Experience high-performance FM transmission with this advanced 7W Stereo PLL FM Transmitter, designed using cutting-edge DSP and PLL technology to ensure ultra-stable frequency output that remains unaffected by environmental changes. This transmitter offers continuously adjustable output power ranging from 0.1W up to 7W, allowing precise control to meet various broadcasting needs while delivering a clean output spectrum with minimal harmonic distortion. Key Features: · Advanced DSP + PLL Technology: Guarantees stable frequencies without drift, providing consistent and reliable FM transmission across the 76MHz to 108MHz working frequency band. · Continuously Adjustable Output Power: Seamlessly adjust transmission power from 0.5W to 7W to optimize range and signal strength for different environments and applications. · Clean and Clear Audio Output: Equipped with a digital potentiometer for smooth volume control, including a dedicated microphone input with independent microphone volume adjustment, enhancing audio clarity and flexibility. · Memory Function for Convenience: Remembers the power-down frequency and volume protection settings, eliminating the need for reconfiguration upon every startup to save time and effort. · Superior Audio Quality: Features stereo separation greater than 63dB and low distortion rates between 0.03% and 0.1%, delivering crisp, high-fidelity stereo sound for professional-grade broadcasts. · Long-Range Transmission: Capable of achieving transmission distances exceeding approximately 8 kilometers (about 8749 yards) under open conditions, making it ideal for outdoor and large-area coverage. · Durable PCB Construction: Built on a fireproof PCB board measuring approximately 100 x 60mm, ensuring stable operation and durability; compact control panel (58 x 36mm) allows easy integration and handling. Specifications: · Item Type: 7W Stereo PLL FM Transmitter · Material: PCB · Color: As shown in the picture · Input Voltage: DC 12V · Input Current: 3.0A · Audio Signal Input: Maximum Input Vpp less than 1V · Microphone Type: Cylindrical Microphone · Output Power: 0.5W to 7W Continuously Adjustable · Output Impedance: 50Ω · Working Frequency Range: 76MHz – 108MHz · Frequency Resolution: 0.1MHz · Distortion Degree: 0.03% – 0.1% · Stereo Separation: Greater than 63dB · Fireproof Board Size: Approx. 100 x 60mm (3.9 x 2.4 inches) · Control Panel Size: Approx. 58 x 36mm (2.3 x 1.4 inches) · Transmission Distance: More than approx. 8 km (8749 yards) in open environments Package Includes: · 1 x 7W Stereo PLL FM Transmitter This 7W Stereo PLL FM Transmitter is an ideal choice for radio enthusiasts, professionals, and beginners seeking a reliable, easy-to-use broadcasting solution. Its stable frequency, wide adjustable power range, and clear audio output make it perfect for personal use, community radio, or DIY transmission projects. Enjoy the freedom to customize your FM broadcasts with this versatile and robust transmitter.