All-Channel NTSC Composite Video Audio To RF Coax TV ModulatorCategory: Ntsc ModelThis RF/coax agile modulator converts standard composite video/audio inputs to a user-defined TV channel output. Any TV connected to the output from this A/V to RF modulator via coax cable connection can receive the same A/V signal when tuned to the specific channel.All standard composite A/V signals from devices such as satellite receivers, Digital TV converter box, DVD player or CCTV surveillance camera can be modulated by this device into a cable TV channel frequency or UHF/VHF cannel frequency of user's choice, which can be combined with the existing cable TV system as one of your new TV channels.More TVs and A/V modulators can be added to the existing setup for various applications such as:home entertainmenteducational trainingsecurity surveillancecommercial advertisement/digital signageinformation displayemergency messaging announcementprivate MATV systemIts programmable TV channel selection allows users to assign any desired TV channel frequency for its RF output. Channel selection is controlled by the front panel push button.Multiple of these modulators can be combined together for broadcasting more A/V source signals and building up a large-scale TV distribution system for class rooms, hotels, restaurant, retail stores, hospitals.Easy OperationSimply connect the video/ audio output from device such as set top box, sureillance camera, DVD player to the RCA A/V input of this agile modulator and then connect its RF coax output to your TV or a coax cable combiner/splitter for further distribution.Next use the push buttons and digital screen display located on the front panel to choose an unused or unwanted TV channel number for CATV system or UHF/VHF system use. At last simple use your TV remote to tune to the channel you just assigned for your DVD or camera video. Bingo !Product FeaturesProfessional-grade audio/video RF modulator for broadband A/V distribution for all NTSC TV system setup.Converts standard composite RCA video/audio input to a user-defined CATV/UHF channel.Selectable RF output in CATV channels ranging from CH2 to CH138 or UHF/VHF channels from CH14 to CH83.Programmable channel output flexibility in altering TV channel line-ups and instant replacement of existing TV channels.Designed for North America regions using NTSC TV broadcast standard.Transmitting audio/video over coax cable offers greater transmission range and much lower cost than the typical balun or Cat5 extender solution.Supports all audio/video sources such as satellite receivers, media players, video camera or other composite video devices.Must-have A/V adapter for combining both RCA video/audio from device into RF type for long range video/audio distribution.Cost saving with source device sharing.All TVs connected through the same coax cable can share the same A/V device or media player.Video and audio signals from CCTV surveillance camera can be presented on your TV channels.Supports manual output gain control. Manual gain level adjustment available from 0 to 20 dB.Powerful 100db signal output sufficient for long cable runs up to 1200 meters.Multiple units cascaded together to distribute multiple audio video inputs from one coax cable run.Last memory support for keeping user's last-minute setting intact after being powered off manually or power outage event.Digital LED channel display and controls for convenient monitoring and operation.Rack mount ready for 1U, 2U or 3U. The optional rack mounting kit can be purchased separately to have multiple units of these AV to RF modulators installed together.