WAVENET NESO24-23 NESO 2.4 Digital Audio Transmission System User Manual

WAVENET NESO24-23 NESO 2.4 Digital Audio Transmission System

Product Information

Specifications

• Product Name: NESO 2.4 Digital Audio Transmission System
• Usage: Monitoring applications in TV productions, TV sets, theatre, stage management, etc.
• Frequency: 2.4GHz ISM band
• Components: Radio frequency base station, in-the-canal and behind-the-ear hearing terminals
• Factory configurable system

Product Usage Instructions

Description and Pictures
NESO 2.4 is a digital audio transmission system designed for professional monitoring applications. The system includes a radio frequency base station operating on the 2.4GHz ISM band and a range of in-the-canal and behind-the- ear hearing terminals for high-quality audio transmission and reception in various settings.

Front Panel Features:

1. Status LED indicators: red for active carrier, yellow for audio presence, green for power on
2. Up/down output volume level controls
3. Pairing button

Rear Panel Features (EU):

1. Feature 1
2. Feature 2
3. Feature 3
4. Feature 4

Start Working with NESO 2.4

Start-Up
Before powering on NESO 2.4, ensure proper transmitter location considering obstacles like human bodies, walls, and metallic elements. Connect the power supply and antenna (vertical position) to the designated connectors on the transmitter for initialization.

Warning: Do not alter or substitute the supplied antenna as it may impact system efficiency and compliance with standards.

Audio Connection
Connect a line-level (+4 dB) audio source to the XLR3 H connector on the transmitter. Ensure correct pin connections based on balanced or unbalanced configuration.

Caution: Adjust the audio output level within factory settings to prevent hearing damage.

Pairing Transmitter and Hearing Terminals
The pairing process involves identifying and bonding the transmitter with associated hearing terminals. Follow these steps:

1. Power on the NESO 2.4 transmitter without audio input.
2. Proceed with the pairing process ensuring no audio supply during pairing.

DESCRIPTION AND PICTURES

NESO 2.4 is a DIGITAL AUDIO TRANSMISSION SYSTEM for monitoring applications to be used in TV productions, TV sets, theatre, stage management, technicians, etc. NESO 2.4 system is made of a radio frequency base station that works on the 2.4GHz ISM band, and a complete range of in-the-canal as well as behind- the-ear hearing terminals, all of them focused to high-quality audio transmission/reception for professional applications. The system is factory configurable.

FRONT PANEL

1. Status LED: red active carrier; yellow audio presence (peak meter); green on.
2. Up/down output volume level.
3. Pairing button.

EU – REAR PANEL

1. On/off switch
2. Type N antenna connector
3. XLR4 M: Power input – GND 1; + 4
4. XLR3 H: Audio IN – Line +4 dB

USA & CANADA – REAR PANEL 

1. On/off switch
2. Type RP SMA antenna connector
3. XLR4 M : Power input – GND 1; + 4
4. XLR3 H: Audio IN – Line +4 dB

START WORKING WITH NESO 2.4

STARTUP

NESO 2.4 works in the 2.4 GHz band. Please take into account that the inherent features of this band make you must be careful with the transmitter location, and keep in mind that human body is an obstacle, and other obstacles like walls, metallic elements, etc. Connect the power supply and the antenna (vertical position) supplied to the proper connectors in the NESO 2.4 transmitter. The device will be ready to be switched on.

WARNING
Do not turn, change or disconnect the antenna. The antenna supplied is the one proper for the NESO 2.4 transmitter, and the one suitable for the best efficiency as well as the UE/FCC/ISED standards and rules applied compliance. Substitution or alteration of the supplied antenna could be harmful to the system efficiency and will cause the unfulfillment of EU/FCC/ISED standards and rules applied.

AUDIO CONNECTION
Please connect a line level (+ 4 dB) audio source to the XLR3 H connector. Please take into account that this input only be balanced if this option has been requested.

1. PIN 1 = GND
2. PIN 2 = SIGNAL
3. PIN 3 = GND

or if balanced

1. PIN 1= GND
2. PIN 2= HOT
3. PIN 3= COLD

There are two “+” and “-“ buttons on the transmitter front panel, which allow the output audio level fine setting.

CAUTION. NESO 2.4 transmitter audio output level is set in factory in the middle of the scale. Adjusting audio output level in the transmitter makes that all the hearing terminals paired with it are affected by that adjustment. Please keep in mind that, the same as with other hearing devices (headphones, etc.) a high level adjusting can cause lesions in inner ear

TRANSMITTER AND HEARING TERMINALS PAIRING

NESO 2.4 system needs that the transmitter and its associated hearing terminal(s) are identified with each other. We call this process pairing or bonding.

