QPSK Modulator


Pardis DRS-1012 is a very low cost and high capacity QPSK modulator mainly used to replace the Baseband and modulator sections of analog radio links. With its multiple IF and RF outputs, this modulator can be easily attached to the RF units of existing analog radio links and has a high degree of non-linearity and low link quality tolerance. The input to the modulator is built from some or all of the 16 E1 input streams or from the E3 port after passing through the integrated efficient multiplexer. The modulator can also accept DVB MPEG-TS on its E3 or ASI ports and is best matched with Pardis DRS-1022 or any standard professional DVB-S demodulator.



Best choice for replacing IF modulator in analog radio links (used with .).
1-60 Mbps input bit rate.
1-40 MSym/s output symbol with 10 sym/s Step
Robust QPSK modulation for use with ordinary low cost RF modules.
Software upgradeable to 16-QAM modulation.
16E1 or E3 physical input support.
nE1 efficient multiplexing for n=1, 2, 3,,16.
DVB MPEG-TS on ASI/E3 support (optional).
Two ASI/E3 inputs (Software selectable).
Optional Remux operation for two DVB-ASI inputs.
FEC code rates of 1/2, 2/3, 3/4, 5/6, 7/8 and RS(204.188) coding.
Selectable raised cosine roll-off factor of 0.2 to 0.4.
34-70 MHz IF output (1Hz step) with -30 to +5dBm level (1 dB step).
L-Band RF output with -30 to +5 dBm level (1 dB step).
Ethernet, RS-232, RS-485 and local monitoring and control
Compact size of one rack unit.


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