ILS Activates the ILS measurement mode.
VOR Activates the VOR measurement mode.
FSCAN Activates the optional (R&S® EVS-K1) FSCAN or (R&S® EVS-K4) FFT measurement mode, depending on which option is installed and was used last.
BEACON Activates MARKER BEACON measurement mode.
GPS Opens screen for viewing parameters from a connected GPS device. Option R&S® EVS-K2 required.
FREQ Press to edit or enter a new RF frequency or channel number.