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MTG100 & MTG300 MPEG Generator User Manual

Table 3Ć5: Clock dialog box parameters (Cont.)

Parameter Description

TS Bit Rate Sets the clock rate for the transport stream output. You can enter the clock

rate using one of the following methods (the first method provides greater

clockĆrate precision):

D Enter values into the numerator and denominator fields, and then press

the Ratio Bezel button. The MPEG generator will then calculate the clock

rate based on the ratio of the numerator and denominator values.

D Enter a value into the clock rate field, and then press the Immediate Bezel

button. The MPEG generator will then calculate the numerator and

denominator fields based on the clock rate.

When you use the Ext Pclk or Ext Sclk mode, set the clock rate to the same

value as the input clock signal. If you do not set the value properly, the PCR

and PTS/DTS values are not updated correctly. Also, the PLL may not lock

at the worst.

Fixed ES rate Sets whether elementary stream rate is fixed or not. When you set it to ON,

the elementary stream rate becomes constant regardless of the clock rate

setting.

If you set it to ON, You cannnot set the output clock rate (TS Bit Rate) more

than the data rate set when the file was downloaded.

Table 3Ć6: Bezel menu commands for the Clock dialog box

Command Description

Ratio Sets the MPEG generator to calculate the output clock rate based on the

divided ratio entered in the numerator and denominator fields of the Clock

dialog box.

Bit Rate Sets the MPEG generator to calculate the dividedĆratio numerator and

denominator values based on the output clock rate. In this mode, numeric

rounding may occur depending on the calculated value.

Default Resets all of the dialog box settings back to the factory default settings. The

default clockĆrate value is calculated based on the Packet Size setting in the

OUTPUT menu.

Cancel Cancels any setting changes and closes the dialog box.

OK Enables all setting changes. When you apply setting changes, data output

from the MPEG generator is stopped. You must restart the MPEG generator

output for the setting changes to appear.

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Tektronix MTG100 Bedienungsanleitung Seite 67