Usage Tips:TV200 analog TV transmitter is a household analog TV transmitter with adjustable power and frequency, The transmission power is adjustable from 0.5W to 2W, and it can output high-definition 1080 signals or input CVBS analog signals, The maximum distance can reach several hundred meters without obstacles and with the transmission antenna matching the transmission frequency. Input voltage: DC12V, power adjustable between 0.5W-1W Input voltage: DC24V, power adjustable between 1W-2W When using a telescopic antenna for transmission, only 12V power can be used and the power needs to be adjusted to the lowest level to function properly Work, when the power is high, there be no display after the first few seconds of startup. Press and hold (Power) when there is no display Press the (minus) button for 10 seconds and then release it to set the power to the lowest state. Turn off the power and then turn it back on to work normally Increase the transmission power appropriately while watching the TV screen until the picture is clear and the accompanying sound is clear and loud. Support VHF 85.25MHZ-216.25MHz setting Support UHF 471.25MHZ-839.25MHz setting Sound frequency setting of 4.5MHZ-6.5MHZ Support high-definition to CVBS output FM transmission FM transmission frequency: , set the transmitter to 85.25MHz on VHF, with a sound frequency of 6.5MHz. The TV frequency plus the sound frequency result in Equivalent to the receiving frequency of the radio, 85.25+6.5=91.75 85.25+6.0=91.25 85.25+5.5=90.75 85.25+4.5=89.75 Colour:Photo Color Material:Metal Package Contents: 1 x Signal Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.