Simple yagi for test runs.
 144.000 144.1 146.0  MHz
 6 elements, millimeters
           10.000
     .000  508.405      Corrected(-7):   1009.8
  339.487  457.919      Corrected(-7):    908.8
  417.836  469.587      Corrected(-7):    932.2
  987.846  462.842      Corrected(-7):    918.7
 1781.874  456.782      Corrected(-7):    906.6
 2549.145  460.792      Corrected(-7):    914.6


Same format as YO by K6STI.
One or three frequencies should be given.
If 3 frequencies given:
The center freq is used for opt and calc.
For frequency stepping (MODE.DAT=1)
The first frequency gives step size as offset from center freq.
The last frequency gives freq span to step over.