User guide
43 
Chapter 3 – Creating Presentations  
4.  Specify channel up and channel down event triggers if you would like viewers to be able to flip through channels 
like a traditional cable box. 
5.  Check the Overscan box if you would like to apply overscan settings to the RF video input. 
Tuner Scan 
You can use this state to perform a channel scan of the cable source while an interactive presentation is running. Use a 
Media End event to exit this state once the channel scan concludes. If you use another interactive event (e.g. Serial Input, 
UDP Input) to exit the Tuner Scan state before it concludes, the scan will be canceled and the results will not be written to 
the player. 
•  Channel Map: Select QAM, ATSC, or ATSC and QAM 
(consult your service provider for details). 
•  Modulation Type: Select QAM 64, QAM 256, or QAM 64 
and QAM 256 (consult your service provider for details). 
•  First RF Channel (optional): You can choose to limit the 
range of the channel scan by selecting the first channel to 
scan. 
•  Last RF Channel (optional): You can choose to limit the 
range of the channel scan by selecting the last channel to 
scan. 
Note: Each channel takes approximately one second to scan. Specifying upper and lower limits will reduce the amount 
of time it takes to perform the scan. You should only use these two options if you are familiar with the channel map of 
the cable source. 










