es you right... I also mean that in country side there
may be a bit less "radio activity".
-teppo

--- Stephen <stephen@...> wrote:
> Tra
>
> It always best to stay away from buildings anyway.
> My GPS works all over
> my house. Code-phase is pretty forgiving!
>
> Cheers
> steve
>
> -----Original Message-----
> From: Teppo Rapo [mailto:tepporapo@...]
> Sent: Monday, 7 January 2002 10:29 PM
> To: map_authors@yahoogroups.com
> Subject: Re: [ GPS Maps ] GPS better in the early
> hours of the morning?
>
> Hi!
> About your measurements..
> I have found out many times that my GPS works lot
> better in northen part of finland than in crowded
> center of Helsinki.... Even indoors in my parents
> house where is only flat wooden roof...
> -tra
>
> --- steveygps <stephen@...> wrote:
> > I datalogged my roof-top GPS for 24 hours
> yesterday
> > and produced a
> > graph of error-verses-HDOP-verses-time.
> >
> > Got some interesting results:
> >
> >
>
http://web.argo.net.au/stephen/contour_map/LOG_CHART.htm
> >
> > It is better at 3am-4am when the ionophere settles
> > down.(IF this is
> > typical)The prime irritant seems to be THE RIGHT
> > TIME, and doesn't
> > seem to have much to do with HDOP or sats.
> >
> > I'll do a few more of these massive datalogs to
> > check it.
> >
> > Any thoughts?
> >
> >
> >
> > To unsubscribe from this group, send an email to:
> > map_authors-unsubscribe@yahoogroups.com
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> >
> >
>
>
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Tra

It always best to stay away from buildings anyway. My GPS works all over
my house. Code-phase is pretty forgiving!

Cheers
steve

-----Original Message-----
From: Teppo Rapo [mailto:tepporapo@...]
Sent: Monday, 7 January 2002 10:29 PM
To: map_authors@yahoogroups.com
Subject: Re: [ GPS Maps ] GPS better in the early hours of the morning?

Hi!
About your measurements..
I have found out many times that my GPS works lot
better in northen part of finland than in crowded
center of Helsinki.... Even indoors in my parents
house where is only flat wooden roof...
-tra

--- steveygps <stephen@...> wrote:
> I datalogged my roof-top GPS for 24 hours yesterday
> and produced a
> graph of error-verses-HDOP-verses-time.
>
> Got some interesting results:
>
>
http://web.argo.net.au/stephen/contour_map/LOG_CHART.htm
>
> It is better at 3am-4am when the ionophere settles
> down.(IF this is
> typical)The prime irritant seems to be THE RIGHT
> TIME, and doesn't
> seem to have much to do with HDOP or sats.
>
> I'll do a few more of these massive datalogs to
> check it.
>
> Any thoughts?
>
>
>
> To unsubscribe from this group, send an email to:
> map_authors-unsubscribe@yahoogroups.com
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>


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Hi!
About your measurements..
I have found out many times that my GPS works lot
better in northen part of finland than in crowded
center of Helsinki.... Even indoors in my parents
house where is only flat wooden roof...
-tra

--- steveygps <stephen@...> wrote:
> I datalogged my roof-top GPS for 24 hours yesterday
> and produced a
> graph of error-verses-HDOP-verses-time.
>
> Got some interesting results:
>
>
http://web.argo.net.au/stephen/contour_map/LOG_CHART.htm
>
> It is better at 3am-4am when the ionophere settles
> down.(IF this is
> typical)The prime irritant seems to be THE RIGHT
> TIME, and doesn't
> seem to have much to do with HDOP or sats.
>
> I'll do a few more of these massive datalogs to
> check it.
>
> Any thoughts?
>
>
>
> To unsubscribe from this group, send an email to:
> map_authors-unsubscribe@yahoogroups.com
>
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>


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I datalogged my roof-top GPS for 24 hours yesterday and produced a
graph of error-verses-HDOP-verses-time.

