PID and PSIP Information
PID : Packet Identifier
- Used in program header to identify different programs in a stream
- There are separate PIDs for Audio stream info and Video stream info
- PIDs do NOT affect the channel number displayed on screen
- PIDs have no relation to what RF channel the programming is on
- Programs from different sources can have SAME PIDs
- EX: two different programs coming from satellite
- If both programs are multiplexed, the multiplexer typically changes one set of PIDs so they are not the same
- This change will NOT impact anything the customer sees
- Two programs on different QAM streams can have same PIDs with no impact
PSIP : Program and System Information Protocol Allows user to set Virtual Channel Numbers for each program
- PSIP tables can contain WHOLE numbers up to 4 digits (2 – 9999), like CATV channels
- PSIP tables can be formatted with Major/Minor channel numbers like Terrestrial channels (7-1, 7-2, etc.)
- PSIP tables are INDEPENDENT of physical RF channel the content is on.
QuestTel shall have no liability for any error or damage of any kind resulting from the use of this document.