Test Set Operation
Subject to Export Control, see Cover Page for details.
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2.4.5.I
Symbol Table Tab
Provides visualizat ion of the actual decoded VDL data packet.
Fig. 2-49 VHF Analyzer GUI Symbol Table Tab view
VDL Display Mode wind ow:
All options are mu tually exclusive
Sym bo ls op tio n:
Displays the derived data packet in a representative symbol format.
Bits option:
Displays the derived data packet in a bi nary bit (ones and zeros) format.
Mod e2 frame o ption:
Displays the derived data packet in a decoded text format.
VDL Measurements win dow:
EV M (%) data field:
Displays the derived Error Vector Measurement as a percentage
I-Q I mb alance (%) d ata field :
Displays the level of imbalance between the derived I and Q points.
LO Leakage(%) data field:
Displays the derived offset of the symbol constellation from center.
Number of symbols data field:
Displays the derived number of symbol s repr esented in the demodulated data
packet stream of I-Q points.