univox GTA-T1 Go Talk Two Way Communication Radio System User Manual

The GoTalk is a two-way communication radio system designed for
various applications such as guided tours, interpretation,
collaboration, sports events, education, and more. It includes
transceivers, charging options, headsets, headphones, and
accessories to enhance communication experiences.

Product Usage Instructions

Components

The GoTalk system includes transceivers, charging options, and
accessories. Ensure all components are properly connected and
charged before use.

Functionality

The system allows for two-way communication between the Leader,
Sub-Leader, and Participant units. Users can change settings,
adjust volume levels, and create groups for seamless
communication.

Pairing and Group Setup

To pair devices, follow the instructions in the manual. Create
groups with designated roles for effective communication within
specific environments.

Maintenance

Regularly clean and disinfect the units following the provided
guidelines. Properly store and handle the devices to ensure
longevity. Pay attention to battery care and charging
practices.

Troubleshooting

If you encounter issues like no power, audio problems, signal
reception issues, or distorted sound, refer to the troubleshooting
section in the manual for solutions.

FAQ

Q: How do I pair devices in the GoTalk system?

A: To pair devices, turn on both units, navigate to the pairing
option in the menu, and follow on-screen instructions to establish
a connection.

Q: Can I use any headset with the GoTalk system?

A: The system is compatible with specific headsets listed in the
manual. Ensure you use approved headsets for optimal
performance.

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Univox® GoTalk
Two-way Communication Radio System
User manual
LET’S GO!

Introduction
Dear Customer,
We would like to take this opportunity to say thank you for choosing Univox and for your support in our ongoing mission to bring affordable, high-quality products to market, something we’ve been doing since 1965. We hope that this system will serve you well for many years to come. As part of Univox’s long-term goals, we continuously strive to innovate new products and improve existing ones. We always keep you, the customer and end-user, in mind when designing new products, and we work tirelessly for accessibility and equality. Everyone should hear everything! To get in contact with your local distributor, please visit univox.eu. If you’d rather get in touch with us directly, you can do so at: Phone: +46 8 767 18 18 Email: support@edin.se
Thank you, and enjoy the experience of perfect audio!
Sincerely, Mattias Arrhenius, Managing Director, and the team at Univox
2

