DRAKE SCT4860 Руководство по эксплуатации - Страница 4
Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Модулятор DRAKE SCT4860. DRAKE SCT4860 15 страниц. Transcoder system
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Table of Contents / Specifications
TABLE OF CONTENTS
2
3
4
Table of Contents / Specifications
5
6
7
8
9
11 Cable Channel Frequency Tables
12 Broadcast Channel Frequency Tables
SPECIFICATIONS
SATELLITE INPUT
Frequency Range:
Tuning Increment:
Acquisition Range:
Input Level:
Input Impedance:
I/Q Phase Imbalance:
I/Q Amplitude Imbalance:
Mode:
FEC:
VITERBI Autoscan:
Turbo QPSK modes:
Turbo 8PSK modes:
Input Data Rate:
TRANSPORT STREAM
Auto clock mode:
Fixed clock mode:
PCR Restamping:
QAM OUTPUT
Output Impedance:
Output Level:
Display Error:
Level Adjustment Increment:
Frequency Range:
Frequency Plan:
Broadband Spurious:
Broadband Noise:
Phase Noise:
Frequency Stability:
QAM I/Q Phase Error:
Channel Amplitude Error:
Carrier Suppression:
MER:
Mode:
Symbol Rate:
FEC:
RS232 CONTROL
Data Link:
RS232 Input:
RS232 Output:
GENERAL
Operating Temperature Range:
Size:
Weight:
Power Requirement:
Specifications subject to change without notice or obligation.
950 MHz to 2150 MHz.
500 kHz.
±5.0 MHz minimum.
-25 dBm to -70 dBm.
75 Ohms, return loss of 10 dB minimum.
<1 Degree.
<1dB.
QPSK, 8PSK.
DCII, DVB, advanced Turbo modes
1/2, 2/3, 3/4, 5/6, 6/7, 7/8 - DVB
5/11, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 7/8 - DCII
1/2, 3/4, 2/3, 5/6, 7/8
2/3, 5/6, 8/9, 3/4, 4/5
2 Mbaud to 30 Mbaud.
GROOMING
None
Null packets are dropped or added as
necessary to provide user selected fixed
output baud rate.
When required.
75 Ohms, return loss of 10 dB minimum.
+ 25 to +40 dBmV, displayed.
± 2 dB maximum.
1 dB, nominal.
54 MHz to 864 MHz.
Standard, IRC, or HRC CATV channels
or off-air broadcast channels.
-60 dB, 5 MHz to 900 MHz.
-75 dBc, 6 MHz bandwidth.
-103 dBc/Hz @ 10 kHz offset.
± 5 kHz.
<1 degree.
<1 dB.
45 dB.
>40 dB, with blind equalizer.
16, 32, 64, 128, 256, 512, 1024 QAM.
1 Mbaud to 7 Mbaud.
ITU-T J.83 Annex A or Annex B.
4800 baud interface to PS151 via power
supply cable.
DB-9 connector on PS151 for connection
to modem or PC.
DB-9 connector on PS151 for connection
to additional transcoders.
0
0
C to +50
0
C, ambient.
1.1" W x 3.4" H x 13.25" D.
1 lb. 6 oz.
All voltages are provided by the Drake
model PS151 power supply. PS151
power requirement: 90 to 260 VAC / 150
W, maximum w. 10 transcoders powered.