Tektronix MTG100 - Manual (Page 65)

Pull-down Menus
3Ć6
MTG100 & MTG300 MPEG Generator User Manual
OUTPUT PullĆdown Menu
The OUTPUT pull-down menu contains commands for defining output
parameters. Table 3-4 describes the commands available in the OUTPUT
pull-down menu.
Table 3Ć4: OUTPUT pullĆdown menu commands
Command Description
Packet Size Sets the packet size (in bytes) for the stream. You can set the packet size to
188 (188 + 0), 204 (188 + 16), 208 (188 + 20) bytes, or Non TS.
A file downloaded in Non TSstandard is always output in Non TSstandard.
If you change the packet size setting, the MPEG generator prompts you to
change the clockĆrate setting. If you select Yes, the Clock dialog box
appears to have you confirm or change the clockĆrate setting. Refer to Clock
Dialog Box on page 3Ć6 for more information.
Clock... Sets the clock rate of the transport stream output. When you select this
menu item, the Clock dialog box appears. Refer to Clock Dialog Box on
page 3Ć6 for more information.
Psync Sets the format of the PSYNC signal output from the ECL/TTL/LVDS OUT
connector. You can select Normal or MĆTMCC. For Normal, a single pulse
signal is output at the start point of each packet. For MĆTMCC, a single
pulse is output at the start point of the SF appearing every 204 X 48 X8
bytes. You cannot set this parameter for the Non TSstandard file.
Level Sets the signal level for the ECL/TTL/LVDS OUT connector on the rear
panel. You can select TTL, ECL*, or LVDS.
Note: For ECL*, the signal level is less than the typical ECL signal level.
Refer to ECL/TTL/LVDS output in Table AĆ2 on page 0Ć5.
Interface Use this command to set the output format for the ECL/TTL/LVDSOUT
connector on the rear panel. You can select Parallel or Serial formats.
ASI Format Sets the insertion mode for the ASI OUT connector on the rear panel. You
can select Packet or Burst insertion modes. For the Packet mode, valid data
is output per transport stream packet. For Burst mode, the valid data is
output in burst.
When you select the Clock... command from the OUTPUT pull-down menu, the
Clock dialog box appears as shown in Figure 3-2. Use the arrow buttons to
highlight the desired parameter, and then use the rotary knob or hexadecimal
keypad to set values. Press the OK bezel button to apply changes.
Table 3-5 describes the Clock dialog box parameters and Table 3-6 describes the
Bezel menu commands associated with the dialog box.
Clock Dialog Box
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