Tektronix MTM400 사용자 설명서

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Interface Configuration and Interpretation 
MTM400 MPEG Transport Stream Monitor User Manual 
3-109
 
QPSK (L-Band)  
The QPSK (L-Band) Interface option allows you to connect to QPSK equipment 
operating in the L-Band (950 MHz to 2150 MHz). It will internally I-Q 
demodulate the signal with its on-board AGC control, Viterbi decoder, and FEC 
decoder.  
The module will tune the full Satellite IF band, which is considerably wider than 
the L-Band itself. As LNB support is included, this allows the module to be used 
with a stand-alone TVRO dish.  
The input to the interface card is looped through to the output connector, allowing 
subsequent processing of the input signal. 
The L-Band Interface allows you to monitor and/or record the transport streams 
from within the L-Band signal. 
Bit Error Rate (BER) values are available during operation.  
Configuration - QPSK (L-Band) 
 
Figure 3-38: Interface configuration - QPSK (L-Band)