DRAKE DTD1000A Gebrauchsanweisung - Seite 6
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General Description and Features
INTRODUCTION
The Drake® DTD1000A Demodulator Module (in tandem with the Drake® MEQ1000A/B Multiplexing Hybrid QAM Modulator) is
designed to provide a demodulated transport stream from a ATSC 8VSB or QAM annex B RF signal.. The MEQ1000A/B accepts
transport streams from up to two input modules. These may be multiplexed into single transport. The transport stream is output
from the MEQ1000A/B as a RF QAM and ASI.
DTD1000A Demodulator Module
The
MEQ1000A/B.
FEATURES & BENEFITS
•
Installs in either input bay A, Input bay B or both on a MEQ1000A/B
•
Demodulates 8VSB, QAM-64B or QAM-256B RF signals
•
Provides entire transport stream to MEQ1000 which may be passed as is or select only the programs desired
•
Multiplex with other program streams from various MEQ1000 input modules
•
QAM and ASI output from the MEQ1000
•
Custom MPEG program number or VCT (virtual channel tables) from MEQ1000. if desired.
DTD1000A
Item # 1002512A
DEMODULATOR MODULE (Specifications are per DTD1000A)
Input:
Input Frequency Range:
Channel Plan:
Input Channel Bandwidth:
Input Impedance:
Input RF Level Range:
Input Return Loss:
Image Rejection:
Adjacent Channel Rejection:
Noise Figure:
Demodulation Modes:
Symbol Rates:
Form Factor:
Control:
Dimensions:
Weight:
Temperature Rating:
Specifications, price, and availability are subject to change without notice or obligation.
6
937.746.4556 |
allows you to add
Specifications
1 x Female "F" Connector
54 - 1000 MHz
Air/Broadcast, CATV-STD, CATV-IRC or CATV-HRC
6 MHz
75 Ohms
33 to +35 dBmV (8VSB – ATSC)
-22 to +35 dBmV (64 QAM)
-17 to +35 dBmV (256 QAM)
> 6 dB (Broadcast mode)
> 12 dB (CATV mode)
80 dB
40 dB
< 9 dB (Broadcast mode)
< 12 dB (CATV mode)
ATSC - 8VSB
CATV Mode - 64 QAM & 256 QAM (ITU - B)
10.76 MS/s, 8VSB
5.057 MS/s, 64 QAM
5.3606 MS/s, 256QAM
Rear panel input bay of a MEQ1000A/B
Via MEQ1000A/B
3 1/4" x 1 1/2" x 8" deep
0.5 lbs
0 - 50˚ C ambient
www.rldrake.com
RF demodulated program
streams to custom QAM multiplexes from the