Larry wrote in :

. All ships transiting Canal waters
that are over 300 net tons or more than 60-feet in length must now be
equipped with an AIS system that meets the standards set by the
International Maritime Organization (IMO).

-- Geoff

"Geoff Schultz" wrote in message
6...
Larry wrote in :

. All ships transiting Canal waters
that are over 300 net tons or more than 60-feet in length must now be
equipped with an AIS system that meets the standards set by the
International Maritime Organization (IMO).

-- Geoff

Note: IMO requires DGPS to the AIS, not a WAAS GPS. We have had yacht
customers (over 60 feet) equipped with WAAS GPS refused transit of the
canal. The AIS reports the type of GPS it is using.

Doug K7ABX

"Doug" wrote in
nk.net:

Note: IMO requires DGPS to the AIS, not a WAAS GPS. We have had yacht
customers (over 60 feet) equipped with WAAS GPS refused transit of the
canal. The AIS reports the type of GPS it is using.

Doug K7ABX


Wonder why WAAS is refused? Maybe it has something to do with the RF view
of the sky in the ditch between the mountains obstructing view of the WAAS
birds.

--
Larry

This jerk called my cellphone and was nasty.
Continental Warranty -- MCG Enterprises -- Mepco-
24955 Pacific Coast HWY Suite C303
Malibu California 90265
888-244-0925
Fax: 310-456-8844
Email:
Read about them he
http://www.ripoffreport.com/view.asp...3&view=printer

Have you gone through the Canal? If so, explain what mountains you noticed.
I didn't see any mountains, but I did see and experience a "Cut". The cut
was a bit narrow, but not for a medium sized sailboat. We spent an
overnight in the big lake, caught a few fish, had a great dinner and pressed
on the following morning. The canal is not a navigational thing, it is
nothing more than mere piloting. That said, I'm aware the transit price has
gone up considerably since my transit in the mid "90's".

"FMac" wrote in
:


Have you gone through the Canal? If so, explain what mountains you
noticed. I didn't see any mountains, but I did see and experience a
"Cut". The cut was a bit narrow, but not for a medium sized sailboat.
We spent an overnight in the big lake, caught a few fish, had a great
dinner and pressed on the following morning. The canal is not a
navigational thing, it is nothing more than mere piloting. That said,
I'm aware the transit price has gone up considerably since my transit
in the mid "90's".




Never been through the canal. My post was from a news item I found on a
maritime website. The idea was the canyon it's in may cause poor reception
of WAAS satellite correction data.

--
Larry

This jerk called my cellphone and was nasty.
Continental Warranty -- MCG Enterprises -- Mepco-
24955 Pacific Coast HWY Suite C303
Malibu California 90265
888-244-0925
Fax: 310-456-8844
Email:
Read about them he
http://www.ripoffreport.com/view.asp...3&view=printer

On Wed, 13 Jul 2005 22:02:44 -0400, Larry wrote:

"FMac" wrote in
:


Have you gone through the Canal? If so, explain what mountains you
noticed. I didn't see any mountains, but I did see and experience a
"Cut". The cut was a bit narrow, but not for a medium sized sailboat.
We spent an overnight in the big lake, caught a few fish, had a great
dinner and pressed on the following morning. The canal is not a
navigational thing, it is nothing more than mere piloting. That said,
I'm aware the transit price has gone up considerably since my transit
in the mid "90's".




Never been through the canal. My post was from a news item I found on a
maritime website. The idea was the canyon it's in may cause poor
reception of WAAS satellite correction data.

Ideas are fine but modern science dictates one dismisses ideas and rejects
theories that do not apply.

In this case the idea that the Gatun Cut causes GPS satellite visibility
issues is nonsense and the idea must be rejected and deleted from your
knowledge base.

The cut is far from a canyon with steep walls. There is plenty of sky for
the GPS to see satellites.

WAAS has nothing to do with it.

Our primitive 1995 vintage Garmin 45 pseudo-tracker multiplexed GPS worked
just fine when we went through the Gatun Cut in January of 1998.

"Anchor" wrote in message
news
On Wed, 13 Jul 2005 22:02:44 -0400, Larry wrote:

"FMac" wrote in
:


Have you gone through the Canal? If so, explain what mountains you
noticed. I didn't see any mountains, but I did see and experience a
"Cut". The cut was a bit narrow, but not for a medium sized sailboat.
We spent an overnight in the big lake, caught a few fish, had a great
dinner and pressed on the following morning. The canal is not a
navigational thing, it is nothing more than mere piloting. That said,
I'm aware the transit price has gone up considerably since my transit
in the mid "90's".




Never been through the canal. My post was from a news item I found on a
maritime website. The idea was the canyon it's in may cause poor
reception of WAAS satellite correction data.

Ideas are fine but modern science dictates one dismisses ideas and rejects
theories that do not apply.

In this case the idea that the Gatun Cut causes GPS satellite visibility
issues is nonsense and the idea must be rejected and deleted from your
knowledge base.

The cut is far from a canyon with steep walls. There is plenty of sky for
the GPS to see satellites.

WAAS has nothing to do with it.

Our primitive 1995 vintage Garmin 45 pseudo-tracker multiplexed GPS worked
just fine when we went through the Gatun Cut in January of 1998.

You don't have to be in a canyon to have WAAS problems.
I live in Nanaimo which is on the East side of Vancouver Island. We have
high land to the west and my Garmin GPSMap 182 cannot get a WAAS signal in
my marina. It receives GPS satellite signals without trouble but the WAAS
satellites are low in the south-west and apparently the hills shadow this
signal. Further away from shore I can pick up WAAS signals.

On Fri, 15 Jul 2005 11:39:51 -0400, Anchor
wrote:

In this case the idea that the Gatun Cut causes GPS satellite visibility
issues is nonsense and the idea must be rejected and deleted from your
knowledge base.

The cut is far from a canyon with steep walls. There is plenty of sky for
the GPS to see satellites.

WAAS has nothing to do with it.

Our primitive 1995 vintage Garmin 45 pseudo-tracker multiplexed GPS worked
just fine when we went through the Gatun Cut in January of 1998.


FWIW
The only place we have lost GPS reception was during transiting the Corinth
Canal in Greece.

Peter

"FMac" wrote in
:

Have you gone through the Canal? If so, explain what mountains you
noticed. I didn't see any mountains, but I did see and experience a
"Cut". The cut was a bit narrow, but not for a medium sized sailboat.
We spent an overnight in the big lake, caught a few fish, had a great
dinner and pressed on the following morning. The canal is not a
navigational thing, it is nothing more than mere piloting. That said,
I'm aware the transit price has gone up considerably since my transit
in the mid "90's".

I'm not sure if this was addressed to me, but yes, I have. Here are photos
for anyone who's interested.

http://www.geoffschultz.org/2002_Sai...nal/index.html

-- Geoff

"Doug" wrote in news:vWcBe.2938$dU3.544
@newsread2.news.pas.earthlink.net:


"Geoff Schultz" wrote in message
6...
Larry wrote in :

. All ships transiting Canal waters
that are over 300 net tons or more than 60-feet in length must now be
equipped with an AIS system that meets the standards set by the
International Maritime Organization (IMO).

-- Geoff

Note: IMO requires DGPS to the AIS, not a WAAS GPS. We have had yacht
customers (over 60 feet) equipped with WAAS GPS refused transit of the
canal. The AIS reports the type of GPS it is using.

Doug K7ABX

What's also interesting is that the closest DGPS signal to Panama comes
from Puerto Rico and doesn't make it that far...

-- Geoff