GSS HDTV 1000 T, Assembly Instructions Manual

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- 10 - HDTV 1000 T / HDTV 1001 T
Station filter
Ê ˜`ˆÛˆ`Õ>Ê ÃÌ>̈œ˜ÃÊ V>˜Ê LiÊ `iiÌi`°Ê / ˆÃÊ Ài`ÕViÃÊ Ì iÊ `>Ì>Ê À>ÌiÊ >˜`]Ê Vœ˜Ãi -
µÕi˜ÌÞ]ÊÌ iʜÕÌ«ÕÌÊÃޓLœÊÀ>Ìi°Ê``ˆÌˆœ˜>ÞÊÃÌ>̈œ˜ÃʜvÊÌ iÊ`ˆvviÀi˜ÌÊÌÀ>˜Ã«œÀÌÊ
streams can be assembled to a new transport stream.
Stuffing
Ê / iÊÌÀ>˜Ã«œÀÌÊÃÌÀi>“ʈÃÊ«>``i`ÊÕȘ}ÊÜ >ÌʈÃʎ˜œÜ˜Ê>ÃÊâiÀœÊ`>Ì>°Ê/ ˆÃÊi˜ÃÕÀiÃÊ
a steady and constant output data rate.
Changing the Transport stream and ORGNET-ID
The transport stream ID can be changed. If the stations of a transponder are
돈Ìʈ˜ÌœÊÌ iÊÌÀ>˜Ã«œÀÌÊÃÌÀi>“ÃʜvÊÌ iÊV >˜˜iÊÃÌÀˆ«ÃÊ»»Ê>˜`Ê» »]ʜ˜iʜvÊÌ iÊLœÌ Ê
transport streams a new identification must be allocated to realise the channel
search of the settop boxes connected without mistakes.
If the ORGNET-ID is changed a new NIT must be generated.
Changing the NIT
The transport stream contains data in the form of tables which the receiv-
ers evaluate and require for convenient use. The TPS module can adjust the
“Network Information Table” (NIT) to accommodate the new station data. The
“NIT” contains data which is required by the set-top boxes connected to the
cable network for the automatic search feature.
Changing the operator ID (CAT)
Some network operators transmit an operator ID in the data stream (e.g.
visAvision). By changing the CAT the operator ID can be adjusted to the cur-
rent demands.