Pairing process is the following:

• Supply the NESO 2.4 transmitter with the power supply and switch it on. To ensure the pairing process, be sure that there’s no audio supplying.
• There are no hearing terminals limit paired with each transmitter. In addition, the transmitter can be recognized as 1, 2 or 3 by hearing terminal. That no limit of paired hearing terminals doesn’t matter if bond has be done as 1, 2 or 3.
• Each hearing terminal can be paired up to three transmitters, every time these three transmitter have been paired as 1, 2 or 3, that is: one hearing terminal cannot recognize two transmitter as 1 (or 2 or 3).
• First step is to choose the number by which the transmitter is going to be recognized by the hearing terminal (1, 2 or 3). Then, using a proper tool (could be a little screw driver or trimer) push the pairing button on the transmitter front panel as many times as the number chosen (1, 2 or 3). Please keep in mind that taps must be short, if button is pushed for more than 2 seconds, the transmitter will change to a one of the factory setting modes, which can cause malfunctions on the transmitter. If you have pushed the pairing button for more than 2 seconds, or you think that you could do it, please switch of the transmitter, wait for a minute, and switch it on again. This operation will make the transmitter operate in its working mode.

Example:

1. To pair the NESO 2.4 transmitter to a hearing terminal as 1:
   • Be sure that all the hearing terminals near the transmitter are switched off (no battery or battery housing open, or switched off if rechargeable terminal, see 3.2 point).
   • Push the pairing button on the NESO 2.4 transmitter just once.
   • At that moment, the red led on the front panel will blink once every two seconds to indicate that transmitter is ready to be paired as 1.
   • NESO 2.4 transmitter will keep in pairing mode for 20 seconds.
   • During this time, insert a battery and close the battery housing of the hearing terminal that must be paired.
   • Place the hearing terminal on top of NESO 2.4 transmitter, approximately centered on the ventilation grill.
   • The red led will keep on blinking and, at the moment that pairing is done, will light steadily for 3 seconds, then will blink again and, after the 20 seconds are over, will stop to be in pairing mode.
   • Once the pairing is succesful, switch of both transmitter and hearing terminal. Supply audio line and switch on your NESO 2.4. To start to receive audio on the hearing terminal, switch it on by closing battery housing, wait to hear a short beep (activity indicator) and, once you hear it, push the button on the hearing terminal just once, and you will start to hear the transmitted audio.
2. To pair a transmitter as 2 or as 3, the sequence of actions is the same, but to pair the transmitter as 2 the pairing button has to be pushed twice, and to pair the transmitter as 3 the pairing button has to be pushed three times.

For these two last cases, the red led blinking will be:

• For 2: Twice every 2 seconds.
• For 3: Three times every 2 seconds.

RED LED BLINKING PATTER REGARDING NUMBER FOR PAIRING

START AND STOP RECEIVING
Once the pairing is done, the hearing terminal keeps that pairing. So, if the terminal is switched off, to start using it again just switch it on (closing the battery housing), wait for the first activity beep and, to activate the receiving:

• To receive from transmitter 1, push once the button on the hearing terminal.
• To receive from transmitter 2, push twice the button on the hearing terminal.
• To receive from transmitter 3, push three times the button on the hearing terminal.

To stop the receiving, please keep pushed the button on the hearing terminal for some seconds.

If hearing terminal is out of the NESO 2.4 transmitter range for more than 5 minutes, the terminal will disconnect from the transmitter, and it will be necessary to push again the button on the terminal (as many times as the number of the transmitter you want to receive from) to start again the receiving.

HEARING TERMINALS

• Both in-the-canal and behind-the-ear hearing terminals are radio frequency systems that fit the ear in a total ergonomic way.
• Every hearing terminal have a high degree of discretion (virtually invisible), while providing a very high audio quality.
• Hearing terminals are designed to be used into the left inner ear or into the right inner ear, so there are not interchangeable between right and left.
• In-the-canal terminals are marked with a blue or red spot: if blue, it is for left inner ear, if red it is for right inner ear. In addition, the filter is also colored with the same code blue and red.
• Behind-the-ear hearing terminals case, is the speaker which marks if it should be used into the left or right inner ear: the speaker shape already indicates if it is for right or left ear, and there is a red (right) or blue (left) square with the inscription “MP2”.

Hearing terminals require an especial care from the point of view of cleaning. Ear wax and other dirt cause malfunction and failure. Please keep in mind that each person is different in terms of ear wax creation, which means that cleaning cadence must be also different. In addition, please replace the filter (in the case of both in-the-canal and behind-the-ear terminals) and the open domes (in the case of behind-the-ear terminals) frequently to avoid that dirt and ear wax get inside of the device.

