1. Introducción
The Yosoo ATU-100 Pro+ is an automatic antenna tuner designed for radio stations, offering efficient and hassle-free tuning. This device features a robust aluminum alloy casing, high-performance internal components, and a clear OLED display for monitoring. It is equipped with a Type-C charging interface for convenience.
Características principales:
- Aluminio robusto Casing: Constructed with durable aluminum alloy for enhanced stability and longevity.
- High-performance Components: Utilizes top-quality capacitors, imported chips, and ultrahigh frequency connections for reliable operation.
- Fácil monitoreo: Features a 0.96-inch OLED display screen for clear and effortless adjustment and monitoring of settings.
- Carga conveniente: Integrated Type-C charging interface for efficient and simple power replenishment.
- Premium Automatic Tuning: Provides automatic tuning capabilities without the need for control lines, suitable for various broadcasting stations.
2. Configuración
Follow these steps to set up your ATU-100 Pro+ antenna tuner:
- Desempaque el dispositivo: Carefully remove the ATU-100 Pro+ tuner and any accessories from its packaging.
- Conectar la antena: Connect your antenna to the "ANT" connector on the tuner. Ensure a secure connection.
- Connect Radio/Transceiver: Connect your radio or transceiver to the "RFIN" connector on the tuner. Ensure a secure connection.
- Encendido: Locate the power switch on the tuner and switch it to the "ON" position. The OLED display should illuminate.
- Cargo inicial (si es necesario): If the device does not power on, connect a Type-C USB cable to the charging port and a suitable USB power source to charge the internal battery. A red "charge" indicator light will show charging status.

Imagen: Trasera view of the ATU-100 Pro+ showing the ANT (Antenna) and RFIN (Radio Frequency Input) connectors.

Imagen: Detallada view of the tuner's front panel, highlighting the OLED display, TUNE button, and charging port.
3. Instrucciones de funcionamiento
The ATU-100 Pro+ features an intuitive interface for automatic antenna tuning.
3.1. Pantalla y controles
The 0.96-inch OLED display provides real-time information on power (PWR), Standing Wave Ratio (SWR), inductance (L), and capacitance (C). The primary control is the TUNE button.

Imagen: Frente view of the ATU-100 Pro+ with its OLED display active, showing tuning parameters.
3.2. Sintonización automática
To initiate automatic tuning:
- Ensure your radio is transmitting a low-power signal (e.g., 5-10W) on the desired frequency.
- Presione el MELODÍA button. The tuner will automatically adjust its internal components (inductance and capacitance) to achieve the lowest possible SWR.
- Monitor the SWR reading on the OLED display. The tuning process is complete when the SWR stabilizes at a low value.
The tuner is designed for hassle-free operation, automatically finding the optimal settings for your antenna and frequency.
3.3. Configuration Interface
The ATU-100 Pro+ features a configuration interface for advanced settings. To access and navigate this interface:
- Método de acceso: The specific method to enter the configuration menu is typically by a long press or a combination of presses on the TUNE button while powering on, or a dedicated menu button if present. Refer to the device's on-screen prompts.
- Selección de modo: Presione brevemente el MELODÍA button to modify the current value within a setting.
- Cambiar configuración: Mantenga pulsado el MELODÍA button to switch between different configuration settings.
- Auto Mode (ON/OFF): This setting allows you to enable or disable the automatic tuning mode. Adjust this as needed for your operational preferences.
The tuner comes with firmware version 3.1, which includes an optimized power measurement calibration algorithm for improved accuracy.
3.4. Demostración en video
Video: A demonstration of the ATU-100 Pro+ automatic antenna tuner in operation, showing the tuning process and display readings. This video illustrates how the device adjusts to achieve optimal SWR.
4. Mantenimiento
Proper maintenance ensures the longevity and optimal performance of your ATU-100 Pro+.
- Limpieza: Use a soft, dry cloth to clean the exterior of the tuner. Avoid using abrasive cleaners or solvents, which can damage the aluminum casing y pantalla.
- Almacenamiento: Guarde el sintonizador en un lugar fresco y seco, alejado de la luz solar directa y de temperaturas extremas cuando no esté en uso.
- Cuidado de la batería: For optimal battery life, avoid fully discharging the device frequently. Charge the battery regularly, especially if storing for extended periods.
- Comprobaciones de conexión: Periodically inspect all cable connections (antenna, radio, charging) for wear or damage. Ensure they are securely fastened.
5. Solución de problemas
If you encounter issues with your ATU-100 Pro+, refer to the following common problems and solutions:
| Problema | Posible causa | Solución |
|---|---|---|
| El dispositivo no se enciende. | Batería baja o agotada. | Connect the tuner to a power source using the Type-C USB cable and allow it to charge. |
| High SWR after tuning. | Antenna mismatch, faulty cable, or out of tuner's range. |
|
| Tuner does not respond to TUNE button. | Device frozen or temporary software glitch. | Apague el dispositivo, espere unos segundos y luego vuelva a encenderlo. |
| La pantalla está en blanco o ilegible. | Problema de energía o mal funcionamiento de la pantalla. |
|
6. Especificaciones
Detailed technical specifications for the Yosoo ATU-100 Pro+ Automatic Antenna Tuner:
| Característica | Valor |
|---|---|
| Número de modelo del artículo | ATU-100 Pro+ |
| Material | Aleación de aluminio |
| Pantalla de visualización | 0.96 Inch Organic Light Emitting Diode (OLED) |
| Frecuencia de funcionamiento | 1.8-55 MHz |
| Corriente de carga USB | 1A |
| Modelo de batería | 3.6V Lithium Battery 1350MAH (Built-in) |
| Corriente máxima | 400 mA |
| Máxima potencia | 100 W |
| Maximum Measurable Power | 150 W |
| Minimum Power for Setting Start | 5W |
| Potencia mínima medible | 0.1 W |
| Power Measurement Step Below 10W | 0.1 W |
| Power Measurement Step 10W | 1W |
| Precisión de medición de potencia | 10% |
| Specified Maximum Inductance | 8.53uH |
| Minimum Inductor Installation Step | 0.05 µH |
| Maximum Installation Capacity | condensador de 1869 pF |
| Minimum Capacitor Installation Step | 10 pF |
| Dimensiones del producto | 7.09 x 4.33 x 2.36 pulgadas |
| Peso del artículo | 1.1 libras |
7. Garantía y soporte
Yosoo products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation included with your purchase or contact Yosoo customer support directly.
If you require technical assistance or have questions regarding your ATU-100 Pro+, please visit the official Yosoo website or contact their customer service department. Keep your purchase receipt handy for any warranty claims.





