DRAKE MQM6000L Instruction Manual - Page 5

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RF OUTPUT

GENERAL DESCRIPTION

The R.L. Drake model MQM6000L is a professional quality,

digital headend transcoder that receives up to six multipro-

gram transport streams via six BNC, ASI inputs. When six

streams are input, the MQM6000L then multiplexes one

program from each input and applies the result to the QAM

modulator and up converter for output.

A program filter is provided to allow selection of the one

desired program from each input. Other programs in the

incoming streams are dropped.

The MQM6000L offers a +40 dBmV output upconverter with

phase noise reduced to a level that is compatible with QAM

modes up through 1024QAM.

The MQM6000L can be used with the Drake Digital

Headend Remote Control Software, version to be an-

nounced, for setting up the program filtering, remote

controlling, or remote monitoring of operating parameters.

This program can also be used to download new firm-

ware into the unit if that ever becomes desirable.

The MQM6000L operates in a fixed output clock mode and

processes null packets when required to maintain the set

fixed clock rate. PCR correction is included.

ENTER

QAM OUTPUT

0.020 Mbits/S

ASI INPUTS

General Description

MQM6000L Multiplexing QAM Modulator

PROGRAM FILTERING

A 'Select Program' function is provided to allow the

operator to select which MPEG program present on each of

the six input streams is to be included in the output

multiplex.

OUTPUT

The RF output is always QAM regardless of whether the

input is VSB or QAM and the built-in agile upconverter

provides +40 dBmV output.

AC POWER

120 VAC 60 Hz

15 WATTS

RS232

OUT