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Logging of position and (if possible) depth

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NadCixelsyd

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Sep 24, 2009, 12:57:23 PM9/24/09
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Several Garmins output NMEA data to a cable which can be hooked to a
computer. Does any Garmin output the data to a SD (or other) card?

Chull13

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Sep 24, 2009, 1:12:38 PM9/24/09
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I am pretty sure any of their models where the model number ends with
an X support SD cards.
The ones I looked at were microSDHC though I think one or two were
normal sized SDHC.

Jack Erbes

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Sep 24, 2009, 3:00:17 PM9/24/09
to
NadCixelsyd wrote:
> Several Garmins output NMEA data to a cable which can be hooked to a
> computer. Does any Garmin output the data to a SD (or other) card?
>

Many of them will record tracks. Data for each track point would
include a lat/long position, date and time, and the GPS estimated or
barometric elevation. So if you look at the specs for a given model and
it has a track point capacity listed it will store that number of track
points (2,000 to 10,000).

Some of the models use an automatic track point collection rate to where
the frequency of collection is determined by the frequency of the
heading changes.

On some of the handhelds you can set the collection rate for track
points as either a interval of time (1 second or longer) or distance
(0.01 miles or or kilometers or more).

Any of the handhelds that have an "x" in their model name (76Cx for
example) have a microSD card in them and the track points collected can
be logged to a *.gpx file if desired a long as there is free space on
the card. That collection can go on for any period of time as long as
there is space. The *.gpx files (one file for each calendar day) can be
retrieved from the card with a PC and the points viewed in any of a
number of softwares.

The handhelds with the option to log track data to the microSD card
would be the most capable of any of the Garmins as far as the frequency
of collection and the period of time or distance they can collect. That
presumes that some one is insuring that the batteries are changed every
12 to 18 hours or so. An external (9-35V DC) power source can be used.

Jack

Jack Erbes

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Sep 24, 2009, 3:03:48 PM9/24/09
to
NadCixelsyd wrote:
> Several Garmins output NMEA data to a cable which can be hooked to a
> computer. Does any Garmin output the data to a SD (or other) card?
>

Many of them will record tracks. Data for each track point would

Jack Erbes

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Sep 24, 2009, 3:07:39 PM9/24/09
to
NadCixelsyd wrote:
> Several Garmins output NMEA data to a cable which can be hooked to a
> computer. Does any Garmin output the data to a SD (or other) card?
>

Many of them will record tracks. Data for each track point would

include a lat/long position, date and time, and the GPS estimated or
barometric elevation. So if you look at the specs for a given model and
it has a track point capacity listed it will store that number of track
points (2,000 to 10,000).

Some of the models use an automatic track point collection rate to where
the frequency of collection is determined by the frequency of the

heading changes.On some of the handhelds you can set the collection rate

for track points as either a interval of time (1 second or longer) or
distance (0.01 miles or or kilometers or more).

Any of the handhelds that have an "x" in their model name (76Cx for
example) have a microSD card in them and the track points collected can

be logged to a *.gpx file if desired as long as there is free space on

the card. That collection can go on for any period of time as long as

there is free space on the memory card. The *.gpx files (one file for

ps56k

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Sep 24, 2009, 4:28:34 PM9/24/09
to

"NadCixelsyd" <nadci...@aol.com> wrote in message
news:5947da81-e5b2-4484...@p15g2000vbl.googlegroups.com...

> Several Garmins output NMEA data to a cable which can be hooked to a
> computer. Does any Garmin output the data to a SD (or other) card?
>
It would be better to explain your project or situation.

Since you also included the word "depth"
which would imply underwater -
and GPS signals (satellite microwaves)
do not do well beyond the surface....

If you were thinking of diving with a GPS
to mark a location - that is a totally different world,
since you have pressure, etc to contend with...

NadCixelsyd

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Sep 24, 2009, 9:13:52 PM9/24/09
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On Sep 24, 8:28 pm, "ps56k" <pschuman_no_spam...@interserv.com> wrote:
> "NadCixelsyd" <nadcixel...@aol.com> wrote in message

>
> news:5947da81-e5b2-4484...@p15g2000vbl.googlegroups.com...> Several Garmins output NMEA data to a cable which can be hooked to a
> > computer.  Does any Garmin output the data to a SD (or other) card?
>
> It would be better to explain your project or situation.
>

I wish to map the bottom of a lake with a boat. The GPS would have a
sounder.

Thomas

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Sep 25, 2009, 1:46:58 AM9/25/09
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Included in the track log, is the recorded depth provided depth info is
present.
Regards
Thomas


"NadCixelsyd" <nadci...@aol.com> skrev i en meddelelse
news:2bf15cb5-6fb0-4cff...@33g2000vbe.googlegroups.com...

