Subcarr IQ Ref Time (TEDS)

Subcarr IQ Ref Time shows a sequence of ideal I and Q states for a specific Analysis Subcarrier. You can use this trace for comparison purposes with measured signals.

Select Trace > Auto Scale to scale the trace. The trace shown above is the constellation trace for the reference signal (Normal Uplink, 50kHz channel bandwidth, 16QAM modulation).

Select Markers > Show Marker to place a marker on the trace; then review the symbol information in the marker readout window. Once you have a marker on the trace, use your left and right arrow keyboard keys to move the marker through the symbols.

To view this same trace as a measured composite signal, see Overlaid IQ Ref Time.