MODEL : GVHM-1000 (Low Latency 150ms)
FEATURES
본 기기는 고화질 아나로그 신호 (Component) 및 디지털 신호 ( HDMI ) 를 입력 받아 MPEG-2,영상포맷과 Dolby Digital AC-3, MPEG-1 음성포맷 방식을 선택 수용하는 Encoder 와 국내 지상파 전송방식인 ATSC 방식 으로 변조 RF 신호로 송출하는 8VSB 변조기를 결합한 0.15초(150mS) Low Latency Time HD Encoder Modulator 이다.
PERFORMANCE SPECIFICATION
◎ RF출력
•
주파수대역 : 54 ~870 MHz
•
임피던스 : 75 Ω
•
레벨 : 55 ± 5 dBmV
•
레벨조정범위 : 0 ~ -31 dB
•
신호대잡음비 : ≤ 37 dB (EQ OFF)
: ≤ 42 dB (EQ ON)
•
위상잡음 : ≤ VHF -103 dB@20KHz
: ≤ UHF -103 dB@20KHz
•
스프리어스 : ≤ -63 dB
•
반사손실 : ≤ 17 dB
•
주파수편차 : ± 5 ppm
•
PCR 지터 : ≤ ± 30 ns
•
주파수 Response : ± 0.5 dB
•
Group Delay : ± 5 nS
•
인접채널 Adjacent : ≤ 45 dB
◎ 영상인코딩
•
영상 입력 : HDMI, Component, Composite
•
압축방식 : MPEG-2 MP@HL/MPEG-4AVC(H.264)
•
색차 포맷 : 4:2:0 4:2:2
•
인코딩 레이트 : 1~80MBps
•
인코딩 지연시간 : 0.15초(150mS)이상
•
해상도 : 1080i × 1920, 1440, 1280, 960 / 720P × 1280, 960
◎ 음성인코딩
•
압축방식 : Dolby Digital AC-3 & MPEG-1 Layer Ⅱ,
Pass Through
•
샘플추출물 : 48 KHz(샘플 레이트 컨버터 내장)
•
압축률 : 32 ~ 448 KBp
◎ Power
•
AC220V
SIZE
•
19“ Rack Mount 1Unit Size
MODEL: GVHM-1000 (Low Latency 150ms)
FEATURES
This device receives high-definition analog signals (Component) and digital signals (HDMI) and selects MPEG-2, video format, Dolby Digital AC-3, MPEG-1 audio format, and an Encoder, and ATSC, a domestic terrestrial transmission method. It is a 0.15 second (150mS) Low Latency Time HD Encoder Modulator that combines an 8VSB modulator that transmits a modulated RF signal in this way.
PERFORMANCE SPECIFICATION
◎ RF output
•
Frequency band: 54 ~ 870 MHz
•
Impedance: 75 Ω
•
Level: 55 ± 5 dBmV
•
Level adjustment range: 0 ~ -31 dB
•
Signal-to-noise ratio: ≤ 37 dB (EQ OFF)
: ≤ 42 dB (EQ ON)
•
Phase noise: ≤ VHF -103 dB@20KHz
: ≤ UHF -103 dB@20KHz
•
Spurious: ≤ -63 dB
•
Return loss: ≤ 17 dB
•
Frequency deviation: ± 5 ppm
•
PCR jitter: ≤ ± 30 ns
•
Frequency Response: ± 0.5 dB
•
Group Delay : ± 5 nS
•
Adjacent channel: ≤ 45 dB
◎ Video encoding
•
Video input: HDMI, Component, Composite
•
Compression method: MPEG-2 MP@HL/MPEG-4AVC (H.264)
•
Color difference format: 4:2:0 4:2:2
•
Encoding rate: 1~80MBps
•
Encoding delay time: 0.15 seconds (150mS) or more
•
Resolution: 1080i × 1920, 1440, 1280, 960 / 720P × 1280, 960
◎ Voice encoding
•
Compression method: Dolby Digital AC-3 & MPEG-1 Layer Ⅱ,
pass through
•
Sample extract: 48 KHz (built-in sample rate converter)
•
Compression rate: 32 ~ 448 KBp
◎ Power
•
AC220V
SIZE
•
19“ Rack Mount 1Unit Size