Multi-Service QAM Modulator QAM6248

1.4/8/16 ASI or 8 FTA rf port per module    2.Up to 4 CAS scrambler   3.PSI/SI auto-generation and manual uploading during re-multiplexing ,upto 45 NIT table   4.MPTS output over IP and RF port

Product Details


Multi-Service QAM Modulator


QAM6248 is a new generation of Multi-functional QAM modulator, which can receive one channel of TS from IP interface or up to 16 channels of TS from ASI interfaces, and then multiplex, scramble and multi-modulate it with channel coding, as well as four channels of IP loop output. It adopts our newly developed functions such as “Module Management”, device scrambling, and channel modulation. The flexible customization and high expansibility can satisfy the user’s current and future DTV system requirements. 

The product is mainly applied to the DTV network head end room, edge of DTV backbone network, and DTV branch head end room.


Support ITU-T J.83A/B/C, output frequency range: 54MHz ~ 870 MHz

Up to 6/8/16 ASI or 8 FTA DVB-S/S2/S2X/T2/C/

ATSC/ISDB-T RF ports or GbE IP port in per chassis with Max.4 agile QAM channels out

Simultaneous outputs via MPTS over GbE IP and RF Port

Capable of working with 16QAM, 32QAM, 64QAM, 128QAM, 256QAM modulation methods

The single device offers multiple configurations, the functions of scrambling and multi-channel RF output can be released by software authorization

Support up to 4 simul-crypt CAS and DVB-CSA scrambling

Support SI/PSI auto-generation and manual uploading during re-multiplexing

Support auto-generation or manual editing of network information, as well as local network information sectors uploading

Adopt extra-large cache memory for both constant and inconstant input bit stream at ASI interface

Flexible network configuration, support input stream auto-detection and user configuration auto-saving

188/204 data packet length, and real-time display the data format

Support PID filtering, mapping and pass-through

PCR auto-correction

Bit rate range of single output data: 15.5 ~ 51.6Mbps

Output data symbol rate range of single RF channel: 4.2 ~ 7Mbaud/s

Output EPL range: 95 dBuV ~ 115 dBuV (8 channels, step size: 0.25 dB)

Support gain fine-tune and in-band EPL balancing, EPL adjustment range: -2.5 ~ 10.5 dB

Support -20dB RF test port

Tracking filter circuit design to ensure outstanding out-of-band rejection

Support device configuration import/export

Easy-to-Use System Management with Web/SNMP-based management and online remote update

Multi-lingual management user interfaces and related documents, suit for both regional and overseas markets

Support monitoring of operation temperature and power supply status.

Multi-Service QAM Modulator

Ordering Information





IP out


8x ASI

4(default), 1/2 (option)

4(default), 1/2 (option)






6x ASI,  8xFTA DVB-S2/S2X/T2/C/

ISDB-T/ATSC plus 256IP




8x ASI plus 64x IP

4(default), 1/2 (option)

4(default), 1/2 (option)


4x CI IRD plus 6x ASI



More details contact sales: 

John Pan

Sales Manager

DIBSYS Technologies Co., Ltd



Tel: +86-571-87068982   Fax: +86-571-89714580

Mobile: +86 13957196036  What's App: +86 13957196036  Skype: dibdvb


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