Mike Coon

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Sep 25, 2009, 4:06:10 AM9/25/09
to
Thomas wrote:
> Included in the track log, is the recorded depth provided depth info
> is present.
> Regards
> Thomas

This is probably why the Garmin track transfer format includes both altitude
and depth, which otherwise seems a bit redundant...

Mike.
--
If reply address is invalid, remove spurious "@" and substitute "plus"
where needed.


ps56k

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Sep 27, 2009, 10:37:29 PM9/27/09
to

"NadCixelsyd" <nadci...@aol.com> wrote in message
news:2bf15cb5-6fb0-4cff...@33g2000vbe.googlegroups.com...

As this is a totally new type of discussion for me,
was wondering what kind of setup do you envision ?

Having never played with a "fish finder" device,
was wondering if they have a GPS feature,
and for the lake mapping aspect,
- how do you intend to capture the GPS lat/lon PLUS the depth info ?
Lastly - what is the end result ? a depth map ? How would you create it ?

Just curious - as always willing to learn a little something different &
new...

Happy Trails

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Sep 28, 2009, 5:26:51 AM9/28/09
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What kind of a post is this? The message below is all I have of this
thread. Where is the beginning of it? To the original poster, please
post a new message with your original questions directly on usenet and
lose the confusion.
==================

Mike Coon

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Sep 28, 2009, 4:54:50 AM9/28/09
to
Happy Trails wrote:
> What kind of a post is this? The message below is all I have of this
> thread. Where is the beginning of it? To the original poster, please
> post a new message with your original questions directly on usenet and
> lose the confusion.
> ==================

I'm reading "directly on usenet" and not via any web consolidation and don't
think I missed out on the beginning, so perhaps your problem is with your
feed (or even attention/retention), not the originator.

I've already replied light-heartedly re altitude and depth both being in
Garmin's D301 track point transfer protocol. The interface spec says:
"Example products: GPSMAP 162/168, eMap, GPSMAP 295." And also: "The 'alt'
and 'dpth' members may or may not be supported on a given unit.". Assuming
that there are no Garmin's with a direct depth-sounding input (though I
could very well be wrong there) the depth would have to be fed to it through
another protocol such as NMEA. Having recorded the depth with the lat/long
reading in the track log, the log would be extracted using the Garmin's own
"Grmn" protocol.

Happy Trails

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Sep 28, 2009, 8:24:30 AM9/28/09
to
On Mon, 28 Sep 2009 09:54:50 +0100, "Mike Coon" <Mike@@mjcoon.+.com>
wrote:

>I'm reading "directly on usenet" and not via any web consolidation and don't
>think I missed out on the beginning, so perhaps your problem is with your
>feed (or even attention/retention), not the originator.

Thanks Mike I'll look into it at my end.

Mike Coon

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Sep 28, 2009, 9:15:00 AM9/28/09
to

Perhaps I should retract (already, so soon...). When I turn on "see all
posts" I cannot see one without the "Re: ", so maybe this is one of those
orphan threads...

Charles

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Sep 28, 2009, 9:36:58 AM9/28/09
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On Mon, 28 Sep 2009 14:15:00 +0100, "Mike Coon" <Mike@@mjcoon.+.com>
wrote:

>Happy Trails wrote:
>> On Mon, 28 Sep 2009 09:54:50 +0100, "Mike Coon" <Mike@@mjcoon.+.com>
>> wrote:
>>
>>> I'm reading "directly on usenet" and not via any web consolidation
>>> and don't think I missed out on the beginning, so perhaps your
>>> problem is with your feed (or even attention/retention), not the
>>> originator.
>>
>> Thanks Mike I'll look into it at my end.
>
>Perhaps I should retract (already, so soon...). When I turn on "see all
>posts" I cannot see one without the "Re: ", so maybe this is one of those
>orphan threads...
>
>Mike.


Which group are you reading? this thread started in
alt.satellite.gps.garmin,
then
sci.geo.satellite-nav was added later.
Reading only sci.geo.satellite-nav loses the original message.

Wayne R.

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Sep 28, 2009, 10:59:16 AM9/28/09
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I've asked about this in the past and was turned onto this:

<http://www.nrri.umn.edu/toolik/lakedepth/intro.html>

But I discovered the whole effort I was about to launch myself on was
sorta pointless - our state's DNR had excellent contour maps of all
the lakes I was thinking about mapping myself.

