GV-4100EDA Interface Converter

• Categories:
• Interface Converter

• Brand:
• GOSPELL

• Weight: 5.5 Kg:
• Dimension 44.5mm (1U)*483mm*(19”)*400mm

Detailed Info

GV-4100EDA Interface Converter is the head-end equipment with broadcast professional quality and DVB standards.Its main function is to convert signals between HFC/DVB interface and SDH/ATM E3/DS3 interfaces for connecting WAN and local LAN. GV-4100AED is widely used in SDH/ATM, PDH, HFC, digital MMDS, and 8GHz systems etc
Features

• Input date bit rate: 216Mbps(max)/channel
• High accuracy PCR correction
• PID support 8 desired data filtered
• Support null packet filtered and stuffed automatically, and output bite ratio invariableness
• 188 and 204 packet auto-identify
• Configure E3 and DS3 input or output interface flexibly
• Support clarity frame structure and scramble
• LSB/MSB optional
• Bitrates renew
• Failure alarming
• Provide LCD display for local system status supervision and system parameter configuration
• Power off memory

KeyWords:

Interface Converter ,Interface Adapter ,DTV Interface Converter ,TS Converter ,ASI Converter ,DVB Converter CATV Adapter DVB Adapter Video a

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GQ-3731 COFDM Modulator

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Weight:5.5 Kg:
• Dimension 44.5mm (1U)*483mm*(19”)*400mm

Detailed Info

GQ-3731 ASI+Twin QPSK muxing COFDM modulator can receive 1 channel ASI and 2 channels QPSK signals separately or together and send to COFDM modulator after signal processing. The signals are upconverted to TV channels after IF processing so as to transmit in HFC and MMDS network. The signals can also be bypassed or modulated output by ASI interface. COFDM coding and modulation are under DVB technology criterion and DVB-T standard.

Features:

Ø Supporting EN300744 and error correction coding meets to DVB-T standard.

Ø Can work at QPSK/16COFDM/ / 64COFDM/ mode

Ø Support 6MHz/7MHz/8MHz BW

Ø Support 2K/8K carrier wave work mode

Ø FEC support 1/2,2/3,3/4,5/6,7/8

Ø Protect time interval 1/4,1/8,1/16,1/32

Ø 188/204 package self-adapting , real time display the format of input signal

Ø NIT mapping and sending function , support more than 44 frequency point NIT maps

Ø Support 8 group PID filter and re-mapping function

Ø Support amending, analysis and extraction function for PSI/SI table. Can make according order

Ø SI table can be replace and insert

Ø Input empty package filtrate and output fill in

Ø PCR correction function , can correct more than one PCR accurately from input data

Ø Real time detection and display for input system bit rate and effective bit rate

Ø Self-adapting filter circuit design, guarantee the out-band suppression performance

Ø Alarm display

Ø LCD display

Ø Support Network control interface and can implement network management remote update and maintenance(selective)

Ø Power off memory

l Technical Specifications

Ø QPSK input frequency：950 MHz-2150 MHz

Ø Symbol rate: 2 MBaud－45 MBaud

Ø QPSK input level：-79 dBm～-11 dBm

Ø ASI input>1.5 Mbps

Ø RF output frequency: 48 MHz～860 MHz

Ø RF output level：100dBuV～115dBuV(step: 0.5dB)

Ø COFDM modulation output bite rate： 2～31.67Mbps

Ø LCD display, Chinese and English menu

Ø Power off memory

Ø RJ-45 interface

KeyWords:

COFDM Modulator ,Multi-way IP QAM Modulator ,QPSK To QAM Trans Modulator ,Multiplexing DVB-T Modulator ,IP QAM Modulator

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ASI+QPSK/8PSK Multiplexing QAM Modulator GQ-3695

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Weight:5.5 Kg:
• Dimension 44.5mm (1U)*483mm*(19”)*400mm

Detailed Info
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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Multi-way IP QAM Modulator

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Weight:5.5kg:
• Dimension 44.5mm (1U)*483mm*(19”)*400mm

