[aprssig] PHG calculators

Pentti Gronlund pentti.gronlund at tut.fi
Mon Jan 12 12:54:11 EST 2009

Robert Bruninga writes:

> Just so everyone understands, there was a weakness in the
> original SPEC about what follows the various 7 byte fields such
> as
> PHGxxxx
> DFSxxxx
> RNGxxxx

There is another weakness in the PHG notation where the front-to-back
ratio is left out to the reader's imagination. Consequently the offset
or directional patterns plotted out of PHG are quite speculative and 
not even close to useful.

Benjamin OH3BK
		Live Reports from the Taxman's Paradise!

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