DESCRIPTION

INSERTING THE BATTERY (IN-THE-CANAL AND NON-RECHARGEABLE BEHIND-THE-EAR TERMINALS) AND SWITCH ON/OFF RECHARGEABLE BEHIND-THE-EAR TERMINALS:
In-the-canal terminals and non-rechargeable behind-the-ear terminals:

1. Open the battery housing.
2. Insert the proper battery. Remember that once the battery protection adhesive has been removed, it is necessary to wait 2 min. before installing.
3. Close the battery housing. In this moment the terminal is switched on and keeps waiting for the receiving order (see 2.4 point)

Rechargeable behind-the-ear terminals:

• Rechargeable behind-the-ear terminals switch on/off is done using the action button placed on them. Push the button for 4-5 seconds and the hearing terminal will switch on if it was switched off, or the terminal will switched off if it was switched on.
• The green LED located over the action button will light once for a couple of seconds if we have switched on the terminal. Conversely, the green LED will flash three times if we have switched off the terminal.
• Once switched on, the terminal keeps waiting for the receiving order (see 2.4 point)

INSERTING AND REMOVING THE SPEAKER (battery rear hearing terminal):

1. Using the supplied tool, insert it into the hole located on the speaker housing.
2. Pry down with the tool until the the top cap is open.
3. Pull out the speaker and, with the top cap opened, place the new speaker by pushing.
4. Please be sure that the connector position is right, and the speaker is fully introduced in its housing (the whole connector wide part must be inside).
5. Close the top cap by pressing it.

INSERTING AND REMOVING THE SPEAKER (rechargeable rear hearing terminal):

1. Using the supplied tool, insert it into the hole located on the speaker housing.
2. Pry down with the tool until the plastic fixing tab rises up.
3. Pull out the speaker and, with the plastic tab still risen up, place the new speaker by pushing. Please be sure that the connector position is right, and the speaker is fully introduced in its housing (whole connector wide part must be inside).
4. Push down the plastic fixing tab.

RECHARGEABLE REAR HEARING TERMINAL CHARGE PROCESS:

On the first charge of the case/charger, be sure that it is charging at least for three hours, even when charge indicator shows charge complete before that three hours. Be sure that hearing terminals are dry before put them into the case/charger.

CASE/CHARGER CHARGE:

1. Plug the supplied power adapter into an electrical outlet and connect the charging cable to the connector on the back of the charger.
2. Three LED on the back side of the charger indicate the level of charge. One red flashing LED means low charge level; three Green LED means full charge.
3. One full charge of the case/charger allows at least three full charges for two hearing terminals.

CHARGE OF RECHARGEABLES REAR HEARING TERMINALS:

1. Put the hearing terminals into the charge slots of the case/charger.
2. During charging process, terminal LED slowly flash until terminal is fully charged. When charge is complete (around 3 hours), the LED stands on until it is removed from charger.
3. Five LED on the front of the case/charger shows the charge level of the hearing terminals batteries. When terminals are inserted or removed these LED shows the lower level of battery of both terminals. The LED indicate this charge level of the terminals batteries for 10 seconds, and then switch off. Even so, the hearing terminals will be still charging (see point #2).

SPECIFICATIONS / FEATURES OF NESO 2.4 HEARING TERMINALS

SPECIFICATIONS / FEATURES OF NESO 2.4 TRANSMITTER

IMPORTANT INFORMATION

HAZARD WARNINGS

• Keep this system out of reach of children under 5 years.
• This system must be repaired only by WAVENET RF Engineering., who expressly FORBID any change, modification or internal handling of the system.
• Do not open or internally handle either transmitter or hearing terminal. In case of failure or malfunction please contact with WAVENET RF Engineering Technical Service.
• Use only the original accessories supplied by WAVENET RF Engineering. Using another type of accessories could cause a malfunction of the system, as well as the non-compliance of the regulations.
• Do not use the cables supplied (for example the power supply cable) for any different purpose than the planned.
• Do not operate this system in locations where electronics systems working is forbidden.
• This system must not be operated in aircrafts without the specify authorization of the flight crew in charge.

PRODUCT SAFETY INFORMATION

• Protect the system from excessive vibrations.
• Protect the system from shock.
• Protect the system from excessive humidity (relative humidity <95% non-condensing).
• Do not expose the system to temperature above 45°
• Never use heating systems (oven, microwaves oven, hairdryer, etc.) to dry the devices.
• Use a damp cloth to clean the devices. Never use domestic cleaning products or alcohol to clean them.
• Use only the elements supplied and suggested by WAVENET RF Engineering (power supply, batteries, charger, etc.) to power up the system.
• When system is not in use, switch it off and storage it properly.
• Radiation from X-Ray, CT or MRI may destroy and/or adversely affect to the right working of the system.
• Keep a right cleaning of the system IN/OUT connectors.
• If system is damaged, overheated, or any cable or connector is damaged, or any liquid falls on it, stop using it, disconnected it and contact the WAVENET RF Engineering Technical Service.

