QAM Modulator

JXDH-6302 QAM Modulator Outline: JXDH-6302 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.Complying DVB standard signal channel coding.

Features:

* Support full range variable data rate, bandwidth and QAM mode Data stuffing * super buffer (optional),anti-burst code stream * PID filter, re-reflection, PSI,SI 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:1-7Ms/s; * Fixed or agile channel output; * Providing ASI and Ds3 input port and output port (optional) * Providing RF output monitoring port(-20dB); * Local or Remote administration possible. * LCD display, flexible in operating * High reliability design, stable in running

Specifications:

* Modulating mode: 16,32,64,128,256QAM * Symbol rate:3~7Mbauds * Correction coding: RSCoding188/204 * Input data rate:1.5~51Mbps * Channel data rate: 20~56Mbps * MER:>33dB * BER:0

* Input interface: ASI/BER:DVB standard

* Output

IF Frequency: 36/36.15/36.65/70MHz(Optional) RF Frequency: 47~870MHz Output Level: ≥115dBμV Output Level adjustable: 75Ω0-16dB(0.5dB stepping) Impedance: 75Ω Output return loss: ≥12dB

* Dimension: 44mmx482mmx410mm

* Temperature: 0-45℃(Operating) -20-80℃(Storage)

* Power: 220VAC±10%,50Hz,25W