Τεχνικά Χαρακτηριστικά
QPSK Demodulator
– LNB Powering (1unit) 13/17V (±0.5 V) / OFF 22KHz (±2KHz) (Select. ON/OFF) Input VSWR (75 ohm) > 7 dB (950 – 2150 MHz) Input symbol rate 2 – 42,5 Mbaud
– Input through losses < 1.5 dB (950-2150 MHz) Capture range ± 960 ppm
– Input frequency 950 – 2150 MHz Roll-off factor 35%
– Frequency steps 1 MHz Convolutional code 1/2, 2/3, 3/4, 5/6, 7/8
– Locking margin ± 1 MHz (10 Mbaud) Descrambling ETS300421 Deinterleaving
– Input level 44 to 84 dBμV (-65 to -25 dBm) Block code RS(204,188)
MPEG-2 Video decoders
– Input 1 format MPEG-1 Chrominance format: 4:2:0
– Decoding ISO/IEC 11172-2 Video resolution Max. 720 x 576
– Input 2 format MPEG-2 WSS signalling Active
– Decoding ISO/IEC 13818-2 (MP@ML) Subtitle insertion PAL: Active
– TS input rate Max. 90 Mbits/seg
– Base band video output: Jack 2,5 mm.
– Video rate 1.5 to 15 Mbits/seg
MPEG-2 Audio decoders
– Input format MPEG-1, MPEG-2
– Audio output Stereo, Dual
– Decoding LAYER 1, LAYER 2
RF Output
– Output frequency 46- 862 MHz VSWR Output (75 ohm): 10 dB min. 14 dB typ.
– Frequency steps 250 KHz Through losses: < 1.5 dB (46-862 MHz)
– Maximum output level 80 ±5 dBμV
– Spurious band level: 55 dBc min. >60 dBc typ.
– Attenuation >15 dB
General
– Consumption 24V : 550 mA typ., no CAM inserted; 24V: 590 mA typ.,CAM inserted (LNB power OFF)
24V : 755 mA typ., no CAM inserted; 24V : 810 mA typ., CAM inserted (LNB power ON)
– Protection index IP20
