Satellite Conversion Digital - HDM 660 T | Grundig uydu sistemleri GSS

Transmodulation from Digital SAT to Digital Terrestrial (QPSK – COFDM – HDM 660 T

HDM660T_03 This module transmodulates two different QPSK-modulated data streams (SCPC or MCPC) into two COFDM-modulated data streams. The output level can be set with an analogue antenna measuring instrument.

It can be decoded up to 12 channels (dependant of the CAM) via the integrated Common Interface of channel A. It allows service information to be changed (NIT – Network Information Table) data rates increased (stuffing) and individual programs to be deleted from the transport stream, whereby the remaining channels can then be transmitted with bandwidth optimization. Moreover, the Operator ID can be set.

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	HDM 660 T
No. of inputs	2
No. of converted transponders	2
Input frequency range	950 – 2150 MHz
Input symbol rate	1 – 45 MSymb/s
Modulation scheme	QPSK, 16-QAM, 64-QAM
No. of carriers	2 k and 8 k
Guard Interval	1/4, 1/8, 1/16, 1/32
Common Interface via channel A	•
Software download	via RS-232
Output frequency range	45 – 860 MHz

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GSS Modules

Transmodulation from Digital SAT to Digital Terrestrial (QPSK – COFDM – HDM 660 T

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