Plot Width; Big Frequency Display; F4 Scales And Legends; Grid Lines - AEA VIA Bravo MRI Operating Manual

3.9.4 Plot Width

The graphs can be either 80 or 100 points wide. 80 points gives a smaller sweep range
with only 8 horizontal divisions, but it allows the large numeric display of center frequency
values. When 100 points are used, there are 10 horizontal divisions, and the kHz/division is
easier to keep track of mentally because it is easy to divide by 10. However, the 100 point
display leaves no room for large numeric displays, so all center frequency values are
displayed with small digits. Pick the plot width you are most comfortable with.

3.9.5 Big Frequency Display

An option to display the center frequency with large digits is available. This option is only
available on the 80 point plot. This display does cover a portion of the plot area so you
usually use it when you are far enough away from the screen that you will be reading the
numbers more than you will be examining the plots. This option is also useful when you are
examinig the plots on the VIA Director program, and you just want to check the status of the
VIA Bravo MRI from a distance.
3.10

F4 Scales and Legends

This menu allows you to select the plot scales, the x axis format, and the number of
horizontal grid lines to show. (See Below)
3.10.1

Grid Lines

You can choose 1, 3 or 5 horizontal grids.
3.10.2 X Axis Label
You can choose between 3 frequencies (F-Low, FC, F-High) or the center frequency
plus/minus the delta frequencies (-dF , FC, +dF).
3.10.3

Left Plot Scale

Select the scale of the left plot. Choices vary depending on what is being plotted. See
paragraph 9.1.3.1 to see what scales are available for each type of plot data.
3.10.4

Right Plot Scale

Select the scale of the right plot. Choices vary depending on what is being plotted.

3.11 F5 Memory and Miscellaneous

This menu lets you save and recall data, set the plot name, set the cable properties, set
the baud rate, and perform a self test.
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