1. Introduzione
The NIORFNIO 15W FM Transmitter is a versatile device designed for wireless stereo broadcasting across the 87-108MHz frequency range. It is suitable for various applications including churches, cars, shopping malls, lecture halls, and private radio stations. This manual provides detailed instructions for setting up, operating, and maintaining your transmitter to ensure optimal performance.
Le caratteristiche principali includono:
- Adjustable transmission frequency within 87.0 ~ 108.0MHz.
- 5W / 15W high-low power adjustment for transmission distances of 3-4 km (1.9-2.5 mi) in open air.
- Advanced modulation system with built-in PLL frequency, audio pre-emphasis, limiter, and low-pass filter circuit.
- Efficient heat dissipation via a high-quality dual ball bearing fan and optimized thermal channels.
- PC control capability via micro USB for intelligent broadcasting features like time-scheduled broadcasts.
- Includes a 1/4 wavelength magnetic sucker antenna for flexible placement and effective signal transmission.
- High-fidelity Bluetooth connectivity for wireless audio streaming from mobile devices.

Figura 1.1: Fronte view of the NIORFNIO 15W FM Transmitter, showing the display and control knobs.

Figure 1.2: The transmitter's versatility for various applications, including private radio and public broadcasting.
2. Guida all'installazione
Follow these steps to set up your NIORFNIO 15W FM Transmitter:
- Contenuto della confezione: Carefully remove all components from the packaging. Ensure you have the transmitter unit, magnetic sucker antenna, power adapter, and any included cables.
- Connessione dell'antenna: Connect the magnetic sucker antenna to the "RF-OUT" port on the back of the transmitter. Ensure the connection is secure. For optimal performance and to prevent damage, always connect the antenna before powering on the device. Position the antenna on a metal surface (e.g., car roof, balcony railing) to create a ground plane, which enhances signal transmission.
- Collegamento elettrico: Connect the power adapter to the "12V===2A" input port on the back of the transmitter, then plug the adapter into a standard electrical outlet.
- Ingresso audio:
- Via Audio Jack: Connect your audio source (e.g., MP3 player, computer, mixer) to the "Audio" input jack on the front panel using a 3.5mm audio cable.
- Tramite Bluetooth: Power on the transmitter. On your audio device, search for Bluetooth devices and select "NIORFNIO" to pair.
- Via Microphone: Connect a microphone to the "MIC" input jack on the front panel.
- Controllo PC (facoltativo): To use PC control features, connect a micro USB cable from the "PC Control" port on the back of the transmitter to your computer. You may need to install specific drivers and software, which can typically be obtained from the manufacturer's support websito.

Figure 2.1: Detailed diagram of the transmitter's front and back panels, indicating ports and controls.
3. Istruzioni per l'uso
Once set up, operate your transmitter using the following guidelines:
- Accensione/spegnimento: Press the "Power On/off" button (circular button with power symbol) on the front panel to turn the unit on or off. The display will illuminate.
- Regola la frequenza: Use the "Up" (triangle pointing up) and "Down" (triangle pointing down) buttons to adjust the transmission frequency. The current frequency will be displayed on the LCD screen. Select a clear frequency not currently in use in your area to avoid interference.
- Adjust Audio Volume: Rotate the "Audio volume adjustment" knob (leftmost knob) to control the input audio level. Adjust this to prevent distortion while ensuring sufficient signal strength.
- Regola il volume del microfono: If a microphone is connected, rotate the "Microphone volume adjustment" knob (rightmost knob) to control its input level.
- Power Output Adjustment: The transmitter supports 5W and 15W power output modes. Refer to the device's menu or PC control software for instructions on switching between these power levels. Higher power provides greater range but consumes more energy and generates more heat.
- Channel Switching (Stereo/Mono): The device supports switchable stereo and mono channels. This setting can typically be adjusted via the device's menu or PC control software. Stereo mode provides higher fidelity for music, while mono mode can improve clarity for voice broadcasts over long distances.
- Funzionamento Bluetooth: After pairing, ensure your audio device's volume is set appropriately. The transmitter will broadcast the audio received via Bluetooth.
- PC Control Software: If using the PC control software, launch the application on your computer. This software allows for advanced settings, including frequency control, power output adjustment, and scheduling of broadcasts. Ensure the transmitter is connected via USB and recognized by the software.

Figure 3.1: Illustration of the transmitter's effective range in an open-air environment.

Figure 3.2: The transmitter supports a broad frequency range from 76 to 108 MHz.
4. Manutenzione
Proper maintenance ensures the longevity and optimal performance of your FM transmitter:
- Pulizia: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or abrasive materials, as they may damage the finish or internal components.
- Ventilazione: Ensure the ventilation openings on the unit are not blocked. The transmitter uses a dual ball bearing fan for heat dissipation; proper airflow is crucial to prevent overheating.
- Cura dell'antenna: Keep the antenna clean and free from obstructions. Periodically check the antenna connection for tightness.
- Magazzinaggio: When not in use for extended periods, store the transmitter in a cool, dry place away from direct sunlight and extreme temperatures.
- Gestione dei cavi: Avoid kinking or sharply bending power and audio cables to prevent internal wire damage.
5. Risoluzione Dei Problemi
If you encounter issues with your transmitter, refer to the following table for common problems and solutions:
| Problema | Possibile causa/soluzione |
|---|---|
| Nessuna alimentazione / L'unità non si accende. |
|
| No audio output / Weak signal. |
|
| Poor Bluetooth audio quality / Low volume. |
|
| Interferenza o elettricità statica. |
|
| L'unità si surriscalda durante il funzionamento. |
|
6. Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Numero di modello | T15B |
| Marca | Robot VR |
| Gamma di frequenza di trasmissione | 87.0 ~ 108.0 MHz |
| Potenza in uscita | 5W / 15W (adjustable) |
| Distanza di trasmissione | 3-4 km (1.9-2.5 mi) in open air |
| Tecnologia di connettività | Bluetooth, USB |
| Modalità di uscita audio | stereo, mono |
| Caratteristica speciale | Built-In Bluetooth, PC Control |
| Dimensioni (confezione) | 11.85 x 7.95 x 3.11 pollici |
| Peso dell'articolo | 3.52 libbre |
| Produttore | Baile/Guangzhou Liannuo Electronic Technology Co., Ltd. |
7. Informazioni sulla garanzia
This product is covered by a standard manufacturer's warranty. For specific details regarding warranty duration, coverage, and claims procedures, please refer to the documentation included with your purchase or contact the manufacturer directly. Keep your proof of purchase for warranty validation.
Potrebbero essere disponibili anche piani di protezione per una copertura estesa. Verifica con il tuo rivenditore opzioni come piani di protezione biennali o triennali.
8. Supporto
For technical assistance, product inquiries, or customer service, please contact VR-robot support through their official channels. You can often find support information on the product packaging, the manufacturer's website, or the retailer's product page.
Per ulteriori risorse e informazioni sui prodotti, puoi visitare il sito VR-robot Store on Amazon.





