Contemporary Research
11
2
32-MTA Mono TV Tuner
Character Generator Commands
The CG option is no longer available for the 232-MTA, this section is provided for reference on earlier models
with the option installed. The CG supported an on-screen display that is 28 columns (characters) across by 11
rows (lines) down. An imaginary cursor represents the current screen write position. Writing text automatically
increments the cursor to the next character space. The character text is always white.
TM=<label mode>
Sets on-screen channel label mode.
0=None
1=Alpha only
2=Numeric only
3=Both alpha and numeric labels
Channel labels are displayed overlaying the video in the top-left corner
of the screen for about 10 seconds after each channel change.
Example:
'>TM=2' Sets channel mode to display channel number only.
TN=<channel>,<alpha label>
Sets the alpha label for the specified channel. Alpha labels may be up
to 8 characters and are displayed on screen when a channel changes, if
alpha labels are enabled by the 'TM' command.
Example:
'>TN=8,ABC' Sets the alpha label for channel 8 to be 'ABC'.
TN=0,0
Clears (blanks) all stored alpha labels
TC
Displays the current channel label on screen for about 10 seconds
DG=<row>,<column>
Moves the cursor to the specified row and column position. If row is 0,
then row will not be changed, and if column is 0, then column will not
be changed.
E7=<column>
Moves cursor to specified column.
E8=<row>
Moves cursor to specified row.
EA
Clear on screen display. Also, moves cursor to column 1 and row 1.
EB
Moves cursor down to the first column of the next row (like a carriage
return plus line feed).
DC
Clear on screen display from the cursor to the end of the screen.
Cursor position does not change.
DB
Clear on screen display from the cursor to the end of the current line.
Cursor position does not change.
E9=<num spaces>
Clears the specified number of spaces. Cursor position does not change
DM
Clears on-screen display. Also, moves cursor to column 1 and row 1,
unblanks screen if it was blanked, and cancels an active ‘KC’ or ‘KT’
keypad command
DN<text>
Clears on screen display, then writes the specified text to the display
starting at column 1 and row 1.
DW<text>
Writes the specified text to the display starting at current cursor
position.
DQ=<time>
Sets screen timeout to specified time in seconds. If time is 0 or 255,
any text on the screen will persist indefinitely, or until cleared.