Table of contents

Introduction

Important Safety Instructions

GENERAL INFORMATION

HEARING SAFETY

MEDICAL DEVICE SAFETY

SAFETY INSTRUCTIONS FOR LITHIUM-ION BATTERY

GoTalk Components

TRANSCEIVERS

CHARGING OPTIONS

ACCESSORIES

LIST OF ACCESSORIES AND DESCRIPTION

GoTalk Definitions

GOTALK SYSTEM

PAIRING

LEADER, SUB-LEADER AND PARTICIPANT

GOTALK SECURITY

GoTalk Unit Overview

GTA-T1 LEADER / GTA-T2 SUB-LEADER

GOTALK GTA-R PARTICIPANT

GoTalk Functionality

COMPATIBLE HEADSETS

CHANGING SETTINGS

GTA-T1 LEADER UNIT

GTA-T2 SUB-LEADER UNIT

SIDETONE

BUSY TONE

TALK BUTTON

BATTERY INDICATOR

STATUS INDICATOR

AUTO POWER OFF

CREATING A GROUP AND PAIRING

UNPAIR DEVICE

RELEASE AND DISBAND GROUP

CHANGING CHANNELS

HAC ENABLED

CHANNELS, FREQUENCY AND RANGE

Applications

GUIDED TOURS

INTERPRETATION

COLLABORATION AND MEETINGS

SPORTS EVENTS

EVENTS, PRODUCTION AND WIRELESS INTERCOM 12

LEISURE

SILENT MEETINGS

EDUCATION

GoTalk Products and Accessories 13

TRANSCEIVERS

CHARGING OPTIONS

HEADSETS AND HEADPHONES

ACCESSORIES

Specifications

GOTALK GTA-T1 / GTA-T2 / GTA-R

GOTALK GTA-CU4

GOTALK GTA-CT6 / GTA-CT12 / GTA-CC24

GOTALK GTA-HS1

GOTALK GTA-HP1 / GTA-HS2 / GTA-HS3

GOTALK GTA-HS4 / GTA-HS5

Product maintenance

CARE, CLEANING, AND DISINFECTING

GENERAL CLEANING

DISINFECTING

CHARGING TRAYS AND CASES

STORAGE

HANDLING

BATTERY CARE

Troubleshooting

THE UNIT HAS NO POWER

THERE’S NO AUDIO

I CAN’T RECEIVE A SIGNAL

THE AUDIO IS DISTORTED

THE BATTERY ISN’T CHARGING

I CANNOT TRANSMIT

Compliance information

WARRANTY

IMPORTANT INFORMATION

Recycling

PRODUCT RECYCLING

BATTERY RECYCLING INFORMATION

Contact Information

Important Safety Instructions
Read the following information before you use your GoTour system. GENERAL INFORMATION 1. Read these safety instructions and the instruction manual of the product. 2. Store and keep these safety instructions and the instruction manual of the product. Always include all instructions when
passing the product on to third parties. 3. Heed all warnings. 4. Follow all instructions. 5. Do not expose to direct sunlight for long periods of time. 6. Do not store near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat. 7. Refer all service to qualified service personnel. Servicing is required when the apparatus has been damaged in any way,
exposed to rain or moisture, does not operate normally, or has been dropped.
CAUTION
HEARING SAFETY This product is designed to amplify audio to a high volume level, which could potentially cause hearing damage if used improperly. To protect your hearing, make sure the volume is turned down before putting on the headset. Then, adjust the volume up to the minimum setting required to hear clearly. Do not allow children or other unauthorized individuals to have access to this product without supervision.
CAUTION
MEDICAL DEVICE SAFETY Before using this Univox product with an implantable or other medical device, consult your physician or the manufacturer of your implantable or other medical device. Always make sure you are using this product in accordance with the safety guidelines established by your physician or the implantable device manufacturer.
WARNING
SAFETY INSTRUCTIONS FOR LITHIUM-ION BATTERY These products uses a Lithium-Ion battery: 3.7 V, 1300 mAh. Use only the battery that comes with your device or replacement batteries designed for use in this device. Do not dismantle, open, or shred secondary cells or batteries. Do not expose cells or batteries to heat, open flame, or water. Avoid storage in direct sunlight. Do not use any charger other than that specifically provided for use with the equipment. Defective or exhausted batteries should never be disposed of as municipal waste. Return old batteries to the battery supplier, a licensed battery dealer, or a designated collection facility. Do not incinerate batteries. Do not replace the batteries in potentially explosive environments, such as rooms where flammable liquids or gases are present. Lithium batteries have limited lifetimes. Any Lithium battery that shows any signs of damage, including swelling, should be properly discarded immediately.
Do: · Fully charge the device before first use. · Recharge when the battery capacity is below 50%. · Make sure that the battery capacity is above 50% before long-term storage. Charge the device every 3 months. · Stop using the device if it is overheating or if abnormal battery function is suspected. Contact your supplier for further
inspection or replace the battery.
4

GoTalk Components
GoTalk refers to the complete system, which comprises different GoTalk components.
TRANSCEIVERS There are 3 types of transceivers in the GoTalk System. A transceiver is a device that can both transmit and receive signals. The 3 transceivers are: the GTA-T1 Leader unit, the GTA-T2 Sub-Leader unit, and the GTA-R Participant unit. A system must include one GTA-T1 Leader unit and any number of GTA-R Participant units, GTA-T2 Sub-Leader units, or a combination of both. The GoTalk transceivers are currently available in 863 MHz and 915/928 MHz frequencies. The 928 MHz version is primarily intended for use in Australia and New Zealand, and only the GTA-T1 Leader unit is available in this version. For the GTA-T1 and GTA-R units, the 915 MHz version is used. Please note that the 863 MHz and 915/928 MHz versions are not compatible with each other.
CHARGING OPTIONS There are 4 options for charging your GoTalk transceivers. Two trays are available: the GTA-CT6 with 6 slots and the GTA-CT12 with 12 slots. These trays are designed to sit on a counter or table, providing fast and easy access to your system. For smaller systems, there is the GTA-CU4, a 4-port USB wall charger that allows you to charge up to 4 units simultaneously. The final option is the GTACC24, a 24-slot charging case that charges, stores, and transports your system.
ACCESSORIES We offer a variety of headsets, headphones, and ear speakers. Additionally, a pouch is available for carrying the transceiver on your body, offering an alternative to the supplied lanyard.
LIST OF ACCESSORIES AND DESCRIPTION GTA-HP1 Standard universal headphones with 3.5 mm plug (TRS) EM-101 Standard universal earspeaker with 3.5 mm plug (TRS) GTA-HS1 Mono earspeaker boom microphone with 3.5 mm plug (TRRS) GTA-HS2 Mono headset with noise cancelling boom microphone, 3.5 mm plug (TRRS) GTA-HS3 Stereo headset with noise cancelling boom microphone, 3.5 mm plug (TRRS) GTA-HS4 Protective headset with noise-canceling microphone, 3.5 mm plug (TRRS) Coming soon GTA-HS5 Protective Headset with mounting bracket for hard hats, 3.5 mm plug (TRRS) Coming soon GTA-AP Armpouch to wear a transceiver on your arm. GTA-BAT Replacement battery for GoTalk Transceivers. GTA-YS Y-split cable that enables use of a neck loop and microphone together.
Note: The GoTalk Transceivers are compatible with standard smartphone headsets.
GoTalk Definitions
GOTALK SYSTEM A general description of an entire system consisting of any number of transceivers.
PAIRING The process of establishing a link between the Leader and any number of Participant or Sub-Leader units, or a combination of both, in a GoTalk system. This process is initiated by the Leader unit.
LEADER, SUB-LEADER AND PARTICIPANT These terms describe the functions of the three different types of transceivers in a GoTalk system. A group must have one Leader unit. The GoTalk system may include any number of Participant or Sub-Leader units, or a combination of both, as needed. Please note that a GoTalk system may only contain one Leader unit.
GOTALK SECURITY The GoTalk system’s data transmission is protected by proprietary encoding. The encoding key is generated by the Leader unit and passed to other units during the pairing process. The sharing of the encoding key can be revoked by disbanding and unpairing the group from the Leader unit. This encoding ensures secure transmission within each group. For detailed instructions on pairing, see page 9.
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GoTalk Unit Overview
GTA-T1 LEADER / GTA-T2 SUB-LEADER The GTA-T1 and GTA-T2 appear identical in layout. The GTA-T1 Leader unit is red, while the GTA-T2 is black. This color difference is the primary way to distinguish between them. Additionally, the display indicates their roles: “L” for Leader and “S” for Sub-Leader.
Both the GTA-T1 and GTA-T2 have dedicated talk paths, meaning they can always broadcast.
Note: When the Talkback Function is toggled off by the Leader unit, the Participant talk path becomes available to the Sub-Leaders, allowing up to two Sub-Leaders to transmit simultaneously.
Note: Remove the protective plastic film from the display.

3.5 mm headset jack (TRRS)
Status LED Function button
Power button

Antenna Display
+ Volume Up Volume Down
Talk button USB-C charging port

GOTALK GTA-R PARTICIPANT The GTA-R is the Participant unit, easily distinguishable with its bright yellow color and short antenna. The third talk path is shared between all Participant units.
Note: Remove the protective plastic film from the display.