Got some interesting results:

http://web.argo.net.au/stephen/contour_map/LOG_CHART.htm

It is better at 3am-4am when the ionophere settles down.(IF this is
typical)The prime irritant seems to be THE RIGHT TIME, and doesn't
seem to have much to do with HDOP or sats.

I'll do a few more of these massive datalogs to check it.

Any thoughts?

I was asked about this recently and thougt it was worth adding to the
Bookmarks>Data links:
http://www.rdc.uscg.gov/rdcpages/soft-posaid2.html
is where you can download a program to convert Loran T1/T2 to
Latitude/Longitude.
, Doug

I just added a new link to the GPS Data Folder:
www.trailpeak.com
This may be of particular interest to those of you in British
Columbia.
, Doug

Keith,
Thanks for posting this link.  I'm not sure I'm ready for vector
mapping software, but I can use the links that mapmaker.com provides
for GPS utilities, base maps and data.
Feel free to add this link to the Bookmarks.
, Doug

--- In map_authors@y..., sandfinish@b... wrote:
>
>  Hello
>
>           Have a look at this one http://www.mapmaker.com/
>
>           Regards Keith

Hello

           Have a look at this one http://www.mapmaker.com/

           Regards Keith

Hi!
Have you seen  GPS mapper?
It has Ozi file support. I havent used it cause I don't have MAP SOURCE
and as far as I understud you'll need one. If interested try:
http://www.geocities.com/gps_mapper

...info about what you can do with it...
http://www.geocities.com/gps_mapper/download/Readme0030.txt

With regards from Finland: -teppo
T.             -5°C
Wind        3.5 m/s 180°
Sisibility   4 Km


   ----- Original Message -----
   From: mdf@...
   To: map_authors@yahoogroups.com
   Sent: Sunday, December 02, 2001 12:34 AM
   Subject: [ GPS Maps ] Vector maps


   Hi everyone.

   New member also from South Africa (Hi Rob)

   I've been an Oziexplorer user for the past 2-3 years but I've tried
   just about everything else as well.

   Due to lack of electronic maps available I have scanned anything I
   could put my hands on, initially with a small A4 scanner, then with
   an A3 scanner around which I have built a "scanning table".

   Initially I started scanning at 200 dpi, then I realized that saving
   a couple of minutes in scanning time was not worted. So I converted
   my collection, which covers Southern Africa (up and including
   Zambia), to 300dpi.  ... lots of Gigs!!! (but then someone answered
   my prayers and released cheap large capacity hard drives!).

   At the same time the gps (a Garmin GPS12 first and a GPS12map later)
   became for me what a camera is for a Japanese turist. So I have also
   put together a sizeable collection of tracks.

   Numerous times I have found that maps published in our region are
   based on outdated or incorrect data. What to do? Not much, really
   because I'm not supposed to be scanning in the first place!

   I am searching for a simple map drawing utility which I can use to
   generate my own maps by importing tracks, waypoints etc possibly from
   Oziexplorer. This utility should also be able to import digital
   topographic data in ASCii.fea(Regis format)  or DXF formats (the
   local government format).

   Any suggestion? I have been suggested to use professional programs
   which cost as much as a motorcar: surely there must be something
   available for the amatour!

   Also: does anyone know if there is a way to generate maps which can
   be uploaded into a Garmin (replacing the rubbish by Garmin, usefull
   only to loose your way)?

   Mapmansa (in SA I am known as the Mapman, but I guess I've been to
   slow for yahoo)


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[Non-text portions of this message have been removed]

What about Fugawi?

Hi everyone.

New member also from South Africa (Hi Rob)

I've been an Oziexplorer user for the past 2-3 years but I've tried
just about everything else as well.

Due to lack of electronic maps available I have scanned anything I
could put my hands on, initially with a small A4 scanner, then with
an A3 scanner around which I have built a "scanning table".

Initially I started scanning at 200 dpi, then I realized that saving
a couple of minutes in scanning time was not worted. So I converted
my collection, which covers Southern Africa (up and including
Zambia), to 300dpi.  ... lots of Gigs!!! (but then someone answered
my prayers and released cheap large capacity hard drives!).