CARE AND MAINTENANCE FOR NESO 2.4 HEARING TERMINALS
Hearing terminals require a special care in terms of cleaning. Wax, humidity and another dirt cause failures and malfunction of them.
To avoid wax and dirt from entering the terminals, it is necessary to replace frequently the filter (in the case of both terminals type) and the open dome (just in the case of behind-the-ear terminals).
It is very important to keep in mind that each person is different in terms of wax generation, which means that cleaning, and filters and/or open domes replacement frequency have to be adequate taking into account this appreciation.

As general advice, we highlight the following:

1. Do not immerse the terminal in any liquid.
2. Keep the terminals dry and clean.
3. Open de battery case when terminals are not in use. This will help their drying if they have condensation moisture.
4. Clean the terminals with a soft cloth and a little brush (the kit supplied) after each use to remove any accumulated dirt.
5. To make a deeper cleaning, as well as to sanitize the terminal, it is recommended to use the NESO 2.4 air blower (reference PLN) and the cleaning spray (reference SLN).
6. Occasionally, to sanitize the terminal, a very little alcohol can be used, but never directly on the terminal. The appropriate way is to put a drop or two on the supplied brush or cloth and clean the terminal with them.
7. Examine the open dome of the behind-the-ear-terminals after each use, and replace it with some frequency.
8. Examine the filter (in both terminals type). It is important not to let dirt and/or earwax accumulate on them, as they will end up entering the terminal, which will cause malfunction or failures in it. Replace the filter with some frequency (in the case of in-the-canal terminals the replacement frequency must be higher, because unlike of behind-the-ear terminals, they do not have the open domes, which are a first barrier to avoid dirt).
9. Keep the terminals away from excessive heat and direct sunlight. Heat can warp the case, damage the electronics, and/or deteriorate the surface.

DECLARATION OF CONFORMITY

EUROPEAN UNION
Servicios de Radio Wavenet, S.L. declares that this product comply with the following regulations:

EU:

• Technical rule of reference: EN 300.328
• This device is in compliance with the essential requirements of conformity of the 93/42/CEE directive, Annex I.
• This device is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/UE

You can ask for a copy of the Declaration of Conformity by contacting the manufacturer, which can be done on its website www.wavenetradio.com

The operation of this system is subject to the following conditions:

1. This system must not cause interferences to other systems.
2. This system must accept any interference from other systems, including if this interferences cause a malfunction of it.

This system uses, generates and can radiate radio frequency energy. If it is not installed an operated under the manufacturer instructions, can cause undesired interference to other devices and/or systems.

USA & CANADA:
The transmitter of this system complies with Part 15 of the FCC Rules and with RSS-247 and RSS-210 Rules of Industry Canada.

Operation is subject to the following two conditions:

1. This transmitter must not cause interferences to other systems
2. This system must accept any interference from other systems, including if this interferences cause a malfunction of it.

The transmitter has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. The system generates, uses and can radiate radio frequency energy and, if not installed and used according with this User Manual instructions, may cause harmful interference to radio communications. Even so, there is no guarantee that interference will not happen in a specific installation. If the system causes interference to radio or television reception (this can be determined by switching on and off the system), the user could try to correct the interference with this suggestions:

• Changing the location of the receiving antenna.
• Increase the distance between the system and the TV or radio device.
• Use a different socket for system than the used with the TV or radio device.
• Consult a radio/TV technician for help.

WARNING
ANY CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE MANUFACTURER AND BY THE PARTY RESPONSIBLE FOR COMPLIANCE WILL VOID THE USER’S AUTHORITY TO OPERATE THE SYSTEM

To comply with FCC RF exposure limits for general population, the antenna used for the transmitter of this system must be installed at least 20 cm of any person that could be around. In addition, the transmitter of this system must not be located or operating in conjunction with any other antenna or transmitter. The transmitter of this system is a Class B digital device that complies with Canadian ICES-003. To comply with Canada RF exposure limits for general population, the antenna used for the transmitter of this system must be installed at least 20 cm of any person that could be around. In addition, the transmitter of this system must not be located or operating in conjunction with any other antenna or transmitter.

WARRANTY

• In compliance of current European Union regulation, Servicios de Radio Wavenet offers a limited 2 years warranty, which is valid from date of purchase.
• This warranty covers the repair of any manufacturing defects. The warranty does not cover the damages caused by an unsuitable system operation, and chemical or liquid exposure nor spare parts.
• The internal device handle, repair or non-authorized changes done by external people of Servicios de Radio Wavenet, S.L., immediately null and avoid the warranty.

FAQ

Q: Can I adjust the audio output level of individual hearing terminals?
A: The audio output level adjustment on the transmitter affects all paired hearing terminals simultaneously. Adjust with caution to prevent damage.

References

• WAVENET RF ENGINEERING. Expertos en Ingeniería de Radio Frecuencia

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