3.5 mm headset jack (TRRS)
Status LED
Function button
Power button

Antenna
Display
+ Volume Up Volume Down
Talk button USB-C charging port

GoTalk Functionality
COMPATIBLE HEADSETS The headset jacks on the GoTalk GTA-T1, GTA-T2, and GTA-R are standard 3.5 mm CTIA-compatible TRRS jacks. These units are hearing aid compatible (HAC), allowing a neck loop to be connected and function properly with the unit, ensuring accessibility for hearing aid users equipped with a T-coil. To maintain two-way communication using a neck loop, a GTA-YS Y-split cable is required to separate the microphone and headphone functions of the TRRS jack. Any standard CTIA-compatible smartphone headset may be used with the unit.
CHANGING SETTINGS
+ To enter the settings, simultaneously press and hold the Function button and Volume Up on either the GTA-T1 Leader or
GTA-T2 Sub-Leader unit for 3 seconds. The selected microphone gain option will blink rapidly. While in settings, the LED indicator and the indicator light of the Talk Button will turn off.
GTA-T1 LEADER UNIT Microphone Gain
+ Enter settings as described above. Using the Volume Up and Volume Down buttons , select between Standard (STD) and High (HI).
To exit settings, press the Function button twice. The LED Indicator will flash blue, and the unit will resume normal operations.
Toggle Talkback On and Off Enter settings as described above. Press the Function button to switch from the mic gain setting to the Talkback setting. Use the
+ Volume Up and Volume Down buttons to select ON or OFF. To exit settings, press the Function button once. The indicator
LED will flash blue, and the unit will resume normal operations.
Note: When entering settings on the GTA-T1 Leader unit, the system will briefly halt operations while the settings are being changed. Once a selection has been made and the settings menu is exited, normal operation will resume.
Note: When the Talkback Function is toggled off by the Leader unit, the Participant talk path becomes available to the SubLeaders, allowing up to two Sub-Leaders to transmit simultaneously.
Note: Only Participants are affected by toggling Talkback on or off. The Leader and Sub-Leaders can always transmit if a talk path is free and available.
GTA-T2 SUB-LEADER UNIT Microphone Gain
+ Enter settings as described above. Using the Volume Up and Volume Down buttons , select between Standard (STD) and High
(HI). To exit settings, press Function once. The LED Indicator will light up, and the unit will resume normal operations.
SIDETONE The GTA-T1 Leader unit, GTA-T2 Sub-Leader unit and GTA-R Participant unit produces a sidetone. The sidetone is designed to aide the user to hear their own voice when speaking. The sidetone is a fixed value equal to 20% of the selected volume. The sidetone cannot be turned off.
BUSY TONE Participants or Sub-Leaders will be notified that no talk paths are available by a ringing sound played in their headset when they press the Talk Button. Additionally, this is indicated by the backlight of the Talk Button turning off.
TALK BUTTON The operation of the Talk Button on the GTA-T1 Leader unit and GTA-T2 Sub-Leader unit differs from that of the GTA-R Participant unit. The GoTalk system provides three talk paths: one dedicated to the GTA-T1 Leader unit, one shared between all GTA-T2 SubLeaders, and one shared between all GTA-R Participants.
On the GTA-T1 and GTA-T2 units, the Talk Button functions as a press-to-talk button, essentially muting and unmuting the unit. The user only needs to press the button to toggle between these options.
On the GTA-R, the Talk Button functions as a push-to-talk button, meaning the user must hold the button down while speaking. Releasing the button mutes the unit and frees up the shared talk path for other Participants to use.
7

Talk Button back light indication

Blue Transmitting The unit is actively broadcasting

Red Muted/Transmit available
The unit is muted but a talk path is available for use

Off Not available/Talk path occupied
Either the Talkback Function is toggled off, or the talk path is currently being
used by another unit

Note: The GTA-T1 Leader unit can always transmit, and the Sub-Leaders share a dedicated talk path among themselves. Similarly, all GTA-R Participants share a dedicated talk path. GTA-R units will be muted if the Talkback Function is off or if another GTA-R unit is transmitting.
BATTERY INDICATOR The battery indicator shows how much power is remaining in the battery.

Green 70-100% Green 40-70% Yellow 10-40% Red <10%

Note: If the battery indicator status LED is red, the device needs charging. Place the device in the GTA-CT6 or GTA-CT12 Charging Tray, or in the GTA-CC24 Charging Case to charge. You may also charge the device using the GTA-CU4 Wall Charger.
The GoTalk transceivers require 5V, 1A, and are rated at 650 mA. The units need 4 hours to fully charge from a discharged state. Typical battery life is 15-20 hours, but it may vary depending on environmental factors and heavy use. Please consult the Battery Safety section at the beginning of this user guide for instructions on how to care for your battery.
Lithium-ion batteries typically last for 1000 cycles or 3 years before they begin to degrade. To maintain battery life, service and replace the battery of your unit after this period.
You may also charge your device on-the-go using a power bank.

STATUS INDICATOR The status indicator tells you any number of things.

