Robotron Pty Ltd G9P 用户手册

WiNRADiO G39DDC User’s Guide

Note that the best achievable accuracy of the various point-and-click
operations inside the displayed spectra will be limited by the width of the
displayed spectrum (remember that the width of any of the spectrum
scope windows is adjustable and can be extended over two or more
monitors) and the respective RBW limit of the particular spectrum scope,
which is dependent on the currently selected DDC bandwidth.

Spectrum Averaging

The AVG control employs time averaging to smooth the spectrum trace. The
trace is averaged over the selected time period, variable from 0 to 2 seconds.

This makes the viewing of the spectrum easier on the eyes, reducing the noise
floor fluctuations while leaving the useful signal clean and steady.

The

and

buttons make it possible to reveal minimum and maximum

signal values (respectively) received during the averaging period. These
buttons are enabled only if the averaging period is non-zero.

Waterfall Spectrum

The DDC and wideband spectrum scopes are both equipped with the
Waterfall function. Clicking on the Waterfall button transforms the standard
spectrum scope into a waterfall-type one, where the vertical-axis represents
time and signal strength is represented by a palette of colors: