Inst Spectrum (TEDS)

Menu Path: Trace > Data > Channel 1 > Inst Spectrum

Inst Spectrum trace shows the instantaneous spectrum (the most recent measurement rather than the averaged spectrum) of your recorded or hardware signal, scaled to the display. Display information includes the center frequency, the ResBW (Resolution Bandwidth), frequency span and the equivalent TimeLen (time record length). To change the display, select Trace > Format and navigate to the parameter you wish to modify.

Select Trace > Auto Scale to scale the trace. If the trace shows NO DATA, check your recorded signal or hardware input and TEDS demod properties.

Select Markers > Show Marker to place a marker on the trace, and then review the spectrum information in the marker readout window, in particular, the frequency and power (dBmdeciBels referenced to a milliWatt: dB relative to 1 milliwatt dissipated in the nominal input impedance of the analyzer) for each marker location. Once you have a marker on the trace, use your left and right arrow keyboard keys to move the marker through the spectrum display in small increments or hold down the CTRL key at the same time to move in larger increments. Use the up and down arrow keys to sequence from peak to peak.

For an averaged spectrum trace, instead of an instantaneous spectrum trace, see Spectrum.

See Also

About TEDS Trace Data