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T-0X - TWIN - Umsetzter QPSK in PAL mit CI

Ref. 5537

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The TWIN QPSK-PAL CI allows the user to trasmodulate two channels (TV or radio) selected from those in two satellite transponders (same band and polarisation), into two VHF/UHF PAL channels, with the possibility of stereo modulation.

  • The unit allows access to scrambled services by using a conditional access module (CAM) that performs the service’s descrambling.
  • Two 3.5 mm jack connectors that make available in baseband the two audio & video channels of each module.
  • IF loop-through for the input connectors on the top of its front, in order to enable the passage of the input signal to other modules.
  • RF loop-through for the output connectors on the bottom of its front, in order to mix the channels for further amplifi cation.
References 5537
QPSK
Demodulato
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 throgh 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 (<5 Mbaud)
± 2 MHz (5-10 Mbaud)
± 5 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

 

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Benutzerbilder: 
Televes
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