Features 1.Adjustable: Professional UHF modulator can be designed with adjustable sound or video output levels and optional output channels. 2.Frequency Range: RF modulator has a wide frequency range of 471.25 MHz to 885.25 MHz and is available in both formats. 3.Memory: Modulator can select the transmit frequency and the corresponding frequency display, and mix and interfere in the built in memory. 4.PCB Circuit Design: TV link modulator adopts broadcast standard PCB circuit design to further enhance the stability and better picture quality. 5.Compatible: Professional UHF modulator is used for RF output of SLX and TV Link, compatible with set top boxes and other A V sources. 6.Application: Modulator is suitable for hotels, supermarkets, sports cafes, bars, restaurants and many other places. specificationItem Type: TV Link Modulator Material: ABS Frequency Range: 471.25MHz-885.25MHz TV Standard: PAL/NTSC Channel Range: UHF 21-69Ch Output Level: 855dBuV Sound System: M=4.5MHz, B/G=5.5MHz, I=6.0MHz, D/K=6.5MHz A/V Connector: RCA Female Thread RF Output Impedance: 75 Video Input Impedance: 75 RF Input: F Female RF Output (DC Output): F Female Thread (DC Output: 9VDC/100m / 109.4yd ) Default Factory Setting: Channel 21(471.25MHz), PAL-B/G /38KHz Power Consumption: 1W PackageList 1 x Modulator 1 x USB Power Cable 1 x Signal Cable 2 x Double Sided Sticker