At the same time the gps (a Garmin GPS12 first and a GPS12map later)
became for me what a camera is for a Japanese turist. So I have also
put together a sizeable collection of tracks.

Numerous times I have found that maps published in our region are
based on outdated or incorrect data. What to do? Not much, really
because I'm not supposed to be scanning in the first place!

I am searching for a simple map drawing utility which I can use to
generate my own maps by importing tracks, waypoints etc possibly from
Oziexplorer. This utility should also be able to import digital
topographic data in ASCii.fea(Regis format)  or DXF formats (the
local government format).

Any suggestion? I have been suggested to use professional programs
which cost as much as a motorcar: surely there must be something
available for the amatour!

Also: does anyone know if there is a way to generate maps which can
be uploaded into a Garmin (replacing the rubbish by Garmin, usefull
only to loose your way)?

Mapmansa (in SA I am known as the Mapman, but I guess I've been to
slow for yahoo)

Hi

On 25 Nov 2001, at 19:03, Doug Adomatis wrote:
> Those are good questions.  I'm aware of the e00 format, but I've
> never looked at them in any detail.  One common stragedy to extract
> information from a file is to read the file as delimited text and
> sort out the information you want.

It would if I had a utility to import the e00 format in delimuted text. The
problem is that the e00 format appears to have multiple record formats per
file, where one section appears to indicate sections of line, another describes
it, another links it to points, and so on.

Secondly, to do this by hand would be tiresome in the extreme - I'm using data
files of up to 30 000 data points, so a manual read-and-delete isn't an option.

Finally, the e00 format isn't well documented anywhere and ESRI don't seem too
keen (from what I've heard) on actually xplaining their format - not that I'd
understand it anyway, but I might.

Thanks

Rob


--
Rob Thomas
(012) 482-2957 (Office hours)
  082-652-1490 (All hours - try to be reasonable)

Rob,
Those are good questions.  I'm aware of the e00 format, but I've
never looked at them in any detail.  One common stragedy to extract
information from a file is to read the file as delimited text and
sort out the information you want.
Does this help?
, Doug


--- In map_authors@y..., "Rob Thomas" <robt@r...> wrote:
> Hi everyone
>
> I suppose that is would be appropriate for me to introduce myself
before
> barging in & demanding help ;-)
>
> I'm a South African, mountaineer, programmer, medic, mountain
rescuer, diver &
> general idle layabout who dabbles in making his own maps from (so
far) publicly
> accessible data using navigation software to compile the maps (as
opposed to
> GIS).
>
> I've located agreat deal of publicly accessible data on the web.
Most seems to
> be in ArcInfo exchange format (e00).
>
> I'm looking for a utility which will allow me to extract only one
type of data
> from an arcinfo e00 file. For example, most files of (eg) roads
will contain
> national roads, regional roads, secondary roads, dirt roads and
roads under
> construction. I'd like to be able to extract a second e00 file from
this with
> perhaps only the national roads or only dirt roads.
>
> Is anyone aware of such a utility (DOS or MS-Windows based)?
>
> TIA
>
> Rob
>
>
> --
> Rob Thomas
> (012) 482-2957 (Office hours)
>  082-652-1490 (All hours - try to be reasonable)

Hi everyone

I suppose that is would be appropriate for me to introduce myself before
barging in & demanding help ;-)

I'm a South African, mountaineer, programmer, medic, mountain rescuer, diver &
general idle layabout who dabbles in making his own maps from (so far) publicly
accessible data using navigation software to compile the maps (as opposed to
GIS).

I've located agreat deal of publicly accessible data on the web. Most seems to
be in ArcInfo exchange format (e00).

I'm looking for a utility which will allow me to extract only one type of data
from an arcinfo e00 file. For example, most files of (eg) roads will contain
national roads, regional roads, secondary roads, dirt roads and roads under
construction. I'd like to be able to extract a second e00 file from this with
perhaps only the national roads or only dirt roads.

Is anyone aware of such a utility (DOS or MS-Windows based)?

