F R O N T C O N S O L E
C H A P T E R 3
Spectrum
Figure 45: Spectrum Display
The Spectrum Display shows a classical spectral view of the frequency with the ends of the display
determined by the bandwidth of the filter. The scale across the top shows the frequency offset in Hz
from the VFO A frequency. Rather than only using half the display window when in lower or upper
sideband, we expand the display moving the 0Hz line to the left or right margin (1.2kHz tone in USB
mode with a 2.7kHz filter shown).
Panadapter (Panoramic Adapter)
Figure 46 Panadapter Display
The Panadapter Display is similar to the Spectrum Display with several differences.
The maximum display width is a function of the selected sampling rate, no matter what filter
bandwidth is selected.
The selected filter is displayed as an overlay to help the user visualize the filter. Shown are the
main RX filter (green, VFO-A), the MultiRX filter (blue, VFO-B) and the TX filter edges (yellow
vertical lines). The color of all the filter overlays can be changed independently using the Setup
Form-Appearance Tab, Display Sub-Tab (page 97).
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2003-2009 FlexRadio Systems