Status while charging
Blue Red

GTA-T1 Leader Fully Charged Charging

GTA-T2 Sub-Leader Fully Charged Charging

GTA-R Participant Fully Charged Charging

Status while operating
Steady Blue Flashing Blue Blinking Blue
Off

GTA-T1 Leader

GTA-T2 Sub-Leader

GTA-R Participant

Device is on

Device is on and paired in a group

N/A

Device is on but not paired in a group

Pairing mode or searching for Device is on but out of range of the Leader free channel

Device is off or in settings mode

Device is off

AUTO POWER OFF The GoTalk system has an auto power off function. The units will turn themselves off if no transmission is made within 30 minutes or after 5 minutes if either a GTA-T2 Sub-Leader or GTA-R Participant unit is out of range of the group Leader. Auto Power Off Group Upon powering off the GTA-T1 Leader unit, all other paired and turned-on units will be powered down. If turned off accidentally, all units must be manually turned on. The GoTalk system will maintain the pairing. Powering On and Off the Device Power on your device by pressing Power for 2 seconds. Turn off your device by pressing Power for 3 seconds. CREATING A GROUP AND PAIRING Creating a group and pairing a Sub-Leader and Participants is easy. Remember that in order for a GoTalk system to function, a GTA-T1 Leader unit must be used. Follow these steps to create a group and pair any number of devices: 1. Connect the headsets to their respective devices before proceeding. 2. Power on the Leader unit by pressing and holding Power for 2 seconds. 3. With the Leader unit powered on, enter pairing mode by pressing Function for 3 seconds. The status LED will start flashing
blue, indicating the Leader is in pairing mode. 4. In close proximity to the Leader unit, power on 1 Sub-Leader unit (optional) and any number of Participant units. The paired
unit’s status LED will flash and then turn solid when the pairing is completed. 5. Press the Leader unit’s Function button to exit pairing mode. 6. To add more units mid-tour, simply repeat steps 2-4. Note: Only the Leader unit may add units to the group. The Sub-Leader does not have that functionality. UNPAIR DEVICE To unpair a GTA-T2 or GTA-R from a group:
+ With the unit powered off press and hold Volume Up and Volume Down simultaneously.
Then press Power for 3 seconds. The unit will start, and the status LED will start flashing, indicating that the unit is not connected. RELEASE AND DISBAND GROUP To unpair all devices from a GTA-T1: With the GTA-T1 powered on press and hold Function and Power for 3 seconds. This will unpair and power down any device currently paired and turned on. Any devices turned off while this procedure is carried out will not be affected. CHANGING CHANNELS The GoTalk system has automatic channel selection feature. If you experience interference, you can initiate an automatic channel search and change channels:
On the Leader unit, press and hold Function and Volume Down for 3 seconds. The Leader unit will scan available channels and
select an unoccupied and interference free channel. The group will automatically be moved to that channel. Note: When this function is activated, the GoTalk system will temporarily be deactivated. The channel search and change are completed once the status LED stops flashing, at which point you may continue.
HAC ENABLED The GoTalk units are HAC (Hearing Aid Compatible) enabled and may be used by hearing aid users with a built-in telecoil together with a NL-100 Neckloop. Connect the neckloop to your unit and set your hearing aid to ‘T’ position.
9

CHANNELS, FREQUENCY AND RANGE
The transmission range of the GoTalk system varies depending on the version you have and/or the frequency you are broadcasting on. The variation is due to the transmission power allowed for different frequency ranges and regions.

Version GoTalk 863
GoTalk 915 GoTalk 928

Available channels Simultaneous groups Transmission power

823-832 MHz – 20 mW 863-865 MHz – 10 mW

902-928 MHz – 25 mW

915-928 MHz – 25 mW

Transmission range 823-832 MHz – Up to 100 m 863-865 MHz – Up to 70 m 902-928 MHz – Up to 90 m
915-928 MHz – Up to 90 m

863 version, frequency specification

Channel Frequency Channel

863.500 5

864.500 6

823.125 7

831.875 8

Frequency Channel 827.375 9 828.875 10 825.125 11 829.375 12

Frequency Channel 831.125 13 827.875 14 826.125 15 830.125 16

Frequency Channel 823.625 17 830.625 18 824.125 19 829.875 20

Frequency 825.625 826.625 828.375 831.625

915 version, frequency specification

Channel Frequency Channel

902.50 7

914.50 8

927.50 9

909.50 10

921.50 11

905.50 12

Frequency Channel 925.50 13 912.50 14 903.50 15 907.50 16 915.50 17 919.50 18

Frequency Channel 924.50 19 910.50 20 926.50 21 904.50 22 917.50 23 911.50 24

Frequency Channel 922.50 25 906.50 26 920.50 908.50 923.50 913.50

Frequency 916.50 918.50

928 version, frequency specification

Channel Frequency Channel

927.50 9

921.50 11

Frequency Channel

925.50 13

915.50 17

919.50 18

Frequency Channel

924.50 19

926.50 21

917.50 23

Frequency Channel

922.50 25

920.50

923.50

Frequency 916.50 918.50

Note: GoTalk uses automatic channel selection to choose an interference-free channel. For more information on changing channels manually, please see the section Changing Channels.
Note: The 928 version of the GTA-T1 Leader unit is compatible with the 915 version GTA-T2 Sub-Leader and GTA-R Participant units. The Leader unit is responsible for channel selection, and the 928 version operates within the frequency range of 915-928 MHz, which is intended for use in Australia and New Zealand.

