Toner Cable SDQPSK Digital Satellite Demodulator - Manual (Page 2)

SDQPSK
Digital Satellite Demodulator
The SDQPSK Digital Satellite Demodulator is a professional quality,
modular, digital, headend component designed to provide optimum
performance with minimized rack space requirements. This demod-
ulator receives a PSK modulated signal (usually it will be QPSK) in
the L Band range of 950-2150 MHz and demodulates the signal
providing an MPEG-2 transport stream digital output. The SDQPSK
easily interfaces to the Drake QAM modulator or SD/HD decoder
modules via a standard 25 conductor data cable (SPI interface).
FEATURES
•
Convenient front panel buttons and
display allow easy setup of
operating parameters.
•
Forward error correction encoding.
DVB or Digicipher II® modes are
supported.
•
Auto Viterbi Scan Mode.
•
Adjustable LNB DC supply and
22 kHz LNB switch control tone
are provided.
•
Fits into the popular DRMM12
rack mount.
DDC806
Digital Downconverter
The DDC806 is a low noise downconverter designed for translating digi-
tal signals from their off-air or CATV channel to a 44 MHz IF output. The
output of the DDC806 can be connected to a DUC series upconverter to
place the digital signal on a new output channel. the DDC806 may be
used with VSB, QAM, or QPSK digital signals. VSB signals up to
16VSB and QAM signals up to 256QAM may be translated. The chan-
nel bandwidth is fixed at 6 MHz. The DDC806 provides low noise figure
and low phase noise as well as a flat passband to minimize signal dete-
RF TUNER
Receiving Frequency: 950 - 2150 MHz.
Tuning Increment: 1 MHz.
Acquisition Range: ±3.5 MHz minimum.
Input Level: -65 to -25 dBm.
Input Impedance: 75 Ohms, return loss of 10 dB typical.
Input Connector: Type F female.
I/Q Level Imbalance: ±1 dB.
I/Q Phase Error: ±3 Degrees maximum.
DEMODULATION
Mode: BPSK, QPSK, OQPSK.
Forward Error Correction: I Tu-T J.83 Annex A (DVB) or IT u-T J.83 Annex B (Digicpher II ).
DVB Viterbi Modes: 1/2, 2/3, 3/4, 5/6, 6/7, 7/8, Scan.
DC II Viterbi Modes: Auto Scan, 5/11, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 7/8.
Input Date Rate: 2 to 45 Msps.
OUTPUT
Transport Stream: Parallel Output according to DVB SPI,
(Synchronous Parallel Interface).
Connector: DB25 Female.
Levels: LVDS, (Low Voltage Differential Signaling).
LNB
Supply Voltage: Programmable, 13 to 18 VDC in 1 V increments or Off.
Supply Current: 300 mA Max.
22 KHz Tone: Programmable ON or OFF.
GENERAL
Size: 2.06'' W x 3.5'' H x 9.25'' D
(5.23 cm W x 8.9 cm H x 23.5 cm D).
Weight: 1 lb. 10 oz. (0.49 Kg).
SPECIFICATIONS
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