From 7cdd34ca4582e922f0afd4339b707a31e0cc1cdd Mon Sep 17 00:00:00 2001 From: John J. McDonough Date: Dec 06 2011 17:58:12 +0000 Subject: Add documentation for xnec2c --- diff --git a/en-US/antenna-xnec2c.xml b/en-US/antenna-xnec2c.xml index 4bc0115..9f30d00 100644 --- a/en-US/antenna-xnec2c.xml +++ b/en-US/antenna-xnec2c.xml @@ -20,15 +20,117 @@ Description: xnec2c is a GUI interactive application that (in its current form) -
xnec2c - yagi - - - - xnec2c display of 6 element 20 meter yagi - - - + xnec2c is a GUI wrapper on the popular + NEC2 antenna modeling program. The application allows the design + of an arbitrary antenna, and displays gain, impedance and other + useful results. + + +
+ xnec2c - yagi + + + + + + + xnec2c display of 6 element 20 meter yagi + + + +
+ + + xnec2c displays its output in up to + three windows. The first window shows the model the user has + provided: +
+ Structure display of a collinear + + + + + + + structure + + +
+ The user may rotate the view with the two numeric controls. The + X, Y and + Z buttons permit views along the three axes, + and the curved arrow button returns to the default isometric view. + + Selecting Radiation Pattern from the + View menu opens the radiation pattern window. + The view may be rotated in the same manner as the structure + window. +
+ Structure display of a collinear + + + + + + + structure + + + +
+ The dB / MHz controls + allow for specifying the precise frequency at which the gain is to + be displayed. + + + + Selecting Frequency Plots from the + View menu opens the frequency data plots + window. Buttons along the top permit display of SWR, impedance, + phase, etc. +
+ Structure display of a collinear + + + + + + + structure + + + +
+ Clicking on the graph causes the gain, SWR and impedance to be + displayed immediately above the graphs for the selected frequency. + + + More complete documentation is installed with the application and + may be found at after the + application has been installed. + + +
+ Improving calculation performance + + When a complex antenna with many segments and many frequency + steps is required, the calculation can take some time. + xnec2c is able to take advantage of + modern, multicore processors by specifying -j + <n>, where <n> is the number of + subprocesses to spawn. Many multicore processors can create two + threads per core, so a command line entry of + +xnec2c -j 8 & + + can improve performance by almost a factor of eight on a quad + core processor. + +
+ + diff --git a/en-US/antenna.xml b/en-US/antenna.xml index c6326a5..5a04990 100644 --- a/en-US/antenna.xml +++ b/en-US/antenna.xml @@ -7,7 +7,9 @@ . + diff --git a/en-US/images/antenna-xnec2c/Yagi.png b/en-US/images/antenna-xnec2c/Yagi.png index 3f142de..f024cf3 100755 Binary files a/en-US/images/antenna-xnec2c/Yagi.png and b/en-US/images/antenna-xnec2c/Yagi.png differ diff --git a/en-US/images/antenna-xnec2c/xnec2c-plots.png b/en-US/images/antenna-xnec2c/xnec2c-plots.png new file mode 100644 index 0000000..c2ebff5 Binary files /dev/null and b/en-US/images/antenna-xnec2c/xnec2c-plots.png differ diff --git a/en-US/images/antenna-xnec2c/xnec2c-radiation.png b/en-US/images/antenna-xnec2c/xnec2c-radiation.png new file mode 100644 index 0000000..1c80c95 Binary files /dev/null and b/en-US/images/antenna-xnec2c/xnec2c-radiation.png differ diff --git a/en-US/images/antenna-xnec2c/xnec2c-structure.png b/en-US/images/antenna-xnec2c/xnec2c-structure.png new file mode 100644 index 0000000..839f30d Binary files /dev/null and b/en-US/images/antenna-xnec2c/xnec2c-structure.png differ diff --git a/en-US/images/antenna-xnec2c/xnec2c.png b/en-US/images/antenna-xnec2c/xnec2c.png new file mode 100644 index 0000000..e6296e1 Binary files /dev/null and b/en-US/images/antenna-xnec2c/xnec2c.png differ