The TDX-420 unit is dedicated to receiving FTA satellite channels. This transmodulator allows to carry 6 SD channels or 2-3 HD channels for each multiplex.
What technical characteristics does the TDX-420 transmodulator have?
- Conversion of DVB-S / S2 signals to DVB-T standard COFDM.
- Conversion of multiple signals from two satellite transponders to 2 neighboring DVB-T multiplexes.
- Possibility of creating a DVB-T multiplex from two different satellite transponders.
- Selectable channels and services.
- Easy control through the RJ-45 port.
- Management through the internet.
- Access to the history of events (logs).
- Automatic gain control (AGC).
What technical specifications does the TDX-420 transmodulator have?
| Name | TDX-420 | |||
| Code | R81618 | |||
| Number of supported transponders | 2 | |||
| RF input | Frequency range [MHz] | 950 - 2150 | ||
| Power for an LNB / Control | 0/13/18 V, max 500 mA, 22 kHz, DiSEqC 1.0, EN50607, EN50494 | |||
| Level/Impedance [dBμV / Ω] | 45 - 85 / 75 | |||
| Loop through gain [dB] | -1 ±1 | |||
| Standard | DVB-S | DVB-S2 | ||
| Modulation | QPSK | QPSK, 8PSK, APSK 8/16/32 | ||
| Symbol rate [Ms/s] | 2...45 | 2...45 | ||
| FEC | 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 |
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| Roll-off coef. [%] | 35 | 20, 25, 35 | ||
| RF output |
Frequency range [MHz] | 100...858 (100 kHz step) | ||
| Level/Impedance [dBμV / Ω] | 90 ±2 / 75 | |||
| Spurious level [dB] | < -60 | |||
| Loop loss [dB] | ≤ 2.5 dB | |||
| MER | ≥ 38 dB (100-780 MHz), ≥ 35 dB (780-860 MHz) | |||
| Modulation | QPSK, QAM16, QAM64 | |||
| Channel width [MHz] | 7/8 | |||
| Guard interval | 1/4, 1/8, 1/16, 1/32 | |||
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 | |||
| FFT mode | 2K | |||
| Output level adj. [dB] | 0...-15 (step 1) | |||
| Transport stream parameters | Max. bitrate [kb/s] | 31660 | ||
| Max. number of PIDs | No limit | |||
| - | - | |||
| Other specs | RF loop (frequency range/loss) | 47-862 MHz / ≤ 2.5 dB | ||
| Ethernet port | IEE802.3 10/100 Base-T (RJ45) | |||
| Power [V / A] | 12 / 0.4 | |||
| Oper. temperature range [ºC] | 0...50 | |||
| Dimensions [mm] / Weight [kg] | 48.5x198x112 / 0.9 | |||