DRAKE DTD1000 Інструкція з експлуатації - Сторінка 5
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TABLE OF CONTENTS
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Table of Contents / Specifications
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Rear Panel Controls and Connections
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SPECIFICATIONS
SDE24 DUAL PROGRAM ENCODER MODULE
Analog Interface
Composite video Inputs
Composite Video Input Level
S Video Inputs
Composite or S Video select
Audio Inputs, for 2 programs
Audio Input Level
MPEG Encoder
Encode Format - #1 input
Encode Format - #2 input
Encoding Bitrate
Video Adjustments
Audio Encoder
Selectable types
AC3 Encoder
Output bitrate
Output
DTD1000 DEMODULATOR (S)
Input Frequency Range:
Channel Plans (Menu selectable)
Input Channel Bandwidth:
Input RF Level Range:
Input Impedance:
Input Return Loss:
Image rejection:
Adjacent Channel Rejection:
Noise Figure:
Demodulation Modes:
Symbol Rates:
Table of Contents / Specifications
2 composite inputs, one for
each program
1 Volt p-p ± 3 dB
2 S Video connectors, one
for each program
User selectable for each
program input
RCA type for L and R audio
channels, 2 sets
1 Vrms or 2 Vrms user
selectable and user
adjustable audio gain ± 15dB
MPEG2 or MPEG4 H.264,
selectable
MPEG2 only
Constant Bitrate: 1 Mbps to
8 Mbps
Brightness, Contrast,
Saturation, Hue
AC3 - Dolby digital Stereo
OR
MP2 - MPEG1, Layer 2
Manufactured under license
from Dolby Laboratories.
320 kbps
The output of each SDE24
module is connected
internally to the multiplexers
that are included in the
MEQ1000 chassis.
Input Module
54 to 1000 MHz.
Std. CATV, HRC, IRC, or
:
Broadcast
6 MHz.
-33 dBmV to +35 dBmV,
8VSB
-22 dBmV to +35 dBmV, 64
QAM
-17 dBmV to +35 dBmV, 256
QAM
75 Ohms
> 6 dB, Broadcast mode; >
12 dB, CATV mode.
80 dB.
40 dB
< 9 dB, Broadcast mode; <
12 dB, CATV mode.
8VSB - ATSC
64QAM, 256QAM, - ITUB,
CATV mode.
10.76 MS/s, 8VSB; 5.057
MS/s, 64QAM; 5.3606MS/s,
256 QAM
13 Operating Instructions for Drake Digital Headend Program
14
SPECIFICATIONS (Continued)
ASII ASI INPUT
ASI Input Clock:
ASI Input Data Rate:
MEQ1000
Modulation Modes:
Symbol Rate:
FEC:
I/Q Phase Error:
Carrier Suppression:
Channel Amplitude Error:
MER:
MEQ1000
Output Frequency Range:
Channel Plan:
Frequency Stability:
Maximum Output Level:
Minimum Output Level:
Output Level Accuracy:
Output Impedance:
Spurious Outputs:
Broadband Noise:
Phase Noise:
MEQ1000
Data Link:
RS232 Input:
RS232 Output:
MEQ1000
GENERAL
Power:
Weight:
Size:
Operating Temperature:
Specifications subject to change without notice or obligation.
Input Module
270 MHz
Maximum of 80 Mbps per ASII module.
QAM Modulator
16QAM, 32QAM, 64QAM, 128QAM,
256QAM, 512QAM or 1024QAM.
1 Ms/s to 7 Ms/s.
ITUA (DVB) or ITUB (DigiCipher).
Less than 1 degree.
45 dB.
Less than 1 dB.
Greater than 38 dB with blind equalizer.
Upconverter RF Output
54 MHz to 1002 MHz.
Std. CATV, HRC, IRC, or Broadcast
± 5 ppm.
+ 61 dBmV minimum, adjustable
downward.
+ 45 dBmV.
± 1 dB.
75 Ohms with return loss better than 14
dB (within output filter passband).
-60 dBc from 40 MHz to 1000 MHz.
Less than -12 dBmV (6 MHz BW @ ±12
MHz).
-101 dBc @ 10 kHz offset
RS232 Control
2400, 4800, 9600, or 19,200 baud
interface via serial cable.
DB-9 connector for connection to
modem or PC.
DB-9 connector for connection to
addtional transcoders.
ASI OUTPUT
The ASI output provides a copy of the
transport stream that is input to the QAM
modulator.
90 - 132 VAC/ 60 Hz, 35 W maximum.
9.5 pounds
19" W x 1.75" H x 14.5" D.
0 degrees C to + 50 degrees C
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