User's Manual

001-2019-500 Rev 0 Paragon4 – UHF, 700 & 800MHz User Manual
63
An example of a look-up table is presented in Table 5 with a corresponding graph in Figure 54
Table 5 - Sample Interpolation endpoints
Figure 54 - Sample Interpolation curve
Values in-between the data points are calculated using a straight line between the closest two known data
points. At least 2 data points are required; however 10 or 20 data points (up to 50) are usually necessary
(depending on the curves behavior).
A look-up table can be created with a simple text editor, such as MS-Notepad, carefully following the
guidelines presented below. The basic syntax is summarized in Table 5.
// symbol preceding any entry denotes comments.
[c] symbol preceding a string of up to 80 characters denotes file description. This string will be dis-
played under “description” field on the “Diagnostics Settings” page of the Pargon3 web interface.
[u] symbol preceding a string of up to 15 characters denotes the desired unit of measure.
[n] symbol preceding an integer denotes the number of entries in the look-up table.
Data points are filled in as {X
in
, Y
out
} pairs. Each pair occupies a line and counts one space in be-
tween its elements:
X
in1
Y
out1
X
in2
Y
out2
X
in3
Y
out3
……..
The number of {X
in
, Y
out
} pairs must correspond to the index ([n]) entered.
Empty lines are not accepted-use comments for formatting.
Duplicate X
in
values are not accepted.
X
in
(Volts) Y
out
(Desired Units)
0.0 0.0
0.2 1.0
0.375 2.0
0.530 3.0
0.530 4.0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0 0.2 0.4 0.6 0.8
Xin (Volts)
Yout (Desired Units)
Preliminary