Specifications, Rs232 control, Satellite input qam output general – Drake SCT4860 8PSK Sat-1024QAM Cable Transcoder User Manual
Page 4: Transport stream grooming
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Frequency Range: 950 mHz to 2150 mHz
Tuning Increment: 500 kHz
Acquisition Range: ±5.0 mHz minimum
Input Level: -25 dBm to -70 dBm
Input Impedance: 75 ohms, return loss of 10 dB minimum
I/Q Phase Imbalance: <1 Degree
I/Q Amplitude Imbalance: <1dB
Mode: qPSK, 8PSK
FEC: DCii, DVB, advanced turbo modes
VITERBI Autoscan: 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
Turbo QPSK modes: 1/2, 3/4, 2/3, 5/6, 7/8
Turbo 8PSK modes: 2/3, 5/6, 8/9, 3/4, 4/5
Input Data Rate: 2 mbaud to 30 mbaud.
RS232 CONTROL
Data Link: 4800 baud interface to PS151 via power supply cable.
RS232 Input: DB-9 connector on PS151 for connection to modem or PC.
RS232 Output: DB-9 connector on PS151 for connection to additional transcoders.
Specifications
Specifications subject to change without notice or obligation.
SATELLITE INPUT
QAM OUTPUT
GENERAL
Operating Temperature Range: 0
o
C to +50
o
C, ambient.
Size: 1.1" W x 3.4" H x 13.25" D.
Weight: 1 lb. 6 oz.
Power Requirement: 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.
Output Impedance: 75 ohms, return loss of 10 dB minimum
Output Level: + 25 to +40 dBmV, displayed
Display Error: ± 2 dB maximum
Level Adjustment Increment: 1 dB, nominal
Frequency Range: 54 mHz to 864 mHz
Frequency Plan: Standard, iRC, or HRC CAtV channels or off-air broadcast channels.
Broadband Spurious: -60 dB, 5 mHz to 900 mHz
Broadband Noise: -75 dBc, 6 mHz bandwidth
Phase Noise: -103 dBc/Hz @ 10 kHz offset
Frequency Stability: ± 5 kHz
QAM I/Q Phase Error: <1 degree
Channel Amplitude Error: <1 dB
Carrier Suppression: 45 dB
MER: >40 dB, with blind equalizer.
Mode: 16, 32, 64, 128, 256, 512, 1024 qAm
Symbol Rate: 1 mbaud to 7 mbaud
FEC: itu-t J.83 Annex A or Annex B
TRANSPORT STREAM GROOMING
Auto clock mode: None
Fixed clock mode: Null packets are dropped or added as necessary to provide user selected fixed output baud rate.
PCR Restamping: When required.