14MM-TDX420 - Twin DVB-S/S2 to DVB-T Transmodulator
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Twin DVB-S/S2 to DVB-T Transmodulator

14MM-TDX420

Product Summary

The TERRA TDX420 is a DVB-S/S2 to DVB-T transmodulator with powerful processing and management abilities, 2x DVB-S/S2 inputs and 2x DVB-T outputs. The TDX420 has a built-in SNMP and web control for easy management of services and general setup. In addition, the TDX420 can multiplex services from any input to any output for total flexibility.
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Features and Benefits

  • Twin DVBS/S2 to Twin DVB-T output
  • Service multiplexing - any input to any output
  • Simple web control and SNMP monitoring with an onboard email client
  • MER ≥ 38 dB (100-780 MHz) ≥ 35 dB (780-860 MHz)
  • Bonded channel output
  • Full LNB powering control

Specifications

Number of channels 2
RF Input
Frequency Range* 950-2150 MHz
LNB Powering/Control* 0/13/18 V & 500 mA max. DiSEqC 1.0, EN50607, EN50494
Level/Impedance 45-85 dBµV / 75 Ω
Loop Through Gain -1 ± 1 dB
Standard* DVB-S DVB-S2**
Modulation QPSK QPSK, 8PSK, APSK 8/16/32
Symbol Rate 2 ÷ 45Ms/s 2 ÷ 45Ms/s
Code Rate 1/2, 2/3, 3/4, 5/6, 7/8 QPSK 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

8PSK 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
Roll Off 35% 20%, 25%, 35%
RF Output
Frequency Range* 100-858 MHz, by step 100 kHz
Channel allocation Adjacent
Level/Impedance 90 ± 2 dBµV / 75 Ω
Spurious Level < -60 dB
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
Output Level Adjustment Range* 0 ÷ -15.0 dB by 1 dB step
Loop Though Frequency Range/Loss 47-862 MHz / ≤2.5 dB
Transport Steam Parameters
Max. Bit Rate Output 31670 kbps
Max. PID filter count 255 per transponder
Management Port Standard IEE802.3 10/100 Base T
Current Consumption*** 12 V 550 mA
Operating Temperature Range 0° ÷ +50°C
Dimensions/Weight (packed) 48.5x198x112 mm/0.9 kg
* Software control
** Supports physical layer framing/signaling (PLS) and multiple input streams (MIS)
*** Without external DC feeding and CAM, with two CAM's ≈0.95 A (for TTX420C), ≈0.85 A (for TDX420C)
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