EN
5
COFDM input
Input frequency MHz 177,5 - 226,5 (VHF) (Select.)
474 - 858 (UHF) Input VSWR dB typ. >10
Input connectors type “F” female Bandwidth MHz 7, 8
Frequency steps KHz 125, 166 (Select.) Through loss dB typ. < 1,5
Input level dBm -60 to -20 Input line powering Vdc 0, 12, 24 (Select.)
Input impedance ohm. 75
COFDM *
Modulator
Constellation QPSK, 16QAM, 64QAM Interleaving DVB ET300744
Guard interval 1/4, 1/8, 1/16, 1/32 Cell_id Auto
FEC 1/2, 2/3, 3/4, 5/6, 7/8 Spectral inversion Normal / Inverted
Scrambling DVB ET300744
COFDM output
Output frequency MHz 177,5 - 226,5 (VHF) (Select.)
474 - 858 (UHF) Through loss dB typ. < 1,5
Frequency steps KHz 125, 166 (Select.) Return loss dB typ. > 12
Bandwidth MHz 7, 8 Output connectors type “F” female.
Maximum output level dBV 80 ±5 Output impedance ohm. 75
Attenuation dB >15 (Select.)
General Consumption** mA
typ.
24V 250 (no CAM module inserted and without powering preampliers)
24V 300 (with CAM module inserted and without powering preampliers)
24V 300 (no CAM module inserted and powering preampliers)
24V 340 (with CAM module inserted and powering preampliers)
Index of protection IP20
1. Technical specifications
1.1. COFDM-COFDM CI ref. 563401
* The transmodulator is completely transparent to the COFDM input modulation, and therefore it keeps its parameters at the output.
**Consumption of the CAM unit depends on the type of CAM used. It is considered a consumption of 50 mA for the preamplier.
The technical characteristics described are dened for a maximum ambient temperature of 45°C (113ºF). Forced ventilation is used for higher temperatures.