Operating the Equipment Locally – Main Menu Option 1: Quick Setup Menu
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Reference Guide: SM6610, SM6615, SM6620 and SM6625 Satellite Modulators
ST.RE.E10152.2
Quick Setup Menu Option 2: Packet Size
This parameter indicates to the modulator the expected packet size, either
204 or 188 bytes.
Packet Size : Current Value= "188 bytes"
1 204 bytes
2 188 bytes
Quick Setup Menu Option 3: Rate Adapt
When Rate Adapt is set to ON, rate adaptation is enabled; null packets
are either inserted into or removed from the transport stream, and PCR
correction is performed. When Rate Adapt is set to OFF, rate adaptation
is disabled and the modulator operates in data-derived clocking mode in
which the output symbol rate is locked to the input data rate.
Rate Adapt : Current Value= "OFF"
1 OFF
2 ON
Quick Setup Menu Option 4: Bit Rate
Bit Rate indicates to the modulator the expected transport stream input
bit-rate. Its range is variable, dependent upon other parameters and
options. When a Bit Rate value is entered, the corresponding value of
Symbol Rate is automatically calculated and set, dependent upon the
Modulation, FEC Rate and Packet Size settings.
Bit Rate : Current Value= "27.647059" Mbit/s
Enter New Value 0.276471 to 91.235294 in Mbit/s,
or press Enter
Quick Setup Menu Option 5: Symbol Rate
When Rate Adapt is set to OFF, Symbol Rate sets the nominal symbol
rate of the modulator. The actual symbol rate value is locked to the
transport stream input data-rate provided that the latter is within the
tracking range of the input de-jitter PLL (see Section 7.3.2, Transport
Stream De-jittering). When Rate Adapt is set to ON, Symbol Rate sets
the actual symbol rate of the modulator. See also Quick Setup Menu
Option 3: Rate Adapt.
The range of Symbol Rate is 1-48 Msymbols/s as standard, or
0.2-66 Msymbols/s with the Extended Symbol Rate option.
Symbol Rate : Current Value= "20.000000" Msym/s
Enter New Value 0.200000 to 66.000000 in Msym/s,
or press Enter