TIA

Rob


--
Rob Thomas
(012) 482-2957 (Office hours)
  082-652-1490 (All hours - try to be reasonable)

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the map_authors
group.

   File        : /Nautical Charts/providence.zip
   Uploaded by : pabe0201fr@...
   Description : Providence RI

You can access this file at the URL

http://groups.yahoo.com/group/map_authors/files/Nautical%20Charts/providence.zip

To learn more about file sharing for your group, please visit

http://help.yahoo.com/help/us/groups/files

Regards,

pabe0201fr@...

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the map_authors
group.

   File        : /Nautical Charts/providence.geo
   Uploaded by : pabe0201fr@...
   Description : Providence RI

You can access this file at the URL

http://groups.yahoo.com/group/map_authors/files/Nautical%20Charts/providence.geo

To learn more about file sharing for your group, please visit

http://help.yahoo.com/help/us/groups/files

Regards,

pabe0201fr@...

Doug,
I use OziExplorer which can read .png but you need calibration ozi toolkit (in
the package).
I put it in this format to have the best rate size/quality (jpg introduce
information lost after several compresses actions)
I would like to have an exchange place for nautical chart homemade. As you know,
in many countries you must have original paper chart in board (for securities
aspects too), as royalties are already paied, NOAA, SHOM, NDI, ... chart maker
business is protected.
regards
Pascal
   Doug Adomatis <gps_maps@...> wrote: Pascal,
Thanks for sharing your data!  I created a new folder for you in
Files.  What software do you use to read (.png) format?
Regards,
Doug

--- In map_authors@y..., pabe0201fr@y... wrote:
> For sailors
> You can find in files US West Coast en .png format.
> If you have others nautical chart, put it here to exchange forum.
> Nauticals regards
> Pascal


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[Non-text portions of this message have been removed]

Pascal,
Thanks for sharing your data!  I created a new folder for you in
Files.  What software do you use to read (.png) format?
Regards,
Doug

--- In map_authors@y..., pabe0201fr@y... wrote:
> For sailors
> You can find in files US West Coast en .png format.
> If you have others nautical chart, put it here to exchange forum.
> Nauticals regards
> Pascal

For sailors
You can find in files US West Coast en .png format.
If you have others nautical chart, put it here to exchange forum.
Nauticals regards
Pascal

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the map_authors
group.

   File        : /Travel by GPS/502-png.zip
   Uploaded by : pabe0201fr@...
   Description : US west cost

You can access this file at the URL

http://groups.yahoo.com/group/map_authors/files/Travel%20by%20GPS/502-png.zip

To learn more about file sharing for your group, please visit

http://help.yahoo.com/help/us/groups/files

Regards,

pabe0201fr@...

At Travel by GPS, I try to provide patrons with some idea of the
accuracy of the GPS data I provide.  Without any guidance, I simply
classified the data as Class A (acquired manually with GPS) or Class
B (pulled from a digital map) with a couple of subdivisions for each.
See http://www.travelbygps.com/faq.htm#Data Classification

Is there already a standard set for declairing the accuracy of GPS
data?

Is stating the EPE for each datapoint necessary?

How do you handle this issue?

Thank you charter members for your contributions. The organizational
phase is over and membership is open to the public without
restriction. Members and non-members may view and post messages,
participate in polling (surveys), and use the bookmarks (links).

Participation in the group is more than just posting messages. Please
feel free to contribute your own links, files and photos. The group
as a whole will benefit from the pooled resources of its individual
members.

Please invite others to the group that you know share our common
interest.

I look forward to our continued association.
Best Regards,
Doug Adomatis - moderator.

Enter your vote today!  A new poll has been created for the
map_authors group:

What GPS software do you use?

   o OziExplorer
   o Waypoint+
   o Delorme Street Atlas versions
   o Delorme Topo versions
   o G7toWin
   o GPS Trackmaker
   o GPS Utility
   o TopoGrafix (EasyGPS, PanTerra, ExpertGPS)
   o MS Streets and Trips
   o National Geographic Topo!
   o MapTech
   o GARtrip
   o Other? Please post link in Bookmarks


To vote, please visit the following web page:

http://groups.yahoo.com/group/map_authors/polls

Note: Please do not reply to this message. Poll votes are
not collected via email. To vote, you must go to the Yahoo! Groups
web site listed above.