Applications
The GoTour system can be used in a variety of applications. Some applications may require special accessories to ensure a great experience. The following are common applications for the GoTalk system: GUIDED TOURS Guided tours are one of the simplest applications for the GoTalk system, offering clear communication between the guide and participants. The system is versatile and can be used across a range of environments: REGULAR GUIDED TOURS In quieter environments such as museums, city tours, cultural excursions, or archaeological sites, where ambient noise is minimal, the GoTalk system ensures that participants can clearly hear the guide’s narration. This is especially important when the guide is sharing detailed information or stories while moving between points of interest. For these types of tours, the GoTalk system works seamlessly with lightweight headsets, allowing participants to stay engaged without the distraction of external noise. The GoTour system, designed specifically for quieter environments, is another ideal option for these types of tours, providing an excellent balance of sound quality and ease of use. FACTORY AND BUILDING SITE TOURS In noisier environments, such as factories or construction sites, where heavy machinery or construction noise can interfere with communication, the GoTalk system is equally effective with the right accessories. Safety and clarity are critical in these settings, and using noise-canceling headsets ensures participants can hear important instructions clearly, even in loud environments. For guided tours, you will need 1 Leader unit and any number of Participant and Sub-Leader units, all paired with a headset that fits your needs: Headset 1: Ideal for quiet environments such as museums or galleries. Headsets 2 and 3: Suitable for quiet to moderately noisy environments, offering more versatility for outdoor tours or spaces with some ambient noise. Headsets 4 or 5: Recommended for noisy environments, such as factories or construction sites, or when protective ear coverings are required. ASSISTIVE LISTENING The GoTalk system is portable and hearing aid compatible (HAC). It works with neck loops for those with T-Coil-equipped hearing aids, or with headphones for others with hearing loss. For two-way communication, a GTA-YS Y-split cable and microphone are required. This system ensures clear hearing for everyone in need of assistive listening support.
INTERPRETATION The GoTalk system is highly effective for various interpretation applications: Simultaneous Interpretation Real-time translation where the interpreter speaks while the original speaker is talking. This method is commonly used in conferences and large meetings. Requires 1 GTA-T1 and as many GTA-R units as needed. Consecutive Interpretation The interpreter listens to sections of the speech and then translates, used in business or legal meetings. Requires 1 GTA-T1 and as many GTA-R units as needed. Relay Interpretation Used when an interpreter translates from one language into another via an intermediary language. This setup requires multiple GTA-T1 units and as many GTA-R units as needed. Each interpreter must have a GTA-R to listen to the language being translated and a GTA-T1 to transmit to their own group.
11

Sight Interpretation Describing events or visuals for those with visual impairments, often used in theaters, cinemas, or galleries. The GoTalk system is most suitable for simultaneous, relay, and sight interpretation. Example: The original language is English, and it is interpreted into German, Spanish, and French. The German and Spanish interpreters understand and can interpret from English, but the French interpreter does not. However, the French interpreter is fluent in German and can interpret from German to French. This setup requires 4 GTA-T1 units, one for each language, and as many GTA-R units as needed. Additionally, the interpreters need a GTA-R paired with the GTA-T1 used by the language they interpret from. In the above example, the Spanish and German interpreters have a GTA-R paired with the English presenter’s GTA-T1. The French interpreter has a GTA-R paired with the German interpreter’s GTA-T1. COLLABORATION AND MEETINGS The GoTalk system enhances collaboration by acting as an intercom system in meetings. It allows seamless, real-time communication between participants, making it easy to exchange ideas and feedback without interrupting the flow of conversation. SPORTS EVENTS In sports, such as equestrian activities, skiing, and extreme sports, where coaches and athletes are often separated by large distances, the GoTalk system facilitates mid-practice communication. It can also be used between head coaches and assistant coaches to coordinate during events. EVENTS, PRODUCTION AND WIRELESS INTERCOM During events, theater productions, or similar settings, the GoTalk system functions as a small, efficient intercom, allowing team members to communicate effectively behind the scenes without disrupting the event. For smaller setups, such as film crews or retail shops, the GoTalk system can serve as a rudimentary wireless intercom using a GTA-T1 and several GTA-T2 units, ensuring seamless communication between team members. LEISURE The GoTalk system can enhance communication in leisure activities such as family holidays or motorcycle rides, where maintaining clear communication in a closed group is essential. It provides an easy way to stay connected, whether traveling or engaging in outdoor activities. SILENT MEETINGS In environments where multiple speakers are close to each other, such as trade shows or political rallies, the GoTalk system can be used without a PA system. This ensures clear communication even in noisy surroundings, allowing presenters to avoid interference and ensure their message is heard. EDUCATION In educational settings, the GoTalk system can be beneficial in several ways. Schools may use it as a tour guide system for field trips, while it can also aid students with ADHD, ADD, or Autism by helping them focus in group settings. The system allows two-way communication, enabling teachers to provide focused instruction and students to ask questions without distractions.
12

GoTalk Products and Accessories

TRANSCEIVERS

P/N:

Product Name

Description

575100-XXX

GoTalk GTA-T1

Leader Transceiver, XXX*

575110-XXX

GoTalk GTA-T2

Sub-Leader Transceiver, XXX*

575200-XXX

GoTalk GTA-R

Participant Transceiver, XXX*

Note: *XXX replace with version, either 863 MHz, 915 MHz or 928 MHz (GTA-T1 only). The 863 MHz and 915 MHz versions are not interoperable. The GTA-T1 928 MHz uses the 915 MHZ GTA-T2 and GTA-R.

CHARGING OPTIONS

P/N:

Product Name

Description

582100

GTA-CU4

4-port USB wall charger, EU/UK/US/AUS

575006

GTA-CT6

6-slot charging tray, EU/UK/US/AUS

575012

GTA-CT12

12-slot charging tray, EU/UK/US/AUS

575024-XX

GTA-CC24

24-slot charging case, XX*

Note: *XX replace with region, EU (Europe), UK (United Kingdom), US (United States), AUS (Australia) to ensure you get the correct power cord for your region.

HEADSETS AND HEADPHONES

P/N:

Product Name

575190

GTA-HP1

575180

GTA-HS1

575181

GTA-HS2

575182

GTA-HS3

575183

GTA-HS4

575184

GTA-HS5

283103

NL-100

Note: *NC means noise-cancelling.

