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BTC Z22 Manual do Utilizador Página 24

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Version 02.00, November 2014
24 Rohde & Schwarz R&S
®
BTC Broadcast Test Center
T2 system
T2 frames per superframe
settable
14
data symbols per T2 frame
settable
14
subslices per T2 frame
≥ 1
12
in-band signaling
in line with T2 version
12
transmission system
SISO, MISO, T2-Lite SISO
12
,
T2-Lite MISO
12
MISO group
settable
PAPR reduction
off, tone reservation (TR)
15
future extension frames (FEF)
off, null, noise
12, 16
T2 version
settable
14
L1 post modulation
BPSK, QPSK, 16QAM, 64QAM
L1 repetition
on/off
L1 post scrambled
settable in line with T2 version
T2 base lite
on/off
12
cell ID
settable
14
network ID
settable
14
T2 system ID
settable
14
Single-frequency network
network mode
SFN
12
, MFN
control
T2-MI
12
, manual
Test signals
TS test packet with settable payload
(PRBS, 0x00, 0xFF) (see “Internal test
signals”)
DVB-T/DVB-H (R&S
®
BTC-K501 option)
DVB-T/DVB-H
in line with EN 300744/EN 302304
Modulation
mode
COFDM
bandwidth
5 MHz, 6 MHz, 7 MHz, 8 MHz (settable for
variable bandwidth: bandwidth used
1 MHz to 10 MHz)
MER
> 40 dB
17
modulation frequency response
< ±0.2 dB
shoulder attenuation
> 48 dB
Coding
constellation
QPSK, 16QAM, 64QAM, hierarchical
coding
code rate
1/2, 2/3, 3/4, 5/6, 7/8
guard interval
1/4, 1/8, 1/16, 1/32
FFT mode
2k, 4k and 8k COFDM
interleaver
native and in-depth
TPS
in line with DVB-T/DVB-H
Special functions
scrambler, sync byte inversion,
Reed-Solomon encoder, convolutional
interleaver, bit interleaver, symbol
interleaver, guard interval
can be switched off
Single-frequency network
network mode
MFN, SFN
control
MIP, manual
Test signals
TS test packet (see “Internal test signals”)
PRBS before convolutional encoder
PRBS after convolutional encoder
15
PAPR reduction in line with T2 version > v1.1.1 not supported yet. Reserved carriers are modulated with 0+j0 only.
16
Special feature to add noise to the FEF payload instead of Null-FEF payload.
17
With internal test signals.
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