AVCOM PSA-2500C - Page 11

Avcom of Virginia – 7729 Pocoshock Way – Richmond – Virginia - 23235 – USA
www.avcomofva.com – PHONE 1.804.794.2500 – FAX 1.804.794.8284
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5.2.3 PRESETS
Presets – The GUI supports up to 15 user-defined presets that are assigned to each analyzer in the SA List.
Each preset stores:
a. Center Frequency
b. Span
c. Reference Level
d. RBW
e. RF Input
f. Start and End frequency markers
g. LO Offset
h. LNB Power voltage
i. LNB Power 22kHz signal
j. New! Show/Hide Quintech controls
k. New! Spectrum Flip
5.2.4 SIGNAL ANALYSIS
• Measurements:
o Show Delta – Green Delta measurement points can be dragged to the location of your choice on the
waveform and the power and frequency difference is calculated. Delta markers are reset if reference
level is changed.
o Show Pointer – When selected and the mouse is left-clicked within the graph, the frequency and
power at the pointer is shown.
o SNR (Peak – Min) – Calculates the “Signal to Noise” difference between the displayed signal peak
and minimum values.
o Integrated BW Power – Also known as Total Power.
o Show -3dB – The GUI determines the signal peak and then the difference between the -3dB down
frequency points on each side of that peak and shows them with dotted yellow lines. The peak is not
shown unless you select Peak Ride as well.
• Peak – Ride continuously calculates the peak power level of the waveform and the frequency at that point.
Hold maintains the peak level measured. Selecting “None” clears the indicator.
• Carrier ID – Compares the active signal to all stored Save Single (.SIN) and Record Stream (.REC) files in
the selected folder and calculates a Percent Match. The GUI will attempt to tune the active signal to the same
parameters as the saved signal.
• Waterfall – Displays a histogram of previous signals behind the current signal.
5.2.5 SIGNAL PROCESSING
• RL Zoom – Used for selecting from 5dBm/Div to 2dBm/Div and adjusting the signal up or down for
better resolution
• Filter – Averages the displayed waveform over the last 4, 8 or 16 waveforms
• Persistence – Calls up a popup to select between None, Peak, Minimum, and Envelope Persistence. Finds
and holds the maximum or minimum amplitude for each point on the graph for the selected period of
time. Envelope Persistence shows both the maximum and minimum amplitude for each point with a
dotted yellow line.