[aprssig] PHG in APRS and Xastir?

[Stan - N0YXV]

I know this was discussed ad nauseum before but you can't have a negative
PHG. To have a negative PHG your saying you don't have any coverage and
wouldn't that be the same as not having a station? Height Above Average
Terrain in the APRS spec isn't the same thing as HAAT in the FCC sense of
the word. To synopsis the long previous discussion PHG isn't a science it's
only relative and very relative at that. Instead of using the phrase "Height
Above Average Terrain" it probably should have said, "Roughly what's the
height of your tower compared to things close by"...but that would be too
wordy. ;-D

> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org
> [mailto:aprssig-bounces at lists.tapr.org]On Behalf Of Curt, WE7U
> Sent: Thursday, May 11, 2006 10:59 AM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] PHG in APRS and Xastir?
>
>
> On Thu, 11 May 2006, VE7GDH wrote:
>
> > My opinion would that it would be far more useful to just use a
> topo map or
> > have a topo map underlay and use my own judgement for the
> probable coverage
> > of a station.
>
> Better yet, calculate it using "Splat!" and DEM (Digital Elevation
> Model) files.  That's how I came up with -450ft HAAT for my house.
>
> --
> Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
> "Lotto:    A tax on people who are bad at math." -- unknown
> "Windows:  Microsoft's tax on computer illiterates." -- WE7U
> "The world DOES revolve around me:  I picked the coordinate system!"
>
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