GPS-an honest answer...?
 

In article ,
Captain Joe Redcloud wrote:
On Thu, 20 Oct 2005 00:46:58 GMT, "Capt.Mooron"
wrote:


"Captain Joe Redcloud" wrote in message
Garmin GPSMAP76s has a compass. You can even configure the unit so the
compass
automatically takes over when you have been below "X" speed for "X"
seconds.

Then it's a Fluxgate Compass on a GPS Receiver... GPS cannot give you
compass directions without movement. Deal with it.

CM


I don't have to deal with it, because I own a GPS that has an integrated
fluxgate compass. It also has integrated charts, and an integrated altimeter.
They all work together as one. If I ask you to hand me my GPS, you have to hand
me the compass, altimeter and charts with it. As the Buddists would say, they
are ONE.

And, it'll be the one you'll be crying about when you run aground,
because you lost it over the side.


--
"j" ganz @@
www.sailnow.com

GPS-an honest answer...?
 

In article HkC5f.37773$S4.734@edtnps84,
Capt.Mooron wrote:

"Capt. Rob" wrote in message
You're as paranoid as you are pavlovian. Bill no longer posts here in
any capacity. He has left the building.

H-m-m-m-m-m...care to reconsider that statement Bob? Are you claiming puppet
master status here? Has the person who now posts as "*/*Redcloud" not stated
exactly the same vessel, location and claims of one Binary Bill? I've been
gone for a long time but this was discussed a while ago before I got booted
from my ISP by Ganz.

I based my assessment on the evidence presented. I haven't seen anything
from this poster to alter that conclusion. Petty, Small and Malicious.....
did I miss Vindictive?

If you have any information to submit which would alter my viewpoint...
please fell free to produce it. No need to get offensive about it.

I was wondering when you would bring up that tired old horse. I don't
work for your ISP.





--
"j" ganz @@
www.sailnow.com

GPS-an honest answer...?
 

"DSK" wrote in message
.. .
Capt.Mooron wrote:
Then it's a Fluxgate Compass on a GPS Receiver...

Yep.

... GPS cannot give you compass directions without movement. Deal with
it.


Yes, it can. Deal with it.

http://www.mx-marine.com/downloads/m...nual_rev12.pdf

Scroll down to page 10, where it explains that this unit is two GPS
receivers in a fixed mount (it also has a gyro "in case of GPS signal
blockage).

The link seems to get blocked.... anyway if two GPS Recievers are
comunicating data you effectively have replicated " 2 waypoints"... or
"movement"..... after that it's a matter of calcs. I was referencing a
single GPS Reciever.


There is a similar suitcase-sized instrument for surveyors, but I can't
find a link to one.

There are several types. again it's remote receivers communicating with the
base unit. A single receiver can NOT give you bearing without alternate
input. You cannot point a single GPS to a bearing from a static position.
That's a fact Doug. Deal with it. :-)

BTW- don't let my years of experience in Total Station and GPS Survey curb
your opinion of my statements! :-)
You are aware of course that climatic conditions affect accuracy on GPS
Survey Receivers. You cannot get better than centimetre vertical accuracy on
dynamic receivers and Static Collectors are left for hours to download and
average data.

CM

GPS-an honest answer...?
 

Capt.Mooron wrote:
The link seems to get blocked....

That's a shame, it's an interesting gizmo.


... anyway if two GPS Recievers are
comunicating data you effectively have replicated " 2 waypoints"... or
"movement"..... after that it's a matter of calcs. I was referencing a
single GPS Reciever.


Sure, but you didn't *say* that.


There is a similar suitcase-sized instrument for surveyors, but I can't
find a link to one.


There are several types. again it's remote receivers communicating with the
base unit. A single receiver can NOT give you bearing without alternate
input.

Agreed.
Unless it's moving, in which case it "looks backwards" and uses those
pesky calculations again to derive heading.



That's a fact Doug. Deal with it. :-)


I have, many times.
Deal with it!

