HEQ-1000 ATSC to QAM Modulator
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작성자 플래너스 댓글 0건 조회 550회 작성일 21-02-08 10:34본문
HEQ-1000은 ATSC(8VSB) 표준 규격에 부합하는 국내 디지털 지상파 신호를 QAM으로 변조하여 송출하는 장비로서 16, 32, 64, 128, 256 QAM 및 ITU-T J.83 Annex A/B/C에서 요구하는 변조 모드를 모두 지원합니다. 또한 216 ~ 223 까지의 PRBS 패턴을 자체 발생시키는 기능도 지원합니다.
GENERAL FEATURES
- Standard ATSC (A.53) demodulation
- Digital terrestrial RF input frequency (54 ~ 864 MHz)
- Available at low RF input level (minimum 35 dBuV)
- Advanced QAM modulation
- Supports 16 / 32 / 64 / 128 / 256 QAM modulation
- ITU-T J.83 Annex A/B/C compliant
- Standard Digital RF output (54 ~ 864 MHz) with level of 0 dBm
- Automatic system error monitoring & Re-activation
- Front panel control & Optional Ethernet control
Input Specification
- Standard ATSC(8VSB) RF
- RF Input Frequency : 54 ~ 864 MHz
- RF Input Level : 35 ~ 85 dBuV
Data Processing
- Advanced QAM modulation (ITU-T J.83)
- Symbol rate : up to 7.6 Msps
- FEC : Annex A/C (DVB-C), Opencable
- Interleaving : 188, 204 Reed-solomon
Physical and Power
- Dimension : 485mm(L) x 45mm(H) x 320mm(D)
- Weight : 3 kg
- Input Voltage : AC100 ~ 240V, 50/60Hz -
- Power Consumption : 20 Watt
Output Specification
- Dual QAM RF output
- F-type connector with 75 ohm
- Output Frequency : 54 ~ 864 MHz
- RF Output Level : 0 dBm +/- 5 dB
- RF TP -20 Level : – 20 dBm +/- 5dB
- Bandwidth : 6/7/8 MHz
- Spurious : less than – 60 dB
- Return Loss : more than 10 dB @ 75 ohm
- Phase Noise : Typical – 98 dBc/Hz @ 20 KHz
- Group Delay Time : +/- 50 ns
- RF Level Control Step : 1 dB
- Attenuation Level : max. 19 dB
- Signal to Noise : Typical 32 dB at RF
GENERAL FEATURES
- Standard ATSC (A.53) demodulation
- Digital terrestrial RF input frequency (54 ~ 864 MHz)
- Available at low RF input level (minimum 35 dBuV)
- Advanced QAM modulation
- Supports 16 / 32 / 64 / 128 / 256 QAM modulation
- ITU-T J.83 Annex A/B/C compliant
- Standard Digital RF output (54 ~ 864 MHz) with level of 0 dBm
- Automatic system error monitoring & Re-activation
- Front panel control & Optional Ethernet control
Input Specification
- Standard ATSC(8VSB) RF
- RF Input Frequency : 54 ~ 864 MHz
- RF Input Level : 35 ~ 85 dBuV
Data Processing
- Advanced QAM modulation (ITU-T J.83)
- Symbol rate : up to 7.6 Msps
- FEC : Annex A/C (DVB-C), Opencable
- Interleaving : 188, 204 Reed-solomon
Physical and Power
- Dimension : 485mm(L) x 45mm(H) x 320mm(D)
- Weight : 3 kg
- Input Voltage : AC100 ~ 240V, 50/60Hz -
- Power Consumption : 20 Watt
Output Specification
- Dual QAM RF output
- F-type connector with 75 ohm
- Output Frequency : 54 ~ 864 MHz
- RF Output Level : 0 dBm +/- 5 dB
- RF TP -20 Level : – 20 dBm +/- 5dB
- Bandwidth : 6/7/8 MHz
- Spurious : less than – 60 dB
- Return Loss : more than 10 dB @ 75 ohm
- Phase Noise : Typical – 98 dBc/Hz @ 20 KHz
- Group Delay Time : +/- 50 ns
- RF Level Control Step : 1 dB
- Attenuation Level : max. 19 dB
- Signal to Noise : Typical 32 dB at RF
- 이전글HQ-100 QAM Modulator 21.02.08
- 다음글HER-6000DA Multi-Channel 8VSB Remodulator & D to A Modulator 21.02.08
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