New YagiCAD6.1.6


Changes 6.1.6
Bug fix release.
1.	Fixed a bug that had got into the Genetics bits that was causing unpredicatble results.
2.	Added config file for frequency band edges. If found "banddata.txt" in main directory is 
-       used rather than default Australian ones. see example file for format.


Changes 6.1.5
1.	Replaced Fortran based NEC2SX/DX engine with Open Source C++ version of 
NEC2.(Compiled using free MS C++ 2008 Express)
-	No arbitrary segment etc. limits just available memory limits
-	Double precision only
-	Depending on CPU can be 2-3 times faster on large models.
2.	Added new element models of folded dipole and multi-element
3.	A few minor bug fixes.

Changes 6.02
1. Added support for country specific decimal point value, and in particular "," 
in stead of "."
2. Minimum of VSWR graph in Overall now 1 rather than 0.
3. A couple of minor bugs fixed.
4. Install package which registers file types and creates shorrtcuts etc.


Changes 6.0:
1.	Re-written using the free development package Microsoft VB.NET Express 
2008.  More Windows standard interface, now requires MS.Net runtime 2.0 
(for pre Win XP) or 3.5 (for post Win XP) rather than VB5 runtime as per 
YagiCAD5.x
2.	Removed YagiCAD classic engine, now only NEC2 available but choice of 
SX (single precision as in YagiCAD5) or new DX Double precision.
3.	NEC2 engines recompiled with larger limits now allowing up to 40 elements, 
2000 segments, or 100 non-ideal wires, whichever limit is reached first.
4.	Still only a single driven element, but it can now be in any position in 
antenna 
from first to last. Ie antennas of a single driven element are now possible, eg 
dipole, as well as ones with multiple reflectors.
5.	Elements can now be either a simple dipole, or a square quad shape. 
Elements 
can be set individually to each type allowing for various combinations giving 
standard Yagis, Quads, or Quagys
6.	Dimensions used for display and editing can now be set to be in Metres, 
Inches, or Wavelengths. All internal calculations and saving of data is done in 
Metres.
7.	New file extension .YC6 used to save antennas with new features,   
YagiCAD can still open/read .YAG files but not save them as other than 
.YC6.
8.	The YagiCAD6 exe now accepts a filename as a command line parameter 
enabling .YC6 and .YAG files to be associated in windows with the exe 
for double clicking on a file and opening in YagiCAD.
9.	New Yagi Viewer menu to give 3D view of antenna model under design.
10.	Simplified and expanded genetic Optimization subsystem. Configuration of 
options now done by selecting options on a page rather than editing a text file. 
New options include improved weighting process with optional 
reference/normalization to either the ancestor antenna or some idealized target.
11.	Improved Model tests with segment convergence now graphed within the 
application to show effects of increasing segments, and in addition inclusion 
of the standard Average Gain Test.
12.	A number of other visual tweaks, oh and yes its still free, however it is 
a .0 
release after a major rewrite so there may well be bugs etc. I havent yet found 
so take some care to make backups etc.


Install.


Manual from Zip file.

Save all the files of the distribution in a suitable directory. The EXEs, OPT, 
GEN, 
and RTF file/s should all be in this directory. The saved antenna models can be 
in the 
same directory or elsewhere if more convenient.

If you dont already have the MS DotNet framework installed this can be 
downloaded 
from the Microsoft.com website and installed as per instructions. For PCs with 
operating systems prior to Windows XP the file you are looking for is Dot Net 
Framework 2.0 Redistributable, for those with Windows XP or better the 3.5 
version 
is the way to go.

You can create an icon on your desktop to run YagiCAD by right clicking and 
dragging the exe to the Desktop and selecting create shortcut here.

You can also in a file view window select tools/folder options/file types and 
associate 
the .YAG, and .YC6 extensions with YagiCAD.exe.  Or alternately simply 
double click on a .YAG or .YC6 file and select program to open with as being 
YagiCAD.exe.

Automatic using setup file:

Download and run the setup.exe, follow the prompts.
For uninstal, use the link in the start menu, or control panel add remove 
programs.
In the case of an update the safest thing is to do an uninstall of the old 
version and then install the new. Be carefull this may delete any changes you 
have made to the example models.


Comments and Suggestions.

As usual I welcome any comments or suggestions about YagiCAD to 
VK3DIP@YAGICAD.COM


For those that way inclined Merry Christmas and,
73 Paul VK3DIP December 2009

