Aska Analog Ch 3/4 RF Modulator
Model RFM-1G is designed to convert the Audio or Video input signals into normal VHF TV signal for a television set, and has a built-in switch for antenna/cable input that automatically reroutes the external input sources to the television when a video signal is not detected. Outputs on Channel 3 or 4.Video Carrier Output: 150mV Video inputImpedance: 75 or 1K ohm switch-ableOutput Impedence: 75 Ohm F-portVideo Input level: 1V P-P NTSC NegativeSYNC Video output level: 10dBmV OutputChannels: 3 or 4Power Supply: 117 VAC/60HzConnectors: RCA jack for audio/video input / F-connector for RF output