[Antennaware] plot comparisons

[K9AY]

Most graphics programs let you rotate, flip and change colors. 

One handy action is to show all patterns of directional arrays -- e.g. to show the four directions of a 4-square, I simply take the original plot, copy, rotate and pick another color. The final result is an at-a-glance view of all directions, with 3 dB points, overlap, null locations, etc. easy to identify. 

Whenever there is symmetry, It's usually easier to do this graphically than to re-do the EZNEC file.

Garry
K9AY


  ----- Original Message ----- 
  From: Terry Conboy 
  To: K9AY 
  Cc: David Gould 
  Sent: Friday, November 13, 2009 12:46 PM
  Subject: Re: plot comparisons


  I tried Gary's approach of using an external graphic program with the simple "Paint" program that is included in Win XP.  From the 2D plot window in EZNEC, I used Edit - Copy Plot, then pasted the plot image into Paint.  Then I opened the second antenna file, ran FF Plot and repeated Edit - Copy Plot and pasted the second image directly on top of the first plot in Paint.  If you uncheck the Image - Draw Opaque option in Paint, you will see the two plots overlaid on each other with the same max relative gain.  If you want, you can then do File - Save As in your choice of graphic format.  (A .gif works pretty well for line plots like this.)

  73, Terry N6RY