Description

ttx420 – Twin DVB-T/T2/C to DVB-T transmodulator
Modular reception system, Twin DVB-T/T2/C – 2 DVB-T transmodulator
Converting of 2 DVB-T/T2/C modulated input signals into 2 COFDM modulated DVB-T channels

Features:
Two channel DVB-T/T2/C – DVB-T transmodulator
● Two Terrestrial or Cable transponders (FTA) to two adjacent DVB-T transponders
● TS processing:
─ service multiplexing – any input to any output
─ PCR restamping
─ service filtering
─ PSI/SI regeneration
─ NIT generation
─ PMT version monitoring
● Web control and SNMP monitoring
● Loop through RF distributing at input and output
● DIN rail or wall mounting
● Robust die-cast housing
● Connectors:
─ RF input/output – type F
─ Ethernet control interface – RJ-45
─ screw terminal block for DC entry
─ power distribution bus

Technical specifications:
RF input: 
● DVB standard: DVB-T/T2/C
● frequency range: 47-862 MHz
● powering/control: 12 V 100 mA
● level/impedance: 40-80 dBμV / 75 Ω
● loop through gain: 0 ± 1 dB
● modulation: QPSK, QAM16, QAM64 (DVB-T), QPSK, QAM16, QAM64, QAM256 (DVB-T2), QAM16, QAM32, QAM64, QAM128, QAM256 (DVB-C)
● bandwidth: 7 MHz/8 MHz (DVB-T/T2)
● code rate: 1/2, 2/3, 3/4, 5/6, 7/8 (DVB-T), 1/2, 3/5, 2/3, 3/4, 4/5, 5/6 (DVB-T2)
● roll of: 15 % (DVB-C)

RF output:
● DVB standard: DVB-T
● frequency range: 100 – 858 MHz, by step 100 kHz
● channel allocation, adjacent: 2
● level/impedance: 90 ± 2 dBμV/75 Ω
● spurious level: < -60 dB
● TS bit rate: < 31 Mbit/s
● MER: ≥ 38 dB (100-780 MHz); ≥ 35 dB (780-860 MHz)
● modulation DVB-T: QPSK, QAM16, QAM64
● 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 adjustment: 0 ÷ -15.0 dB by 1 dB step
● loop through frequency range/loss: 47-862 MHz / ≤ 2.5 dB

Transport stream parameters:
● max. bit rate output: 31670 kbps
● max. PID filter count: unlimited

Management port: standard IEE802.3 10/100 Base T
Current consumption: 12 V 650 mA

TERRA