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Use the Channel Management dialog to manage
all digital TV and data channels for the currently selected service. All channels
are listed in the Channel list, where they can be edited, deleted or
tested for signal reception. Use Search and Scan to automatically update
the entire Channel list as well as TV4PC's program listings.
Rather than updating channels manually, Search and Scan automatically updates all of the programs on TV4PC's program listings and updates the entire Channel list, beginning at Start Frequency (the frequency of the first channel) and ending at End Frequency (the frequency of the last channel). To perform a Search and Scan:
Start Frequency, End Frequency, and Step Size
The Start Frequency is the frequency of the first channel on the service (or you can enter an arbitrary frequency that marks the beginning of the scan). The End Frequency is the frequency of the last channel on the service (or you can enter an arbitrary frequency marking the endpoint of the scan). Step Size is the scan increment. Search and Scan will scan every increment between the Start Frequency and the End Frequency.
If you do not wish to use default values, consult your service provider. Find the highest and lowest channel frequencies for your service and enter them as the Start Frequency and End Frequency.
Symbol Rate
The Symbol Rate indicates the speed of the channel's signal. If you do not wish to use default values, consult your service provider.
Modulation
Modulation is the process of converting digital information into a channel signal. This can be done many ways: select the method used by your service provider.
Scan Progress Indicators
After Search and Scan is clicked, the Scanning Status textbox describes the events of the scan as they happen in terms of a channel's PIDs (packet ID codes) or updating tables such as the NIT (network information table), PAT (program association table), PMT (program management table) or CAT (conditional access table). The Scan Progress bar displays the progress of the entire scan. The Channel Progress bar displays the progress of the scan relative to the single channel currently being scanned.
Any individual channel can be tested for signal reception by clicking Edit on the Channel Management dialog. New channels can be tuned and manually be added to the Channel list.
To manually add a channel to the list or to edit an existing channel, you will need to know the frequency, symbol rate, and modulation of the channel that you want to add. (If you do not have these settings, use Search and Scan.)
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