Outline:
JXDH****2 QAM Modulator, is the main equipment CATV digital
head-end, receiving DVB transport streams which come from coder,
multiplexer, DVB gateway, scrambler, video server etc. It does
signal processing like RS coding, convolution interleaving and QAM
modulating, providing IF/RF output.
Features:
*Complying DVB standard signal channel coding.
*Support full range variable data rate, bandwidth and QAM mode Data
stuffing
*Super buffer (optional),anti-burst code stream
*PID filter, re-reflection, PSISI information synchronal updating
possible.
*Automatically code stream stuffing and empty pocket deleting.
*Code stream real-time monitoring, empty pocket filtering
*Support NIT table modifying
*Real-time code stream monitoring
*PCR adjusting, output symbol rate variable:**7Ms/s
*Fixed or agile channel output;
*Providing ASI and Ds3 input port and output port (optional)
*Providing RF output monitoring port**0dB
*Local or Remote administration possible.
*LCD display, flexible in operating
*High reliability design, stable in running
Specifications:
|
Modulating mode
|
***********6 QAM
|
|
Symbol rate
|
3~7Mbaud/s
|
|
Correction coding
|
RS Coding**4
|
|
Input data rate
|
1.5~*1Mbps
|
|
Channel data rate
|
*0~*6Mbps
|
|
MER
|
≥*3dB
|
|
BER
|
1´***8
|
|
Input interface
|
|
ASI
|
DVB standard
|
|
SPI
|
|
IF output
|
|
IF Frequency
|
OptionalIF
|
|
RF Frequency
|
**0~**2MHz
|
|
Output Level
|
≥**5dBmV
|
|
Output Level adjustale
|
**0dBmV
|
|
Impedance
|
*5Ω
|
|
Output return loss
|
≥*2
|
|
Miscellaneous
|
|
Dimension
|
*4mm´**2mm´**0mm
|
|
Temperature
|
0 ~ *5(Operating) **0 ~ *0(Storage)
|
|
Power
|
**0VAC±*0%,*0Hz,*5W
|
Warm
tips:
Specification and picture are for reference only, the
actual item is the standard, welcome to contact our seller.
