[amsat-bb] Proximity to grid line boundary

[tjschuessler at verizon.net]

Which is obviously why it is a lot harder to hit a 4 corners location
because it will invariably plop you in a grove of dense vegetation.  I will
stick with the two grid on the line on a main rod thing because I can get it
right.

From: Michael Whitman <michael at n4dcw.com> 
Sent: Saturday, August 29, 2020 11:54 AM
To: AMSAT BB <amsat-bb at amsat.org>
Cc: Don KB2YSI <kb2ysi at gmail.com>; Tom Schuessler <tjschuessler at verizon.net>
Subject: Re: [amsat-bb] Proximity to grid line boundary

You should operate at the spot where your GPS receiver (using the
settings/rules that Don highlighted) reads out *.000000 for a line or
*.000000, *.000000 for a corner. 

73,
Michael, N4DCW

--

Michael Whitman
mailto:michael at n4dcw.com
Home Grid: EM78


On Aug 29, 2020, at 12:46 PM, Don KB2YSI via AMSAT-BB
<mailto:amsat-bb at amsat.org> wrote:

The VUCC rules (
http://www.arrl.org/files/file/Awards/VUCC%20Rules%20April%202020.pdf)
state:

(F) Grid boundary lines and grid corners must be established using a GPS
receiver whose map datum is set to WGS84, the global default for curif nt
GPS receivers. The GPS receiver should be set to use WAAS (Wide Area
Augmentation System) if so equipped, since this improves the error figure
to as little as 5 feet. In no case may the GPS receiver show an error
figure in excess of 20 feet. Any modern GPS receiver equipped with WAAS
will easily meet this requirement, as will most older
units without WAAS.

On Sat, Aug 29, 2020, 12:37 Tom Schuessler, N5HYP via AMSAT-BB <
mailto:amsat-bb at amsat.org> wrote:


For my information, as I am not much of a rover, but  as I may be doing a
little local grid rove sometime next weekend by request, how far from a
grid
boundary can you be for it to count?  I found a 4 corners grid boundary in
my area, but it is way rural in a deep clump of vegetation with a dirt road
a couple hundred feet away.  What is the maximum deviation from an X
.000000; Y.000000 location for it to be legal as a 4 grid location?  I will
probably do a much easier 2 grid line location, but just wondering.

Thanks much.

Tom Schuessler, N5HYP
EM12ms



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