Teledyne LeCroy QPHY-UWB User Manual
Page 12
12
QPHY-UWB-OM-E Rev C
Setting the Band Group
Select the Band Group control to set the Band Group for the packet to be analyzed.
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Each Band Group is composed of 3 bands, except for Band Group 5, which has 2 bands
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Each Band Group has 10 possible TFC choices except Band Group 5, which has 3
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Each combination of Band Group and TFC is called a Channel
Setting the Data Rate
Selecting the Data Rate allows you to select the data rate for the payload portion of the packet to be analyzed.
Note: In the MB-OFDM signal, the data is modulated with a QPSK scheme for data rates up to 200 Mb/s. For
user signals with higher data rates, the DCM modulation scheme is used (18 stars in the constellation display, 16
for data plus 2 for pilot tones).
QPSK constellation display (4 stars)
DCM constellation display
(16 stars data + 2 stars for pilot tone)