On Sun, 27 Sep 2009 21:37:29 -0500, "ps56k"

<pschuman_...@interserv.com> wrote (with clarity & insight):

Happy Trails

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Sep 28, 2009, 1:07:53 PM9/28/09
to
On Mon, 28 Sep 2009 10:59:16 -0400, Wayne R. <wruf...@KomKast.net>
wrote:

>I've asked about this in the past and was turned onto this:
>
><http://www.nrri.umn.edu/toolik/lakedepth/intro.html>
>
>But I discovered the whole effort I was about to launch myself on was
>sorta pointless - our state's DNR had excellent contour maps of all
>the lakes I was thinking about mapping myself.
>

FYI for anyone who ever wants to do this, I used to use - even for
cheap-ass commercial use on occasion - a model of Furuno depth sounder
that cost way under $1000 10 years ago, and put out a proper NMEA
depth message that any other NMEA-capable instrument could use.

I used to put it into a PC using my own survey software, but I suppose
one could always put it into a gps capable of logging position and
depth. My stuff was always on salt water, so I had tidal corrections,
and heave, pitch & roll to smooth out.

Rod Speed

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Sep 28, 2009, 1:30:29 PM9/28/09
to
Happy Trails wrote:

> What kind of a post is this?

The addition of a newsgroup kind.

> The message below is all I have of this thread. Where is the beginning of it?

http://groups.google.com/group/alt.satellite.gps.garmin/browse_frm/thread/89fa6c150e32a3bf/fa5ae7a40213327a
http://groups.google.com/group/alt.satellite.gps.garmin/browse_frm/thread/89fa6c150e32a3bf/7e5db5a07f2670a5

> To the original poster, please post a new message with your
> original questions directly on usenet and lose the confusion.

You can find it yourself using groups.google.

Gene E. Bloch

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Sep 28, 2009, 8:29:29 PM9/28/09
to
On 9/28/09, Happy Trails posted:

> What kind of a post is this? The message below is all I have of this
> thread. Where is the beginning of it? To the original poster, please
> post a new message with your original questions directly on usenet and
> lose the confusion.
> ==================

Your headers include - in the references header - the first post of
this thread. You could use that to track it down.

I see the whole thread.

I would bet that what Charles said about someone's adding to the
cross-post list is exactly the cause of your problem.


> On Sun, 27 Sep 2009 21:37:29 -0500, "ps56k"
> <pschuman_...@interserv.com> wrote:

>>
>> "NadCixelsyd" <nadci...@aol.com> wrote in message
>> news:2bf15cb5-6fb0-4cff...@33g2000vbe.googlegroups.com...
>> On Sep 24, 8:28 pm, "ps56k" <pschuman_no_spam...@interserv.com> wrote:
>>> "NadCixelsyd" <nadcixel...@aol.com> wrote in message
>>>
>>> news:5947da81-e5b2-4484...@p15g2000vbl.googlegroups.com...>
>>> Several Garmins output NMEA data to a cable which can be hooked to a
>>>> computer. Does any Garmin output the data to a SD (or other) card?
>>>
>>> It would be better to explain your project or situation.
>>>
>>
>> I wish to map the bottom of a lake with a boat. The GPS would have a
>> sounder.
>>
>> As this is a totally new type of discussion for me,
>> was wondering what kind of setup do you envision ?
>>
>> Having never played with a "fish finder" device,
>> was wondering if they have a GPS feature,
>> and for the lake mapping aspect,
>> - how do you intend to capture the GPS lat/lon PLUS the depth info ?
>> Lastly - what is the end result ? a depth map ? How would you create it ?
>>
>> Just curious - as always willing to learn a little something different &
>> new...

--
Gene Bloch 650.366.4267 lettersatblochg.com


Gene E. Bloch

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Sep 28, 2009, 8:50:46 PM9/28/09
to
On 9/28/09, Gene E. Bloch posted:

> On 9/28/09, Happy Trails posted:
>> What kind of a post is this? The message below is all I have of this
>> thread. Where is the beginning of it? To the original poster, please
>> post a new message with your original questions directly on usenet and
>> lose the confusion.
>> ==================

> Your headers include - in the references header - the first post of this
> thread. You could use that to track it down.

> I see the whole thread.

> I would bet that what Charles said about someone's adding to the cross-post
> list is exactly the cause of your problem.

Addendum: the thread is incomplete in this newsgroup,
(alt.satellite.gps.magellan), whereas it was complete where I first
responded to you (alt.satellite.gps.garmin).

Also, the OP's post was not cross-posted.

This would seem to totally corroborate Charles's hypothesis.

Happy Trails

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Sep 28, 2009, 10:12:43 PM9/28/09
to
On Mon, 28 Sep 2009 17:50:46 -0700, Gene E. Bloch
<let...@someplace.invalid> wrote:

>Also, the OP's post was not cross-posted.
>

Congatulations - you figured out why I was ticked off about it in the
first place!

