> you please tell me what the make, model and so on is for your unit.
> Why did you buy this one instead of another? Can you upload and
> download data (way points/lat-log etc.) from your PC?
>
> Any comments, advice or experience anyone else wants to share would
be
> appreciated.
>
>
> Thanks,
>
> Russell Lahti
>
>
> ______________________________ Reply Separator
_________________________________
> Subject: Re: Calculated Hull Speed of P-19
> Author: Rdement1@aol.com at NP--INTERNET
> Date: 10/7/98 4:18 AM
>
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - -
> West Wight Potter Website at URL
> http://www.lesbois.com/wwpotter/
> - - - - - - - - - - - - - - - - - - - - - - - - - - -
> In a message dated 10/6/98 9:41:32 PM Pacific Daylight Time,
katze@nidlink.com
> writes:
>
> << I am under the impression that a GPS cannot give a reliable speed
> determination under 15 mph? >>
>
>
> Sometimes true, sometimes not. When the GPSIII gets into "3D mode"
(position
> +altitude), it is extremely accurate. (except altitude, which seems to
have a
> 300ft tolerance no matter what!)
>
> When I walk with it in my hand, it almost always reads 3 or so mph with
> acurate compass. When I stop it reads 0.0mph. Sometimes it will
fluctuate
> around 1mph. In my vehicle, I compare it at 20mph against the police
radar
> leaving the gate of US Navy Submarine Base Bangor, WA it always reads
> identical..
>
> There are many factors that affect GPS. S/A being the most influential
of
> course. No matter how much we may hate the government influencing 'our
toys',
> we are still tapping into 'their system'. (We just paid for it) The same
> system that guided 75 of our missiles a month or so ago within feet of
their
> targets. And the same system that may be 'shut off', or deliver
misleading
> information to keep 'non-friendly birdies' from coming within feet of
our
> backyards using our system against us.
>
> As everyone else who has put a large sum of money into their gps toys, I
would
> like mine to be as accurate as it possibly can. BUT, I still wouldn't
solely
> rely on it. GPS is a good ocean navigation tool. If you can't see any
land,
> it will give your approximate position. If you can see land, you are
better
> off taking a visual fix, and plotting on a NOAA chart. The same way every
US
> Navy ship (surface and sub) is still required to do. GPS (military
grade) and
> LORAN are only a reference for them.
>
> GPS is more accurate than what most will give credit. I have a waypoint
> programmed for my driveway. When I drive to work, to the mall, to the
boat
> ramp, etc then come home.... I am always within 10 feet of my exact lat
and
> long........ toys toys toys........
>
> Russ de Ment
> borrowed grandpas P-19
> Silverdale, WA
> Received: from tscnet.com (207.227.236.10) by ccmail.itd.nps.gov
with SMTP
> (IMA Internet Exchange 2.12 Enterprise) id 0014E30B; Wed, 7 Oct 98
04:21:00
> -0400
> Received: (from list@localhost) by tscnet.com (8.9.1a/8.7.3) id BAA08085;
Wed, 7
> Oct 1998 01:19:25 -0700
> Resent-Date: Wed, 7 Oct 1998 01:19:25 -0700
> From: Rdement1@aol.com
> Message-ID: <5f498c72.361b23e4@aol.com>
> Date: Wed, 7 Oct 1998 04:18:44 EDT
> To: wwpotter@tscnet.com
> Mime-Version: 1.0
> Subject: Re: Calculated Hull Speed of P-19
> Content-type: text/plain; charset=US-ASCII
> Content-transfer-encoding: 7bit
> X-Subliminal-Message: Please do not place attachments
> X-Mailer: to messages in the list.
> Resent-Message-ID: <"2Re5I3.0.4-1.CGo6s"@tscnet.com>
> Resent-From: wwpotter@tscnet.com
> X-Mailing-List: <wwpotter@tscnet.com> archive/latest/6004
> X-Loop: wwpotter@tscnet.com
> Precedence: list
> Resent-Sender: wwpotter-request@tscnet.com
>