Operating the Equipment Locally
Instruction Manual: evolution 5000 E5500 Mobile Contribution Encoder
Page 3-23
ST.TM.E10033.3
Given the above information, the Tx bandwidth, FEC rate, symbol rate and
bit-rate are related according to the following equations:
Given bandwidth and FEC rate:
1.28
Bandwidth
Rate
Symbol
=
Rate
FEC
204
bytes)
(204
Length
Packet
m
Rate
Symbol
rate
-
Bit
×
×
×
=
where:
m = 2 for QPSK
Given symbol rate and FEC:
28
1.
Rate
Symbol
Bandwidth
×
=
Rate
FEC
204
bytes)
(204
Length
Packet
m
Rate
Symbol
rate
-
Bit
×
×
×
=
where:
m = 2 for QPSK
Given maximum bit-rate:
28
1.
Rate
Symbol
Bandwidth
×
=
Rate
FEC
204
bytes)
(204
Length
Packet
m
1
rate)
(bit
Rate
Symbol
×
×
×
−
=
where:
m = 2 for QPSK
3.6
Setup/Operations Menu Options
3.6.1
Selection
The
Setup/Operations Menu
is selected from the
Summary Screen
(see
page 3-20) by pressing the Ops softkey.
This menu enables rapid changes to key operating parameters.
The options available are shown in the following screens, and described in
the following paragraphs. The Mon and Load softkeys provide shortcuts to
the Input Monitor display screen (see page 3-111) and the
Setup/System/Config/Load
screen (see page 3-31).
Setup/Operations Menu
IF Output
On
Mon
Modulation
On
PgDn
IF Power
N o r ma l ( 0 .0 dB m )
Load
FEC Rate
3 / 4 ( F ix e d)
Quit
