Terra tdx420, Руководство пользователя

Страница: 19 / 38

19
Draugystes str. 22, LT-51256 Kaunas, Lithuania, tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55
E-mail: sales@terraelectronics.com , http://www.terraelectronics.com
Type
tdx420C / tdx420 ttx420C / ttx420
RF input frequency range 950-2150 MHz 47-862 MHz
LNB/preamplifier 0/13/18 V & 22 kHz, 1 A** max.
12 V 100 mA
powering/control DiSEqC 1.0, EN50607, EN50494
level / impedance 45-85 dBµV / 75
W
40-80 dBµV / 75
W
loop through gain -1 ± 1 dB 0 ± 1 dB
standard DVB-S DVB-S2* DVB-T DVB-T2 DVB-C
modulation QPSK QPSK, 8PSK QPSK, QAM16, QPSK, QAM16, QAM16, QAM32,
APSK 8/16/32 QAM64 QAM64, QAM256 QAM64, QAM128,
QAM256
channel bandwidth - - 7 MHz, 8 MHz 7 MHz, 8 MHz -
symbol rate 2 ÷ 45 Ms/s 2 ÷ 45 Ms/s - - 1 ÷ 7.2 Ms/s
code rate 1/2, 2/3, 3/4, QPSK 1/2, 3/5, 2/3, 1/2, 2/3, 3/4, 1/2, 3/5, 2/3, 3/4,
-
5/6, 7/8 3/4, 4/5, 5/6, 8/9, 9/10 5/6, 7/8 4/5, 5/6
8PSK 3/5, 2/3, 3/4,
5/6, 8/9, 9/10
roll off 35 % 20 %, 25 %, 35 % - - 15 %
RF output standard DVB-T / ISDB-T
modulation QPSK/QAM16/QAM64 (DVB-T), QPSK/DQPSK/QAM16/QAM64 (ISDB-T)
frequency range 100 - 858 MHz, by step 100 kHz
channel allocation adjacent
level / impedance 90 ± 2 dBµV / 75 W
spurious level < -60 dB
MER
≥
38 dB (100-780 MHz);
≥
35 dB (780-862 MHz)
channel bandwidth 7/8 MHz
guard interval 1/4, 1/8, 1/16, 1/32
code rate 1/2, 2/3, 3/4, 5/6, 7/8
transmission mode 2K
total output level
0
÷
-15.0 dB by 1 dB step
adjustment range
loop through frequency
47-862 MHz / ≤ 2.5 dB
range/loss
Transport max. bit rate
output 31670 kbps
stream max. PID filter count
unlimited
parameters
Management port
standard IEE802.3 10/100 Base T
Supply voltage 12 V ±1 V
Current consumption
550 mA 650 mA
without external load
Current consumption
3 A 0.8 A
with maximum external load
Current consumption with maximum
3.6 A - 1.1 A -
CAM-s and external load
Operating temperature range
0
o
÷ +50
o
C
Dimensions/Weight (packed) 48.5x198x112 mm/0.9 kg
7. Technical specifications
pr.
pr.
pr.
pr.
pr.
pr.
pr.
pr.
pr.
pr.
pr.
* supports physical layer scrambling (PLS) and multiple input streams (MIS)
**
only in v.1 and v.2 versions
pr. software control