Tektronix TG700, Руководство пользователя

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AG7 Audio Generator Module
Audio Click.
Inserts audio clicks in the selected audio channel. The audio tone, if
any, is turned off for an interval around the audio click. Use the left ( ◄ ) or right
( ► ) arrow button to make the selection. The choices are OFF , 1 sec , 2 sec , 3 sec ,
and 4 sec . Press the ENTER button to enable the selection.
Audio Click becomes valid when you select 1 sec to 4 sec for the Audio Click
rate. When Audio Click is valid, Audio Tone is turned off for 0.25 seconds around
the click. For example, if you select
3 sec for the click rate, the audio tone will be
output for 2.75 seconds, and silent for 0.25 seconds; the click occurs during this
silence. When Audio Click is
OFF , the Audio Tone selected in the FREQUENCY
menu is output continuously. Audio Click makes it easy to identify any of the
four output channels.
AUDIO TIMING Submenu Use this menu to adjust the timing offset of the audio signal outputs relative to
the internal reference signal (frame reset signal). The following
fi gure shows the
AUDIO TIMING submenu.
Figure 3-3: AG7 module AUDIO TIMING submenu
Use the left ( ◄ ) or right ( ► ) arrow button to change the value. You can set the
value from -160 ms to +160 ms in 1 ms steps. A minus timing value is set as
Delay and plus is set as Advance .
NOTE.
You can reset the timing offset to zero by pressing the left ( ◄ ) or right ( ► )
arrow buttons simultaneously.
Factory Default Settings
The following table shows the factory default settings for the AG7 module.
These settings are recalled when you select
Factory Default from the PRESET :
RECALL menu item in the mainframe main menu.
Table 3-1: AG7 module factory default settings
Menu item name Settings
CHANNEL 1 to CHANNEL 8
Frequency 1000 Hz
Amplitude -20.0 dBFS
Audio Click OFF
RESOLUTION 20 bits
AUDIO-VIDEO SYNC
Free Run
TG700 TV Signal Generator Platform User Manual 3–5