- Categories:
- Digital Modulator
- Brand:
- GOSPELL
- Weight:5.5 Kg:
- Dimension 44.5mm (1U)*483mm*(19”)*400mm
GQ-3695 ASI+QPSK/8PSK Multiplexing QAM Modulator is a multifunctional digital headend equipment, which receives one way ASI and one(or two) way DVB-S/S2 Satellite Signals, multiplexing the signals and then outputing the multiplexed RF signals. This Modulator is mainly used in digital headend machine room to convert the satellite signal and local program stream into digital singal that can be received by STBs in DTV Cable Network. Main Features: l Supports standard DVB-S and DVB-S2 inputs l Supports ITU-T J.83A&B l Supports QPSK, 16QAM, 31QAM, 64QAM, 128QAM, 256QAM l 188/204 packet auto-identification, displaying the format of input data in real time; l large buffer memory, the ASI interface supports both outburst and well-distributed code stream and uniform the code to improve the code rate. l NIT mapping and sending function , supports more than 45 frequency point NIT maps l 8 PID filtering and re-mapping l Support amending, analyzing and extracting function for PSI/SI table. Can make according order l SI table can be replaced and inserted l Input empty package filtrate and output fill in l PCR correction function , can correct more than one PCR accurately from input data Real time detection and display for input system bit rate and effective bit rate l Self-adapting filter circuit design, guarantee the out-band suppression performance l -20dB RF Test Port and IF Output Port l LCD display l Power off memory Technical Specifications Input Date Bit rate: 1.5~51.6Mbps Input RF Frequency: 950~ 2150MHz Input RF Level: -69~ -25dBm RF Output Specification: Out RF Frequency: 48~860MHz Output Date Bit rate: 2~56Mbps Output BW (Band Width): 1.15~8.05MHz (roll-off factor is 0.15) Output Symbol Rate: 1~7Mbaud/s Output Level: 100dBuv~115dBuv Refection Loss: ≥15dB IF Specification: Central Frequency: 36MHz/35.25/36.15/44MHz selectable IF BW: ≤8MHz Refection Loss: ≥18dB MER (Modulating Error Rate): ≥44dB SNR: ≥50dB Output Level: 98±1dBuv (rms)
KeyWords:
Multiplexing QAM Modulator ,Multiplexing Modulator ,QPSK To QAM Modulator ,8PSK To QAM Modulator ,CATV Modulator,DVB Modulator
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