What kind of a dumbass would add other groups when responding to a
post?

Gene E. Bloch

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Sep 29, 2009, 12:10:08 AM9/29/09
to
On 9/28/09, Happy Trails posted:

Oh, maybe someone who likes to see you get ticked off.

Rod Speed

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Sep 29, 2009, 1:52:22 PM9/29/09
to
Happy Trails wrote

> Gene E. Bloch <let...@someplace.invalid> wrote

>> Also, the OP's post was not cross-posted.

> Congatulations - you figured out why I was ticked off about it in the first place!

> What kind of a dumbass would add other groups when responding to a post?

Someone who has decided that the extra groups are appropriate, stupid.


Happy Trails

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Sep 29, 2009, 7:45:19 PM9/29/09
to
On Wed, 30 Sep 2009 03:52:22 +1000, "Rod Speed"
<rod.sp...@gmail.com> wrote:


>Someone who has decided that the extra groups are appropriate, stupid.
>

What kind of an asshole would add extra groups to a response without
including the original post?

Who's stupid now, dipshit?

Sunshine

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Sep 29, 2009, 7:15:47 PM9/29/09
to
On Tue, 29 Sep 2009 18:45:19 -0500, Happy Trails <nom...@myplace.com>
wrote:

You must be a Usenet newbie if this is new and confusing for you.
Adding and removing groups as a thread progresses is common, normal,
and should not be a cause for concern. The References header should
always lead you back to the source, if you're so inclined.

>Who's stupid now, dipshit?

Probably best if you didn't ask that question. :)

Happy Trails

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Sep 30, 2009, 6:57:17 AM9/30/09
to
On Tue, 29 Sep 2009 18:15:47 -0500, Sunshine <suns...@none.invalid>
wrote:

>Adding and removing groups as a thread progresses is common, normal,

No, Sunshine, it isn't!

Referring the OP to another group, if someone thinks that other group
is a more suitable place to ask a question, is common and normal.

Arbitrarily adding other groups to a response in mid-thread is
illogical, abnormal and uncommon, and rarely seen on usenet, with a
possible exception being users of GPS devices, hahahahaha!

Rod Speed

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Sep 30, 2009, 2:51:02 PM9/30/09
to
Happy Trails wrote
> Rod Speed <rod.sp...@gmail.com> wrote

>> Happy Trails wrote
>>> Gene E. Bloch <let...@someplace.invalid> wrote

>>>> Also, the OP's post was not cross-posted.

>>> Congatulations - you figured out why I was ticked off about it in the first place!

>>> What kind of a dumbass would add other groups when responding to a post?

>> Someone who has decided that the extra groups are appropriate, stupid.

> What kind of an asshole would add extra groups to a response without including the original post?

Someone who realises that its completely trivial for anyone with even half a clue to
use the headers or groups.google to find the original if they want to read it, stupid.

> Who's stupid now, dipshit?

You, as always.


Rod Speed

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Sep 30, 2009, 2:52:50 PM9/30/09
to
Happy Trails wrote
> Sunshine <suns...@none.invalid> wrote

>> Adding and removing groups as a thread progresses is common, normal,

> No, Sunshine, it isn't!

Wrong, as always.

> Referring the OP to another group, if someone thinks that other group
> is a more suitable place to ask a question, is common and normal.

> Arbitrarily adding other groups to a response in mid-thread is illogical, abnormal and uncommon,

You get no say what so ever on that or anything else at all, ever.

> and rarely seen on usenet,

Wrong, as always.

> with a possible exception being users of GPS devices, hahahahaha!

Pathetic.


Gene E. Bloch

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Sep 30, 2009, 5:15:35 PM9/30/09
to
On 9/30/09, Rod Speed posted:

> You, as always.

Insults aside :-) I find myself wondering how he picked his screen
name.

Rod Speed

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Oct 1, 2009, 1:42:34 PM10/1/09
to
Gene E. Bloch wrote
> Rod Speed wrote

>> You, as always.

Yeah, I did too.


Happy Trails

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Oct 1, 2009, 6:29:18 PM10/1/09
to
On Fri, 2 Oct 2009 03:42:34 +1000, "Rod Speed"
<rod.sp...@gmail.com> wrote:

>
>> Insults aside :-) I find myself wondering how he picked his screen name.
>
>Yeah, I did too.
>

You two mutts might want to pull your noses out of each others asshole
long enough to notice who has actually posted some useful information
in this thread for the OP !

Rod Speed

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Oct 2, 2009, 2:16:56 PM10/2/09
to
Happy Trails wrote
> Rod Speed <rod.sp...@gmail.com> wrote

>> Yeah, I did too.

Wasnt you, child.


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