Detailed Info

GQ-3660B QAM Modulator, a multi-way IP modulating device, can be used in middle-end & high-end markets and OEM customers, providing customers with simple operation, concise function, high level of integration and reasonable price. It is mainly designed to be applied in the engine room and remote connecting station.
Main Features:
Supports ITU-T J.83A and B
BW range of output signals: 0.158.05MHz (roll-off factor is 0.15
or 0.186.05MHz(roll-off factor is 0.13/0.18)
Symbol rate range of output data: 0.17Mbaud/s or 0.15.36Mbaud/s
Error-correction codes completely fulfill DVB-C Standard
Modulating modes: 16QAM32QAM64QAM128QAM256QAM
Bitrate range of input data: 0.1800Mbps
Bitrate range of output data: 256Mbps (single channel)
RF range: 48-860MHz
Multi-way RF mixed output: 1~3 ways with 1~8 channels in a way
Output level range: 80dBuV100dBuV(0.5dBuV step)
188 package length and display in real time the format of input data
Large buffer memory, the IP interface support both outburst and well-distributed code stream and uniform the code to improve the code rate.
8 PID filtering function and simple mapping function
PCR correction function can correct various input data, respectively and accurately
Inputs the real time testing and displaying of the system and valid bite rate
Electronic hybrid and tracking filtering to ensure excellent RF performance
Temperature monitoring and automatic cooling to improve its performance and lengthen its service life.
Error alarming
LCD display
Network control interface realizes remote maintenance, supervision and software upgrade
Power off memory

KeyWords:

IP Modulator ,IP QAM Modulator ,CATV Modulator ,DVB Modulator ,DTV Modulator ,RF Modulator

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4-Channel QAM Modulator

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Comments:
• QAM-4 QAM Modulator is mainly used in low-end markets and OEM customers. It aims to provide customers with easy operatio

Detailed Info

QAM-4 QAM Modulator is mainly used in low-end markets and OEM customers. It aims to provide customers with easy operation, complete function, highly integration and most reasonable price.
The Modulator can input four-way TS (ASI) and outputs one-way RF signal. After data processing, the four-way TS, without multiplexing, are transferred to QAM Modulator, and are processed with intermediate frequency (four adjacent frequency with intervals of 6 MHz or 8 MHz and the center frequency is 55MHz), and then combined and up-converted and transferred to TV channels.
FEATURES:
support ITU-T J.83A & B ;
FEC fuifill DVB-C;
188/204 packet auto-identification, displaying input data format real time;
Large cache, support burst input bit stream;
support PID filtering and re-mapping;
PCR correction;
displaying of the system and valid bite rate;
Outstanding self-adapting filtering circuit designs to maximal reliability and availability;
-20dB testing interface with RF output;
Power off memory.

KeyWords:

CATV Modulator ,DVB Modulator ,DTV Modulator ,RF Modulator ,UHF Modulator ,QAM Modulator

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Multiplexing DVB-T Modulator

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Comments:
•  GQ-3731 Modulator is One-way ASI and Two-Way QPSK multiplexing COFDM Modulator, which can receive one-way ASI signal an

Detailed Info

GQ-3731 Modulator is One-way ASI and Two-Way QPSK multiplexing COFDM Modulator, which can receive one-way ASI signal and two-way QPSK signal, and input single or combined signals for processing. The processed signals are then input into COFDM modulator, in which signals are processed in intermediate frequency and then unconverted into TV channel, thus making it easy to transmit in HFC, microwave MMDS network, etc. The signals can also be modulated and output directly through ASI interface. COFDM encoding is fully up to DVB standard and its output fulfilles DVB-T Standard.
Main Features:
Up to EN300744, FEC is fully up to DVB-T standard.
Support QPSK/16QAM/64QAM modulation.
Support 6MHz/7MHz/8MHz output.
Support 2K/8K carrier operation mode.
FEC encoding: 1/22/33/45/67/8
Support protect- alteration -time 1/4, 1/8, 1/16, 1/32
188 and 204 packet auto-identify, displaying input data format real time.
NIT mapping and sending, support 44 NIT mapping
8 groups PID filtering and re-mapping
Various PSI/SI information tables pick-up, parse and modification
SI information replacement and insertion
Input data null packet filtering and output data stuffing
PCR correction function can correct various input data, respectively and accurately
Show and inspect system input bit rate and valid bit rate real-time
self-adapting filtering circuit designs to maximal reliability and availability
Error alarming
LCD display
Network interface introduces remote maintenance, supervision and software upgrade
Power off memory

KeyWords:

CATV Modulator ,DVB Modulator ,DTV Modulator ,DTV COFDM Modulator ,Multiplexing Modulator ,Multiplexing COFDM Modulator

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