beautypg.com

10 operation – Drake MQM6000L Multiplexing QAM Modulator User Manual

Page 10

background image

10 Operation

OPERATION

MULTIPLEXING SIX INPUTS

to use the mqm6000L to multiplex six inputs, proceed as follows:

1) Connect the six mPeG2 SPtS or mPtS signal sources to the six ASi input connectors on the rear of the
mqm6000L.

2) Plug the power cord from the unit into the power source.

3) follow the instructions in the previous programming section to select the desired mPeG programs. (See
the previous section for details.)

4) in the oUtPUt CHANmAP menu, select the output channel format (bRoADCASt, CAtv, HRC, or iRC).

5) from the oUtPUt CHANNeL menu, select the desired output channel number.

6) from the Rf LeveL menu, select the desired output level. Depending on the diagnostic equipment
available, you may want to select CW from the oUtPUt foRmAt menu to balance the output with the outputs
of the other inputs to the cable system. When finished balancing the system, select NoRmAL from this menu.

7) from the qAm moDe menu, set the qAm modulator to qAm-256b for use in a DigiCipher ii environment.
if Dvb, use qAm-256A instead.

8) in the qAm SymRAte menu, select PReSet.

9) Set the oUtPUt foRmAt to NoRmAL if you have not already done so