RF Modulator Plug and Play HD Multimedia Interface Input NTSC PAL Output VHF AV Demodulator for CATV System Feature: 1. Professional RF modulator, which can effectively adapt to your local CATV system, with stable performance and better signal. 2. The modulator adopts VHF operating frequency controlled by PLL, HD Multimedia Interface input, AV output, RF output. 3. High definition RF modulator, support NTSC and PAL TV format output, the image is clear, to meet your different needs. 4. No need to install drivers, flexible, plug and play, compact and portable RF modulator, easy to use at any time. 5. This modulator is not only suitable for your TV, but can also be connected to computers, laptops, game consoles, AV equipment, etc. Specification: Item Type: RF Modulator Material: Plastic TV Standard Format: Compatible with PAL, NTSC at the Same Time Frequency Range: PAL: 55.25MHz/62.25MHz; NTSC: 61.25MHz/67.25MHz Output Level: 80±5dBuV Input Level: 0.77Vp-P for 80%+/-10% Modulation Sound System: M = 4.5MHz, B = 5.5MHz Video Input Impedance: 75 Ohms / 1KOhms (Switch Cable) Sound Input Impedance: 13 ± 3k Ohms Input Port: HD Multimedia Interface Output Port: RCA Female RF Input: F Female RF Output: F Female Input Resolution: 1080P, 1080i, 720P, 576P, 576i, 480p HD Multimedia Interface Version: 1.3 HDCP Version: 1.3 Power Consumption: 500mA (min) / 5V DC Working Temperature: 0& 8451;& 65374;+40& 8451; Package List: 1 x RF Modulator 1 x Transmission Cable 1 x Card Manual How to use: Please click the graphic to connect and follow the steps Step 1: Connect 5V 1A power adapter with USB output; Step 2: The channel is set to CH3 or CH4, the modulator switch is set to on (set to OFF, the RF part does not work); Step 3: Connect RF in and RF OUT; Step 4: Power on the HD Multimedia Interface device and connect the HD Multimedia Interface input signal; Step 5: Turn on the TV to CH3 or CH4. Please follow the above steps strictly