Comtech EF Data CDD-880 Manual do Utilizador Página 22

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MetaCarrier Overlay
Carrier To Be Identified
Very low data rate
MetaCarrier w/o
spreading
Carrier
To
Be
Identified
CitfOiild
MtC i
Noise Floor
Carrier Center Frequency
Carrier Center Frequency
Noise Floor
C
ompos
it
e o
f
O
r
i
g
i
na
l
an
d
M
e
t
a
C
arr
i
e
r
Very low data rate
MetaCarrier w/
spreading
Carrier Center Frequency
Carrier Center Frequency
Noise Floor
Noise Floor
The
MetaCarrier
is placed 22 dB below the peak of the carrier it is identifying
22
The
MetaCarrier
is
placed
22
dB
below
the
peak
of
the
carrier
it
is
identifying
,
at the center frequency of the carrier
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