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AM-10HD / Aug 2008
A M - 1 0 H D G U I
Just above the two large buttons, and below the graphical display, is a row of
several checkboxes. We will describe these in order, starting with the leftmost one.
Audio
When this box is checked and the O‑Scope box (on the right) is unchecked, the
graphical display will show an FFT of the audio. The displayed range may be modi‑
fied by left clicking on the scale on the right‑hand side of the graphic and sliding it
up and down with the mouse. The displayed dynamics range is always 30dB.
When the Input button is illuminated, the FFT shows the audio spectrum of
the Input audio.
When the PreDelay button is illuminated, the FFT shows the audio spectrum
of the output of the AM processing chain prior to the diversity delay.
Gain Reduction
When this box is checked, the graphical display includes information related to
the amount of gain reduction occurring in the AGC and compressor. The Blue line
indicates long‑term AGC activity while the Yellow line indicates the shorter‑term
compression.
Controls
When this box is checked, and if there are controls available for the page being
viewed, they will be shown as blue (or orange if selected) dots within the graphical
display window.
L/R (Left/Right)
When this box is checked the right channel of the audio is displayed on the
graphical display according to the selection made by the Audio checkbox. Alter‑
nately, when L/R is not checked, the left channel is displayed.
O-Scope
When this box is checked and the Audio box is also checked, an oscilloscope‑like
display of the audio waveform is displayed. Which waveform is being displayed at
any instant is a function of the selection made under the “Audio” section explained
above.
