4-Input Composite Video Audio To RF Coax TV Modulator
This professional RF modulator combines 4 RF modulators into one unit so it can convert and combine 4
composite RCA video/audio inputs into 4 user-defined TV channels at the same time for commercial or educational purpose.
It is developed for distributing 4 live composite video signals on new or existing cable TV system through using the existing coax cable setup.
Any standard composite RCA video audio feeds from devices such as satellite receivers, cable box, digital TV converter, DVD player or surveillance camera can be modulated by this device into a new private TV channel of user's choice for distribution or merged with existing analog TV system.
More TVs and A/V modulators can be added to the existing setup for various applications such as:
Its programmable TV channel selection allows users to assign a desired TV channel frequency for each video input equipment. TV channel selection is controlled by push buttons on the front panel.
Easy Expansion
This 4-input RF modulator allows user to create up to 4 private TV channels for school, community, church or conference room.
You will just need 3 of these modulators for creating 12 private TV channels instead of purchasing 12 single-channel modulators. Great saving on money, cabling, space and power supply.
Users can add more of these RF modulators at any time for more video sources to be modulated into more TV channels and combined in same coax cable run for distribution.
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Easy Operation
After finishing the cable hookup, simply use the push buttons on the front panel
to assign a desired TV output channel number for each video input device.
Then users could use the TV remote to tune into the new channels just created and shall see the DVD video or camera screen showing on the TV screen.
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4 RCA Video/Audio Inputs
This RF modulator supports total of 4 composite RCA video inputs with 4
associated mono audio inputs.
Each video/audio input can be individually configured for different RF TV channel output.
Any TV daisy chained through the same coax cable connected with the output of this 4-channel RF modulator can display the same video signals when tuned into each specific TV channel created through this device.
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Double Side Band Design
The TV output channel assignment for each video input must skip the interval channel so the modulated video will retain the same video quality as the original source signal
due to its double side band design.
For example if the input A is set for using CH58, input B must skip CH59 and use CH60 or other higher channel number to avoid the interference caused by using very close channel frequency range between 2 consecutive TV channels.
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Video Audio Extension Over Coax Cable
This RF modulator can also be combined with our RF demodulator, RFDM2 model, so they can be used as a video/audio over coax
cable extender kit for many purposes such as CCTV surveillance, multimedia center, etc.
Other typical uses of this RF modulator including:
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Air/CATV Video System Support
This video/audio modulator supports both CATV and UHF/VHF system mode with wide TV channel frequency range support.
The cable TV channel range starts from CH58 to CH138 and the UHF/VHF channel range starts from CH14 to CH83.
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Powerful 100db Output For
Long Range Transmission
This RF modulator is featured with a powerful 100dB output, which is
sufficient for long cable transmission up to 1200 meters with no loss of picture
and sound.
Analog video/audio signals transmitted over existing coax cable with such high dB strength can be transmitted longer distance than the typical balun or Cat5 extender solution.
Daisy Chain Connection
Multiple of these 4-input RF modulators can be
combined using RF coax combined for broadcasting more A/V source signals and building up a
large-scale TV distribution system for class rooms, hotels, restaurant, retail stores, hospitals.
Last Channel Memory
This RF modulator will memorize user's setting for modulated channel after being powered off manually or power outage event.