[B R-I] Re: W279BQ-103.7 On-Air (Where?); New Pirate On 94.9?

[Garrett Wollman]

<<On Wed, 14 Jul 2010 11:57:45 -0700, "Linc Reed-Nickerson" <linc@reed-nickerson.com> said:

> It's not Google maps that's off, it depends on which NAD (North American
> Datum) was used for the coordinates.  NAD 27 or NAD 83.

Actually, on-line mapping services generally use WGS84, the GPS datum,
rather than NAD83.  (However, WGS84 was constructed so as to make most
coordinates that are defined in NAD83 identical in WGS84, so in
practice you can ignore the difference, unless you're dealing with
parts of the U.S. that aren't covered by NAD83.  Which datum does the
FCC require for stations in American Samoa?)

> In some cases the coordinates were wrong to errors in local base maps, the
> USGS isn't perfect, or in others the applicant simply took a SWAG at the
> coordinates and got them wrong.

In theory, the applicant was supposed to hire a surveyor to make sure
that the tower was constructed at the coordinates specified on the
application.

-GAWollman