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Equalization Digital On-Channel Repeater Part 1 : Laboratory Test Results  

Park Sung Ik (Digital Broadcasting Research Division, ETRI)
Lee Yong-Tae (Digital Broadcasting Research Division, ETRI)
Eum Homin (Digital Broadcasting Research Division, ETRI)
Seo Jae Hyun (Digital Broadcasting Research Division, ETRI)
Kim Heung Mook (Digital Broadcasting Research Division, ETRI)
Kim Seung Won (Digital Broadcasting Research Division, ETRI)
Lee Soo-In (Digital Broadcasting Research Division, ETRI)
Publication Information
Journal of Broadcast Engineering / v.10, no.2, 2005 , pp. 210-220 More about this Journal
Abstract
This paper presents and analyzes laboratory test results of Equalization Digital On-Channel Repeater (EDOCR) using ATSC(Advanced Television Systems Committee) terrestrial digital TV broadcasting system. The EDOCR laboratory test, which is done at CRC(Communications Research Centre) Canada, is classified to receiver test, transmitter test, and synchronization test between transmission and reception frequencies. The receiver part includes feedback signal, random noise, single echo, multi-path ensemble, and NTSC/DTV interference test. The transmitter part includes out-of channel emission, quality of transmitting signal, and phase noise test. By the field test results, the receiver part of the EDOCR eliminates average 5.5 dB of feedback or single echo signal in range of 0 to 11 ${\mu}s$ and has average 18.6 dB at TOV(Threshold of Visibility) under random noise environment. Also, the transmitter part of the EDOCR satisfies the specification of US FCC(Federal Communications Commission), and frequency difference between transmitter and receiver is zero.
Keywords
ATSC; SFN; EDOCR;
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  • Reference
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