Welcome to our store！</br> 1、PARAMETERS: M61A modulator supports NTSC format output, frequency range: CH3=61.25MHz CH4=67.25MHz, video input impedance: 75 Ohms 1k Ohms (for Switch able), sound input impedance: 13±3k Ohms. 2、VHF OPERATING FREQUENCY, NTSC CH3 CH4 CHANNEL: PLL controlled VHF operating frequency, output NTSC CH3 CH4 channel. 3、FINE CRAFTSMANSHIP: Video sound RF modulator with fine workmanship and stable performance, suitable for your local CATV system. 4、NTSC OUTPUT: Video sound RF modulator supports NTSC output, and the output format is only suitable for the Americas. 5、PREMIUM MATERIAL: Digital RCA To RF modulator is made of premium ABS material, sturdy and durable, long service life. Professional manufacture, stable performance and high reliability. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> Item Type:&nbsp;RF&nbsp;Modulator Material: ABS&nbsp; Model: M61A TV Standard Format: NTSC Frequency Range: NTSC: CH3=61.25MHz CH4=67.25MHz Output Level: 80±5dBuV Sound System: M=4.5MHz Video Input Impedance: 75 Ohms/1k Ohms (for&nbsp;Switch Able) Sound Input Impedance: 13±3k Ohms AV Connector Port: RCA Female RF Input: F Female RF Output: F Female Input Voltage Current: DC 5V 300mA <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Modulator 1 x Power Supply Line&nbsp; 1 x Instruction Manual Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>