Description Headphones 1, universal stereo headphones (TRS) Headset 1, mono earpiece with boom mic (TRRS) Headset 2, mono headset with NC* boom mic (TRRS) Headset 3, stereo headset with NC* boom mic (TRRS) Headset 4, protective headset with NC* boom mic (TRRS) Headset 5 protective headset for helmets, with NC* mic (TRRS) Neckloop for HAC-enabled transceivers (TRS)

ACCESSORIES
P/N: 575810 550037 575195 575196 575199 575830 599150 599100

Product Name GTA-AP N-32 GTA-HS2EC GTA-HS2WS GTA-YS GTA-BAT GOPSU20W GOPSU60W2

Description Armpouch, secure your transceiver on your arm Replacement lanyard for transceivers Replacement ear cushions for HS2 and HS3 Replacement windscreen for HS2 and HS3 Y-split cable that enables use of a neck loop and microphone together Replacement battery for GTA-T1, GTA-T2 and GTA-R Replacement PSU for GTA-CT6 and GTA-CT12 Replacement PSU for GTA-CC24

Specifications

GOTALK GTA-T1 / GTA-T2 / GTA-R

AUDIO

Headphone Output:

30 mW @ 32 impedance

Microphone Input:

Electret type, external bias 1.5-2 V

Bias voltage <3 V, current <0.5 mA

Sensitivity -43 ±3 dB

Sidetone:

20% of selected volume

Frequency Response:

300-3400 Hz

Signal to Noise Ratio:

>60 dB

Hearing Aid Compatibility (HAC): Yes, made to work with neckloops

RADIO Operating Frequency: Average Transmission Power: Typical Range, Line of Sight: Available Channels: Max. Simultaneous Groups: Modulation: Type of Transmission: Security:
POWER AND BATTERY Battery Type: Typical Operating Time: Typical Charging Time: Power Saving:
Charging Power:
PHYSICAL AND ENVIRONMENT Dimensions w/o Belt Clip:
Dimensions w/ Belt Clip:
Shipping Dimensions: Net Weight: Shipping Weight: Enclosure Material: Color: Indicators: Connections: Operating Temperature: Storage Temperature: Relative Humidity: Compliance:

863 VERSION

915 VERSION

823-832+863-865 MHz

902-928 MHz

10-20 mW (freq. dependent)

25 mW

Up to 70 or 100 m (freq. dependent) Up to 90 m

20 channels

26 channels

12 groups

8 groups

4GFSK

Digital UHF

Proprietary encoding

928 VERSION 915-928 MHz 25 mW Up to 90 m 13 channels 5 groups 4GFSK Digital UHF Proprietary encoding

Lithium-ion, rechargeable, non-proprietary, replaceable, 1300 mAh 15-20 hours 4 hours Auto power off after 30 min Auto power off when powering off leader unit Auto power off when placed in charging tray after 30 min 5 V, >650 mA

GTA-T1/GTA-T2 43 x 175 x 20 mm (1.69 x 6.89 x 0.79 in.) GTA-R 43 x 105 x 20 mm (1.69 x 4.13 x 0.79 in.) GTA-T1/GTA-T2 43 x 175 x 28 mm (1.69 x 6.89 x 1.10 in.) GTA-R 43 x 105 x 28 mm (1.69 x 4.13 x 1.10 in.) 84 x 146 x 45 mm (3.31 x 5.75 x 1.77 in.) 65 g (2.29 oz.) 138 g (4.87 oz.) ABS plastic GTA-T1 Red, GTA-T2 Black, GTA-R Yellow Status LED, display icons, LED backlit talk button 3.5 mm headset jack (TRRS) (CTIA), USB-C for charging -10 to 50 °C (14 to 122 °F) -20 to 60 °C (-4 to 140 °F) 0 to 80 %, non-condensing
CE, UKCA, FCC, RoHS

GOTALK GTA-CU4 PHYSICAL Color: Cable Color: Dimensions:
Net Weight:
Shipping Weight: Unit Capacity:
POWER Power Supply Input: Power Supply Output: Power Supply Connector: Power Cord:
COMPLIANCE Standards:

Black Black 55 x 77 x 29 mm (2.17 x 3.03 x 1.14 in.) w/ plug, EU 106 x 77 x 40 mm (4.17 x 3.03 x 1.57 in.), UK 87 x 77 x 79 mm (3.43 x 3.03 x 3.11 in.), US & AUS 85 x 77 x 40 mm (3.35 x 3.03 x 1.57 in.) 67 g (2.36 oz.) w/ plug, EU 86 g (3.03 oz.), UK 85 g (3.00 oz.), US & AUS 80 g (2.82 oz.) 236 g (8.32 oz.) 4
100-240 VAC, 50-60 Hz 5 VDC, 4 x 1.0 A, 20 W IEC C7 2-pole connector Input: No cord supplied. Plugs for regions EU, UK, US and AUS supplied. Output: 4 USB-A to USB-C 1.0 m (39.37 in.) supplied.
RoHS, CE, UKCA, FCC

GOTALK GTA-CT6 / GTA-CT12 / GTA-CC24

PHYSICAL

Case Color: Tray Color: Dimensions:
Shipping Dimensions:
Net Weight: Shipping Weight: Unit Capacity:

Aluminium/grey (CC24)

Black (CT6/CT12/CC24)

CT6: 44 x 170 x 85 mm (1.73 x 6.69 x 3.35 in.)

CT6: 53 x 115 x 218 mm (2.09 x 4.53 x 8.58 in.)

CC24: 208 x 456 x 343 mm (8.19 x 17.95 x 13.50 in.)

CT6: 236 x 208 x 50 mm (9.29 x 8.19 x 1.97 in.)

CT12: 271 x 247 x 56 mm (10.67 x 9.72 x 2.2 in.)

CC24: 470 x 364 x 227 mm (18.5 x 14.33 x 8.94 in.)