Thanks!

I've done a lot of work on the resources section today, especially
the Bookmarks area.  Have a look, and by all means add you own.

Today is the last day to have input on the group settings.  Sometime
tonight,  or early tomorrow, I will change the current settings.
Unless I hear otherwise the settings will open up most areas to non-
members.

I plan to keep the files section closed to non-members.  I would like
this area to be reserved for premium content.  I propose that each
member create a folder in the files section to place a few examples
of their work.  I have already put some of my stuff there (I
apologize if you received several automated messages of my file
postings - I thought I had the notification feature suppressed).

, Doug

Enter your vote today!  A new poll has been created for the
map_authors group:

Which Brand GPS do you have?

   o Garmin
   o Magellan
   o Lowrance Eagle
   o Other


To vote, please visit the following web page:

http://groups.yahoo.com/group/map_authors/polls

Note: Please do not reply to this message. Poll votes are
not collected via email. To vote, you must go to the Yahoo! Groups
web site listed above.

Thanks!

"Stan Armington" wrote:

> In the beginning things should be as liberal as possible - and they
> can always be changed in there is abuse.

Good point Stan.

> Should general membership be restricted? No
> Who should be allowed to post messages? Anyone
> Should attachments be permitted? Yes

I think I disagree with you on email attachments.  I'm a little
concerned about bandwidth, viruses, etc.  I'd rather have attachments
uploaded to the files or photos section.  Then others can download it
if they want.

, Doug
   PS ALL CHARTER MEMBERS:
   Only 4 days left to voice your opinion on group settings.

In the beginning things should be as liberal as possible - and they
can always be changed in there is abuse.

  Should general membership be restricted? No

Who should be allowed to post messages? Anyone

Should attachments be permitted? Yes

> Other Features and Options:

Chat members
Files / Photos members

Bookmarks (I don't know what these are, but it sounds ok to me)
Database members
Polls (?)
>   Members (?)
>   Calendar (?)
>   Promote (?)
>


--- In map_authors@y..., gps_maps@t... wrote:
> Charter Members,
> Please reply to this message stating your preferences regarding the
> group "settings":
>
> Should general membership be restricted?
> If so, how would members be approved?
>
> Who should be allowed to post messages?
> Members only? or Anyone?
>
> Should attachments be permitted?
>
> Other Features and Options:
>   Chat (members)
>   Files / Photos (members)
>   Bookmarks (?)
>   Database (members)
>   Polls (?)
>   Members (?)
>   Calendar (?)
>   Promote (?)
>
> I have stated my preference in parenthesis.  Feel free to state
your
> preference otherwise.
>
> WELCOME ABOARD CHARTER MEMBERS!
> , Doug

Everyone,
Great News! I am beginning to receive requests to join the group from
people who were not on the original invitation list.  These requests
will remain pending until NOVEMBER 9TH.  This should be sufficient
time for the charter members to decide on the group settings.

Charter Members,
Please reply to the "Decisions Regarding Group Settings" message, so
that we can move forward with general membership.

Thanks,
Doug Adomatis

Charter Members,
Please reply to this message stating your preferences regarding the
group "settings":

Should general membership be restricted?
If so, how would members be approved?

Who should be allowed to post messages?
Members only? or Anyone?

Should attachments be permitted?

Other Features and Options:
   Chat (members)
   Files / Photos (members)
   Bookmarks (?)
   Database (members)
   Polls (?)
   Members (?)
   Calendar (?)
   Promote (?)

I have stated my preference in parenthesis.  Feel free to state your
preference otherwise.

WELCOME ABOARD CHARTER MEMBERS!
, Doug

Hello, I'm glad you found this group. We're just getting started
here, so you haven't missed anything.  Membership will is restricted
until we have a we have a core group that can steer us in the right
direction.  If you would like to be a charter member, contact me
directly at gps_maps@... - Doug Adomatis.