BTW- don't let my years of experience in Total Station and GPS Survey curb
your opinion of my statements! :-)

Not at all. You made an incorrect statement, probably an oversight by
not being quite technical enough. It's OK, nobody expects you to write a
book on how GPS works, and all the things it can (or can't) do, for the
benefit of a cretin like Bubbles/bitty-bill.

You are aware of course that climatic conditions affect accuracy on GPS
Survey Receivers.

Of course. It's a radio receiver, after all.

... You cannot get better than centimetre vertical accuracy on
dynamic receivers

Is that with optimum constellation geometry? I should think some of the
fancy wave interpolation antennae units could do better than that, but I
don't know (they're a bit out of my field & price range).

... and Static Collectors are left for hours to download and
average data.


You can do that with a small hand held too, if you've the patience for it.

DSK

GPS-an honest answer...?
 

"DSK" wrote in message

Not at all. You made an incorrect statement, probably an oversight by not
being quite technical enough. It's OK, nobody expects you to write a book
on how GPS works, and all the things it can (or can't) do, for the benefit
of a cretin like Bubbles/bitty-bill.

I prefer to assumed you misinterpreted my statement.... but let's not
quibble!.... I thought I was wrong once... turned out I was mistaken. :-)

Is that with optimum constellation geometry? I should think some of the
fancy wave interpolation antennae units could do better than that, but I
don't know (they're a bit out of my field & price range).

Simple cloud cover will greatly affect accuracy on our units. No matter what
the optimum accuracy potential is... the end result will be affected by
climatic conditions. One of our site units costs 80K. We had a 2 million
dollar unit shooting ball targets to verify 5 mm accuracy. It failed to
produce the accuracy and tolerences required.

CM

GPS-an honest answer...?
 

I have a Schipperke, ......remember you jumped my ass about cut off
tails?
My Dog Skipper is the best! Be ready .....they like to keep you quite
busy.
You will never have a more loyal dog.

Joe

GPS-an honest answer...?
 

"Jonathan Ganz" wrote

I was wondering when you would bring up that tired old horse. I
'm
getting horny.


That's another thread, Jon.

GPS-an honest answer...?
 

"Captain Joe Redcloud" wrote in message
On Thu, 20 Oct 2005 00:57:31 GMT, "Capt.Mooron"

wrote:

Binary Bill has become small, petty and malicious. He is his own worst
enemy.

Guy Aerts, professional dumb****


Whatever

Bwahahahahahahaaa.... Oh Billy! Petty Ole' Bean... very petty! You just
don't get it do you? Go ahead... be as petty as you wish, be malicious and
vindictive. It's not as if you had a well stocked arsenal of wit at your
disposal... I know you long to be the "Bad Boy" that is admired within
public circles.... it's just rather unfortunate that you are incapable of
differentiating between good taste and poor judgement. I bet that goblin has
followed you all your life.

CM

GPS-an honest answer...?
 

Bwahahahahahahaaa.... Oh Billy!


Billy? This is like Doug thinking I have sockpuppets. Scary.


RB

GPS-an honest answer...?
 

"Capt. Rob" wrote
How many of you rely on your GPS without consulting charts these days?
How many of you back that up by using a handheld compass?....

I do. I use charts to plan cuz it's easier for me. Then I use a PC to plot
courses which I load into my cockpit GPS, which then provides a continuous
display of current position relative to plan, hazards, depth, et al and
automatically scrolls. Makes "driving" the boat a snap. The boat has a
compass that I steer by (tacks may criss-cross the planned course shown on
the GPS). I keep a laptop connected to a separate GPS in the cabin for
backup and a bigger picture than the GPS screen provides plus charts on the
Nav desk to note interesting data for future use, but I do not maintain
current track on charts. My health limits us to day sails, and not even
that lately - were we taking longer trips I'd update the charts every few
hours just for drill. I've checked GPS position against charted position of
bouys, et cetera, and found it always within a few yards - mucho better than
I can do using a compass to triangulate position but y'all good sailors
prolly have better results than I.