GOWENIC M70RV TV Link Modulator, Support PAL/NTSC Professional AV to RF Converter, TV Link Modulator AV to RF Converter, for AV Source Set Top Boxes, with USB Charge Cable

How to Use: There are 2 keys for setting, default setting: Channel 21. 1. Set channel: Press "CH +" or "CH?" to set the channel. 2. Drive frequency: Press "CH?" 3 to select 4.5 / 5.5 / 6.0 / 6.5MHz. 3. TV format (PAL / NTSC): Press "CH +" 3 to select PAL / NTSC. Specification: Item Type: TV Link Modulator Material: Plastic TV Standard Format: PAL /NTSC Channel Range: PAL: 471.25~865MHz?21~69ch? NTSC: 471.25~885MHz(14~83ch) Output Level: 85±5dBuV Accompaniment System: M=4.5MHz, B/G=5.5MHz, I=6.0MHz, D/K=6.5MHz A/V Connection: RCA Female RF Input: F female RF Output: F female RF Output Impedance: 75 ? (Unbalanced) Video Input Impedance: 75 ? Default Factory Setting: Channel 21(471.25MHz), PAL Energy: USB DC 5V Power Consumption: <1W Operating Temperature: 0? ~ +40? Package List: 1 x TV Link Modulator 1 x Transmission Cable 1 x English Manual