Feature: 1. High Quality Mmaterials: UHF modulators are made of high quality materials, which are durable and have a long service life. 2. Support PAL NTSC: UHF modulator, PAL, NTSC are optional. Save costs for your own local cable TV system. 3. Adjustable: The audio and video output levels of the TV LINK modulator are adjustable, and the output channels are optional. 4. Beautiful and Convenient: TV LINK modulator has a simple appearance and exquisite craftsmanship, which will bring you a better experience. 5. Application: Compatible with set top boxes and other A, V sources, used for RF output of SLX and TV links. Specification: Item Type: TV Link Modulator Material: ABS Frequency Range: 471.25MHz-855.25MHz TV Standard: PAL NTSC Channel Range: UHF 21~69 Output Level: 85±5dBuV Audio System: M=4.5MHz, B G=5.5MHz, I=6.0MHz, D K=6.5MHz A V Connector: RCA Female Thread RF Output Impedance: 75Ω Video Input Impedance: 75Ω RF Input: F Female RF Output (DC Output): F Female Thread (DC Output: 9VDC 100m) Input Voltage: DC 5V Power Consumption: ≤500mW Working Temperature: 0℃～+40℃. Package List: 1 x Modulator1 x Power Cord1 x Signal Line2 x Double Sided Stickers1 x Manual