), both providing 30-40 hours of operation. The USB charging port supplies 400-500mAh capable of recharging NiMH batteries in 5-6 hours. An additional built-in safety feature protects the batteries from being over-charged or possible over-heating. Optional accessories include ARG-PS001, a USB to AC power supply/battery charger. 80mAH
Power on: Green Low Battery: Red Battery Charging: Flashing Red A custom backlit LCD showing the Signal Strength, Battery Level, Volume Level, Lock Indicator and Channel Settings.
+/- .005%, Frequency Synthesized, Crystal reference, PLL Wide-band FM, 75kHz pk 80mV/m at 3m 20mV 200Hz to 13kHz, +/-3dB at 1% max. THD 70dB (typical) Transmitted Microphone cable Electret type, 3.5mm Mono Phone plug 3.5mm Mono Phone Jack
used to adjust the Channel settings. The“Lock/Unlock” and “Set” momentary pushbutton switch is used to adjust the
transmitter settings. The“ALK/NiMH” slide switch is used to change between Alkaline or Rechargeable NiMH battery modes. The“Mute” momentary pushbutton is used to temporarily mute the audio signal. ABS with textured surface 100m (L.O.S.)
A Limited lifetime warranty is standard with optional protection coverage programs available. FCC regulations, section 15.21, requires the user to comply with the rules of transmitter operation. Any changes or authority to operate the equipment.
Dimensions: Weight: Color: Battery Type: Battery Charging:
Output Consumption:
LED Indicator:
Display:
Operating Frequencies:
Stability: Modulation: RF Output: Input Overload: Frequency Response: Signal to Noise Ratio: Transmit Antenna: Microphone: Microphone/Aux Inut: External Controls: Material: Distance Coverage: Approvals: Warranty: Note:
AUDIO RESOURCE GROUP, INC.
440 Ramsland Ave | Hannaford, ND | 58448 | 888-468-4552 | ARG-SS-001 www.argaudio.com
ARG-TX72BP
Multi-Channel FM Transmitter
Available Frequencies: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6) 75.9MHz (7) 72.2MHz (8) 72.3MHz (9)
72.4MHz (10) 72.6MHz (11) 72.7MHz (12) 72.8MHz (13) 75.4MHz (14) 75.5MHz (15) 75.6MHz (16) 75.8MHz (17)
Group 1: 72.9MHz (3) * *To change frequency, you must send equipment to ARG for re-programming
Group 2: 72.1MHz (1) 72.9MHz (3) Group 3: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3)
Group 4: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4)
Group 5: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5)
Group 6: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6)
Group 7: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6) 75.9MHz (7)
Group 8: 72.1MHz (1) 72.3MHz (9) 72.6MHz (11) 72.8MHz (13) 74.7MHz (5) 75.4MHz (14) 75.7MHz (4) 75.9MHz (7)
** Group 8 is not compatible with Groups 1-7
Group 9: Custom congure up to 8 channels from 72.1MHz to 75.9MHz with optional programming module (ARG-PM)
Specications are subject to change without notice. The FCC has approved the operation of this device in the USA. FCC rules limit the use of this product to auditory assistance.

+
-
1.03”
3.19”
2.45”
The ARG- RX72BP is a lightweight portable 17 channel receiver providing
up to 8 simultaneous audio channels with an operational range of 100m (line of site). Each receiver is enclosed in a durable ABS body pack housing and is digitally tuned to operate on the 72-76MHz bandwidth. Each receiver has a Liquid Crystal Display (LCD) indicating Signal Strength, Battery Level, Volume Level, Lock Indicator and Channel
Settings. The 3.5mm microphone input jack also doubles as an auxiliary input. The ARG-RX72BP operates on either (2) standard 1.5V Alkaline AA batteries (ARG-BTAA) or (2) standard 1.25V AA NiMH rechargeable batteries (ARG-BCRAA). Both battery options provide 40-50 hours of continuous operation. When using NiMH rechargeable batteries ONLY, receivers can be recharged individually with the optional USB to AC power supply/battery charger (ARG-PS001).
3.19” H x 2.45”W x 1.03” D (81mm x 62mm x 26mm) 2.19oz (62g) Excluding batteries Dark Blue (2) 1.5V AA Alkaline Batteries (ARG-BTAA), or (2) 1.25V 2650mAh AA rechargeable NiMH batteries
(ARG-BCRAA), both providing 40-50 hours of operation. The USB charging port supplies 400-500mAh capable of recharging NiMH batteries in 5-6 hours. An additional built in safety feature protects the batteries from being over-charged or possible over-heating. A USB to AC power supply/ battery charger (ARG-PS001) can be purchased separately.
60mAH Power on: Green Low Battery: Red Battery Charging: Flashing Red A custom backlit LCD showing the Signal Strength, Battery Level, Volume Level, Lock Indicator and Channel Settings.
10.7MHz +/- 75kHz 2uV at 12dBSINAD with Squelch defeated 20mV 40Hz to 15kHz, +/-3dB 70dB at 100uV Earphone/Headphone cable 100mW, maximum 16 Ohm load 3.5mm Mono Phone Jack Adjustable from 0-9 *Factory preset at 3
used to adjust the Channel settings. The“Lock/Unlock” and “Set” momentary pushbutton switch is used to adjust the
transmitter settings. The“ALK/NiMH” slide switch is used to change between Alkaline or Rechargeable NiMH battery modes. The“Mute” momentary pushbutton is used to temporarily mute the audio signal. ABS with textured surface 100m (L.O.S.) This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions (1) This device may not cause harmful interference and (2) this device must accept any interference received, including interference that may cause undesired operation. A Limited lifetime warranty is standard with optional protection coverage programs available.
Dimensions: Weight: Color: Battery Type: Battery Charging:
Output Consumption:
LED Indicator: Display:
Operating Frequencies:
Intermediate Frequency:
FM Deviation: Senstivity:
Input Overload: Frequency Response:
Signal to Noise Ratio:
Receiver Antenna:
Audio Output: Microphone/Aux Inut:
Squelch:
External Controls: Material: Distance Coverage: Approvals: Warranty:
AUDIO RESOURCE GROUP, INC.
440 Ramsland Ave | Hannaford, ND | 58448 | 888-468-4552 | ARG-SS-002 www.argaudio.com
ARG-RX72BP
Multi-Channel FM Receiver
R
R
Specications are subject to change without notice. The FCC has approved the operation of this device in the USA. FCC rules limit the use of this product to auditory assistance.
Available Frequencies: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6) 75.9MHz (7) 72.2MHz (8) 72.3MHz (9) 72.4MHz (10)
72.6MHz (11) 72.7MHz (12) 72.8MHz (13) 75.4MHz (14) 75.5MHz (15) 75.6MHz (16) 75.8MHz (17)
Group 1: 72.9MHz (3) * *To change frequency, you must send equipment to ARG for re-programming
Group 2: 72.1MHz (1) 72.9MHz (3)
Group 3: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3)
Group 4: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4)
Group 5: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5)
Group 6: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6)
Group 7: 72.1MHz (1) 72.5MHz (2) 72.9MHz (3) 75.7MHz (4) 74.7MHz (5) 75.3MHz (6) 75.9MHz (7)
Group 8: 72.1MHz (1) 72.3MHz (9) 72.6MHz (11) 72.8MHz (13) 74.7MHz (5) 75.4MHz (14) 75.7MHz (4) 75.9MHz (7)
** Group 8 is not compatible with Groups 1-7
Group 9: Custom congure up to 8 channels from 72.1MHz to 75.9MHz with optional programming module (ARG-PM)