CT6: 203 g (0.45 lbs) CT12: 306 g (0.67 lbs) CC24: 4.00 kg (8.82 lbs)

CT6: 579 g (1.28 lbs) CT12: 736 g (1.62 lbs) CC24: 4.40 kg (9.70 lbs)

CT6: 6

CT12: 12

CC24: 24

POWER Power Supply Input: Power Supply Output: Power Supply Connector:
Power Cord:

100-240 VAC, 50-60 Hz (CT6/CT12/CC24) 5 VDC, 4.0 A, 20 W (CT6/CT12) / 12 VDC, 5.0 A, 60 W (CC24) CT6/CT12: 5.5 mm (0.22 in.) OD x 2.0 mm (0.08 in.) ID, barrel type CC24: 5.5 mm (0.22 in.) OD x 2.5 mm (0.10 in.) ID, barrel type CT6/CT12: 100 cm (39.37 in.) output cord CC24: 175 cm (68.9 in.) input cord / 150 cm (59.05 in.) output cord

COMPLIANCE Standards:

RoHS, CE, UKCA, FCC

GOTALK GTA-HS1 PHYSICAL Color: Cord Length: Weight: Shipping Weight:
CONNECTIONS Connector:
AUDIO MICROPHONE Type: Polar Pattern: Impedance: Sensitivity: Bandwidth: Bias:
AUDIO DRIVER Driver Size and Type: Impedance: Bandwidth:
COMPLIANCE Standards:

Black 1 m (39.37 in.) 22 g (0.78 oz.) 26 g (0.92 oz.)
Male 3.5 mm (TRRS), CTIA compliant
Electret condenser Omni-directional 900 – 2.2 kOhms typical -43 ±3 dBV/Pa @ 1 kHz 100 Hz – 10 kHz 1.8 – 10 VDC
ø 23 mm, dynamic 32 ohm ±15% @ 1 kHz 100 Hz – 20 kHz
RoHS, CE, UKCA

GOTALK GTA-HP1 / GTA-HS2 / GTA-HS3

PHYSICAL

Color:

Black

Cord Length:

1 m (39.37 in.)

Weight:

HP1 62.5 g (2.20 oz.)

HS2 46 g (1.62 oz.)

HS3 68.5 g (2.41 oz.)

Shipping Weight:

HP1 70.5 g (2.48 oz.)

HS2 54 g (1.90 oz.)

HS3 76.5 g (2.70 oz.)

CONNECTIONS Connector:

HP1 male 3.5 mm (TRS) standard headphone HS2/HS3 male 3.5 mm (TRRS) CTIA compliant

AUDIO MICROPHONE (HS2/HS3)

Type:

Electret condenser

Polar Pattern:

Bi-directional, noise-cancelling

Impedance:

900 – 2.2 kOhms typical

Sensitivity:

-45 ± 3 dBV/Pa @ 1 kHz

Bandwidth:

100 Hz – 10 kHz

Bias:

1.8 – 10 VDC

AUDIO DRIVER (HP1/HS2/HS3) Driver Size and Type: Headphone Impedance: Headphone Bandwidth:

ø 30 mm, dynamic 32 ohms ±20% @ 1 kHz 20 Hz – 20 kHz

COMPLIANCE Standards:

RoHS, CE, UKCA

GOTALK GTA-HS4 / GTA-HS5 PHYSICAL
Color: Cord Length: Weight: Shipping Weight: Shipping Dimensions:

GTA-HS4 Black 1 m (39.37 in.) 431 g (15.20 oz.) 620 g (21.87 oz.) 195 x 130 x 220 mm (7.68 x 5.12 x 8.66 in.)

GTA-HS5 Black 1 m (39.37 in.) 355 g (12.52 oz.) 529 g (18.66 oz.) 140 x 125 x 250 mm (5.51 x 4.92 x 9.84 in.)

CONNECTIONS Connector:

Male 3.5 mm (TRRS) CTIA compliant

AUDIO MICROPHONE Type: Polar Pattern: Impedance: Sensitivity: Bandwidth: Bias:

Electret condenser Unidirectional, noise cancelling 1.5 kohms ± 30% @ 1 kHz -56 ± 3 dBV/Pa @ 1 kHz 250 Hz – 16 kHz 1 – 10 VDC

Electret condenser Unidirectional, noise cancelling 680 ohms ± 30% @ 1 kHz -47 ± 3 dBV/Pa @ 1 kHz 100 Hz – 16 kHz 1 – 10 VDC

AUDIO DRIVER Driver Size and Type: Impedance: Frequency Response: Noise Reduction Rating (NRR):

Ø 40 mm, dynamic 32 omhs ± 15% @ 1 kHz 250 Hz – 4 kHz 23 dB

Ø 50 mm, dynamic 32 ohms ± 15% @ 1 kHz 210 Hz – 5 kHz 23 dB

COMPLIANCE Standards:

RoHS, CE

Product maintenance
CARE, CLEANING, AND DISINFECTING Proper care, cleaning, and disinfecting of your GoTalk system ensure its longevity and optimal performance. Follow these guidelines to maintain your devices: GENERAL CLEANING Exterior Cleaning: Wipe the exterior of your GoTalk devices with a soft, dry cloth. For more stubborn dirt, use a slightly damp cloth. Avoid using harsh chemicals, solvents, or abrasive materials, as these can damage the device’s surface. Connector Cleaning: Ensure that the headset jacks and charging ports are free of dust and debris. Use a dry, soft-bristle brush or compressed air to gently clean these areas. DISINFECTING Regular Disinfection: Disinfect your GoTalk devices regularly, especially if they are shared among multiple users. Use disinfectant wipes or a cloth dampened with isopropyl alcohol (70% concentration). Ensure the device is powered off before cleaning. Headsets and Accessories: Disinfect ear cushions, microphone windscreens, neckloops, and headphones with disinfectant wipes or a cloth dampened with isopropyl alcohol. Allow them to air dry completely before use. CHARGING TRAYS AND CASES Cleaning and Disinfecting: Regularly clean the charging trays (GTA-CT6 and GTA-CT12) and charging cases (GTA-CC24) by wiping them with a soft, damp cloth. Disinfect the interior surfaces with disinfectant wipes or a cloth dampened with isopropyl alcohol. Ensure that the charging ports are free of dust and debris by using a dry, soft-bristle brush or compressed air. Make sure the trays or cases are unplugged during cleaning and allow them to dry completely before use. STORAGE Proper Storage: Store your GoTalk devices in a cool, dry place when not in use. Avoid exposure to direct sunlight, extreme temperatures, and high humidity. Protective Cases: Use the provided charging cases or pouches to store and protect your devices. This helps prevent dust accumulation and physical damage. HANDLING Gentle Handling: Handle your GoTalk devices with care. Avoid dropping them or subjecting them to physical shock, which can damage internal components. Avoid Liquid Exposure: Keep your devices away from water and other liquids. If a device gets wet, dry it immediately with a soft cloth and allow it to air dry completely before use. BATTERY CARE Regular Charging: Keep your devices charged regularly. Do not let the battery discharge completely before recharging. Follow the recommended charging guidelines in the user manual. Battery Inspection: Periodically inspect the battery for signs of swelling or damage. If you notice any issues, contact a technician for a battery replacement. By following these care, cleaning, and disinfecting guidelines, you can ensure that your GoTalk system remains in excellent condition, providing reliable performance and extending the lifespan of your devices.
18

Troubleshooting
THE UNIT HAS NO POWER Make sure the battery is fully charged. Press and hold the power button for 2 seconds to turn it on. If this does not work, allow a technician to examine the battery and, if necessary, replace it. THERE’S NO AUDIO Check that the unit is in the same group as the Leader, Sub-Leader, or Participants you wish to communicate with. Ensure the volume is turned up so that at least one LED on the volume display is lit. Check that the headset is properly connected and plugged in all the way, and inspect the headset for any damage. I CAN’T RECEIVE A SIGNAL Ensure that the Leader, Sub-Leader, and Participants are paired and in the same group. THE AUDIO IS DISTORTED Compare with others in the group to ensure you are in the same group. Move closer to the Leader or ask the Leader to change the broadcast channel. THE BATTERY ISN’T CHARGING If using a USB charger, try another cable or try to charge another device. If placed in a charging tray, make sure the power cable is connected to the tray. Try other slots and other devices. If the problem persists, allow a technician to examine the battery and, if necessary, replace it. I CANNOT TRANSMIT Check to make sure that the Talkback Function has been toggled on from the Leader unit. Make sure that there is an available talkpath. This is indicated by the Talk Button being red. If the Talk Button is not lit up chek and make sure that no other unit is currently transmitting.
Compliance information
WARRANTY Univox warrants that the GTA-T1, GTA-T2 and GTA-R and charging trays are free from defects in materials and workmanship under normal use and conditions for 5 years from the original date of purchase. Accessories, such as headsets, and consumables, such as batteries and lanyards, are subject to a 1-year limited warranty. Please note that normal wear and tear is not covered under warranty, as it results from regular use and does not fall within warranty terms for material defects or workmanship issues. For current warranty conditions, please visit our website at www.univox.eu/support/contact/general-sales-conditions/. IMPORTANT INFORMATION Read the following information before using your GoTalk system. Product labeling information, such as the serial number, country of origin, and additional regulatory information, can be found on the back of the units. To view the product label in its entirety, lift up the belt clip. These devices have passed all tests regarding RF exposure limits and comply with the RED directive as well as FCC regulations for body-worn portable devices. These devices may be used and operated safely handheld, on your person using a lanyard, or fastened to your clothes with the belt clip.
19

Recycling
Remember to dispose of your equipment properly at the end of its life, following your local laws and regulations regarding recycling. PRODUCT RECYCLING
Please do NOT dispose of your Univox products in household trash or otherwise. Univox products can be fully recycled and should be brought to an electronics recycling center. Before recycling the product, batteries should be removed. The packaging material should be sorted as plastic and cardboard. BATTERY RECYCLING INFORMATION
Please do NOT dispose of batteries in household trash or otherwise. Please take the batteries to a retailer or dispose of them in a designated recycling bin for batteries.
Contact Information
GoTour is a sub-brand of Univox, which in turn is a registered brand owned by the legal entity of Bo Edin AB. Univox, Förrådsvägen 2B, S-181 41 LIDINGÖ, SWEDEN Phone: +46 8-767 18 18 Email: info@edin.se

2U0nivox Stockby Hantverksby 3 SE-181 75 Lidingö, Sweden

Visiting address Förrådsvägen 28 SE-181 41 Lidingö, Sweden

Phone +46-8-767 18 18 Email info@univox.eu Web www.univox.eu

Documents / Resources

univox GTA-T1 Go Talk Two Way Communication Radio System [pdf] User Manual
GTA-T1, GTA-T2, GTA-R, GTA-T1 Go Talk Two Way Communication Radio System, GTA-T1, Go Talk Two Way Communication Radio System, Way Communication Radio System, Communication Radio System, Radio System

References

User Manual

GTA-T1 Go Talk Two Way Communication Radio System

Specifications

Product Information

Product Usage Instructions

Components

Functionality

Pairing and Group Setup

Maintenance

Troubleshooting

FAQ

Q: How do I pair devices in the GoTalk system?

Q: Can I use any headset with the GoTalk system?

Documents / Resources

References

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