DRAKE MQM6000L Manual de instruções - Página 4

Procurar online ou descarregar pdf Manual de instruções para Modulador DRAKE MQM6000L. DRAKE MQM6000L 15 páginas. Multiplexing qam modulator

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DRAKE MQM6000L Manual de instruções
4
Table of Contents / Specifications

TABLE OF CONTENTS

2
3
Important Safety Instructions
4
Table of Contents / Specifications
5
General Description
6
Installation and Mounting / Front Panel Controls
7
Rear Panel Connections
8
Setup and Programming
SPECIFICATIONS
MULTIPLEXING and PROGRAM FILTER
ASI INPUTS
Six Inputs
Programs
NULL PACKET PROCESSING:
QAM MODULATOR
Modulation Modes:
Symbol Rate:
FEC:
I/Q Phase Error:
Carrier Suppression:
Channel Amplitude Error:
MER:
UPCONVERTER RF OUTPUT
Output Frequency Range:
Channel Plan:
FCC offsets:
Frequency Stability:
Maximum Output Level:
Output Level Accuracy:
Output Impedance:
Spurious Outputs:
Broadband Noise:
Phase Noise:
RS232 CONTROL
Data Link:
RS232 Input:
RS232 Output:
GENERAL
Power:
Weight:
Size:
Operating Temperature:
270 MHz clock rate, 40 Mbps maximum TS rate at each input.
MPTS or SPTS
One SPTS may be selected from each input. The selected
programs will be multiplexed as long as the data rate of the
resulting MPTS does not exceed the output QAM channel
capacity.
Fixed output clock mode
16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM or
1024QAM. (See page 9 for all available combinations of QAM
modes and FEC.)
1 Ms/s to 7 Ms/s.
ITUA (DVB) or ITUB (DigiCipher II).
Less than 1 degree.
45 dB.
Less than 1 dB.
Greater than 38 dB with blind equalizer.
54 MHz to 1002 MHz.
Std. CATV, HRC, IRC, or Broadcast
Automatic, +12.5 or +25 kHz
± 5 ppm.
+ 40 dBmV minimum, adjustable downward.
± 1 dB.
75 Ohms with return loss better than 14 dB
(within output filter passband).
-60 dBc from 40 MHz to 1000 MHz.
-75 dBc
-101 dBc @ 10 kHz offset
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.
90 - 132 VAC/ 60 Hz, 15 W maximum.
7 pounds
19" W x 1.75" H x 11.5" D.
0 degrees C to + 50 degrees C
Specifications subject to change without notice or obligation.