SDT ARK ECHO

Service in an answer to market needs. ARK-ECHO provides a complete digital coverage solution with echo cancelation to make sure the area is not receiving dual signals by canceling system feedback between the transmit and receive antennas. The innovative software defined technology with features provides useful tools to manage your Single Frequency Network.
ARK-ECHO Digital signal processing algorithms offer a superior cancellation; it means that stable operation can be achieved even with a feedback (undesired) signal that is larger than the incoming (desired) signal.
ARK-ECHO offer one of the lowest latency of the industry (less than 10 µS); a low time delay allows the receiver to deal with two different signals (main transmitter and ARK-ECHO) without allowing them to interfere with each other and degrade receptionThe Screen Service’s state of the art pre-correction plus the compact size (125W rms ATSC/ATSC-MH in 2RU) is designed to perfectly satisfy the critical need of an ATSC-MH network to have full coverage and expanded indoor penetration; all these features makes the ARK-ECHO unique on its class.

How it works?
The ARK ECHO receive an off-air DTV signal to amplify it; down-convert it to an intermediate frequency (IF) for filtering and equalization; and up-convert it using its fully agile local oscillator on exactly the same frequency with exactly the same data as the received signal.