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A test Transport Stream for the example flow graph
(8 Msyms/s and 7/8 code rate) is available here:

http://www.w6rz.net/advdvbs78.ts

It is 170,950,844 bytes.

This stream can also be used at:

14 Msyms/s 1/2 code rate
10.5 MSyms/s 2/3 code rate
9.333333 MSyms/s 3/4 code rate
8.4 Msyms/s 5/6 code rate

The equation for calculating the correct Transport Stream bit-rate is:

TS bit-rate = symbol rate * 2 * code rate * (188 / 204)