Features 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 ModulatorMaterial: ABSFrequency Range: 471.25MHz-855.25MHzTV Standard: PAL NTSCChannel Range: UHF 21~69Output Level: 855dBuVAudio System: M=4.5MHz B G=5.5MHz I=6.0MHz D K=6.5MHzA V Connector: RCA Female ThreadRF Output Impedance: 75Video Input Impedance: 75RF Input: F FemaleRF Output (DC Output): F Female Thread (DC Output: 9VDC 100m)Power Consumption: 500mWWorking Temperature: 0+40 Package List 1 x Modulator1 x Power Cord1 x Signal Line2 x Double Sided Stickers1 x Manual