Enhance your local CATV system with this high-performance RF Modulator, designed for reliable signal conversion and superior compatibility. Featuring PLL-controlled VHF working frequency, this modulator supports HD input and provides both A/V and RF output with selectable output channels, making it an ideal solution for seamless audio and video transmission. Compatible with NTSC TV format output, it offers plug-and-play convenience without the need for additional drivers, ensuring easy installation and flexible use. Key Features: · PLL-Controlled VHF Frequency: Ensures stable and precise signal modulation with selectable output channels (CH3=61.25MHz / CH4=67.25MHz) for customized viewing options. · NTSC TV Format Support: Compatible with standard NTSC television systems, delivering clear and consistent video and audio output. · Multiple Output Interfaces: Equipped with RCA female A/V connectors and F female RF input/output ports for versatile connectivity. · Plug and Play Design: No driver installation required, allowing for quick setup and immediate use in various applications. · Durable ABS Plastic Construction: Made from high-quality ABS material, this RF modulator offers sturdiness, long service life, and reliable performance. · Low Power Consumption: Operates efficiently with USB 5V DC power supply, suitable for extended use. · Compact and Lightweight: Measuring 62 x 63 x 25mm and weighing only 52g, this modulator is portable and easy to integrate into your setup. Specifications: · Model: M61A · Standard: NTSC · Material: ABS Plastic · Frequency Range: CH3=61.25MHz / CH4=67.25MHz · Output Impedance: 75 Ohm · Output Level: 80±5dBμV · Sound System: M=4.5MHz · Video Input Impedance: 75 Ohms / 1k Ohms (switchable) · Audio Input Impedance: 13±3k Ohms · TV to ANT Insertion Loss (50-860MHz): -6±2dB · A/V Connector: RCA Female · RF Input/Output: F Female · Power Consumption: USB 5V DC · Operating Temperature: 0℃ ~ +40℃ · Item Size: 62 x 63 x 25mm (2.44 x 2.48 x 0.98in) · Item Weight: 52g (1.83oz) Package Includes: · 1 x RF Modulator · 1 x USB Cable · 1 x User Manual (English) This RF Modulator offers professional-grade performance with stable characteristics and high reliability, making it an excellent choice for upgrading your CATV system or home entertainment setup. Its personalized design and exquisite workmanship combine functionality with durability, providing a flexible and user-friendly solution for audio and video signal modulation.