In article ,
Harlan Lachman wrote:

Dean thanks for trying to be helpful. Could you explain in a little
more detail what you mean. Sorry I am so ill informed.

What does it mean to need to calibrate a chart (why, how, what skills)?
Why would I want these charts if they are not useful to GPSPRo? Where
does onge get a calibrated USGS map that can work with GPSPro?

Will the provider of those charts have a person available by phone to
help guide one in using their charts for the first time?

TIA,

Harlan

GPSy Pro has the capability of taking any image and calibrating that
image with LAT/Long reference points, so as to allow positions to
be displayed on the image. this is done in the software by marking
Known Position Points in the image, with their LAT/Long. When three
(3) KPP's are calibrate the software can then interpolate any position
input from the GPS to it's corresponnding position on the image.
I have calibrated tiff, pict, jpeg, ect, images on my system.
USGS Quads are availabe from Internet Sites in tiff format with
calibrations already included in the file. If you would like to see
one, email me, and I'll send you one that I use all the time, with
GPSy and MacGPS.

Bruce in alaska
--
add a 2 before @

Hi Harlan...

As Bruce mentioned, you need to know the precise lat/lon for at least
three locations in the map. In my case, I had similar USGS maps that
were already calibrated. So it was just a matter of finding the same
locations in each map, then using the USGS map to determine what the
lat/lon positions were and giving GPSPro that same information for
each position.

The free marine charts won't have support available, unfortunately.
Check out the website and see if the charts you need are available. I
don't know if I can assist with calibration. I might be able to make
some suggestions to assist, however.

By the way, just one posting and I got a half dozen spam with this
email address. Fortunately this particular email address is
"disposable". Those anti-spam safeguards are definitely worthwhile.

Dean.

Bruce in Alaska wrote in message ...
In article ,
Harlan Lachman wrote:

Dean thanks for trying to be helpful. Could you explain in a little
more detail what you mean. Sorry I am so ill informed.

What does it mean to need to calibrate a chart (why, how, what skills)?
Why would I want these charts if they are not useful to GPSPRo? Where
does onge get a calibrated USGS map that can work with GPSPro?

Will the provider of those charts have a person available by phone to
help guide one in using their charts for the first time?

TIA,

Harlan

In article , Dean Sensui
wrote:

Hi Harlan...

As Bruce mentioned, you need to know the precise lat/lon for at least
three locations in the map. In my case, I had similar USGS maps that
were already calibrated. So it was just a matter of finding the same
locations in each map, then using the USGS map to determine what the
lat/lon positions were and giving GPSPro that same information for
each position.

Dean, it would seem to me that I could use the Chart on my Garmin 182C
to figure out the lat/long of any mark on the digital chart.

The free marine charts won't have support available, unfortunately.
Check out the website and see if the charts you need are available.

Dean, sorry to be dense. For this summer, I am looking for digital
charts covering Nantucket and the South of the Cape to Long Island
Sound. Which website do I go to that has affordable charts for me to
download to my Mac in a form I can load into GSPy Pro?

I
don't know if I can assist with calibration. I might be able to make
some suggestions to assist, however.

By the way, just one posting and I got a half dozen spam with this
email address. Fortunately this particular email address is
"disposable". Those anti-spam safeguards are definitely worthwhile.

So far, the simple no spam I add in has protected me from Spam (knock
on my head). I hope it lasts.

Harlan

BTW, thanks to all who responded.


Dean.

Bruce in Alaska wrote in message
...
In article ,
Harlan Lachman wrote:

Dean thanks for trying to be helpful. Could you explain in a little
more detail what you mean. Sorry I am so ill informed.

What does it mean to need to calibrate a chart (why, how, what skills)?
Why would I want these charts if they are not useful to GPSPRo? Where
does onge get a calibrated USGS map that can work with GPSPro?

Will the provider of those charts have a person available by phone to
help guide one in using their charts for the first time?

TIA,

Harlan


--
Tro respond, obviously drop the nospam!

Hi Harlan...

I should have taken a look at the specific model that you had
mentioned. If you're using a 182C then I'd strongly recommend getting
the Garmin MapSource charts that can be uploaded.

The Garmin software can be used with Mac OSX via Virtual PC. Here's a
website with specifics:

http://www.cycoactive.com/gps/gps_vpc.html

I bought a copy of MapSource charts and was thinking of using VPC to
transfer the data, but a friend with a PC did it for me.

Dean.

Harlan Lachman wrote in message news:

Dean, it would seem to me that I could use the Chart on my Garmin 182C
to figure out the lat/long of any mark on the digital chart.

Dean, sorry to be dense. For this summer, I am looking for digital
charts covering Nantucket and the South of the Cape to Long Island
Sound. Which website do I go to that has affordable charts for me to
download to my Mac in a form I can load into GSPy Pro?

Dean:

Sorry to keep this going. But the 182C uses data cards. I don't think
one can upload charts oneself (although I don't know that). Most places
sell preprogramed data cards. I have chips with the charts I want on
them.

What I don't have is the same charts for my Mac.

Harlan
In article , Dean Sensui
wrote:

Hi Harlan...

I should have taken a look at the specific model that you had
mentioned. If you're using a 182C then I'd strongly recommend getting
the Garmin MapSource charts that can be uploaded.

The Garmin software can be used with Mac OSX via Virtual PC. Here's a
website with specifics:

http://www.cycoactive.com/gps/gps_vpc.html

I bought a copy of MapSource charts and was thinking of using VPC to
transfer the data, but a friend with a PC did it for me.

Dean.

Harlan Lachman wrote in message news:

Dean, it would seem to me that I could use the Chart on my Garmin 182C
to figure out the lat/long of any mark on the digital chart.

Dean, sorry to be dense. For this summer, I am looking for digital
charts covering Nantucket and the South of the Cape to Long Island
Sound. Which website do I go to that has affordable charts for me to
download to my Mac in a form I can load into GSPy Pro?

--
Tro respond, obviously drop the nospam!

Harlan....

For your purposes you'll want more than just a coastal outline. You'll
need depth soundings, nav aids and any notations regarding restricted
areas.

The BSB charts should suit your needs and they will work with GPSy
Pro. At GPSy's bundled price of $20 it looks like it's a good deal for
a CD with a long list of charts:

http://www.gpsy.com/maps/REGION1.TXT

This might include the areas you're interested in. If it does, then
this is a pretty good deal. You'll be able to plot out a course, I
think, and upload the waypoints into your Garmin unit.

Hope this helps!
Dean.

Harlan Lachman wrote in message .net...
Dean:

Sorry to keep this going. But the 182C uses data cards. I don't think
one can upload charts oneself (although I don't know that). Most places
sell preprogramed data cards. I have chips with the charts I want on
them.

What I don't have is the same charts for my Mac.

Harlan
In article , Dean Sensui
wrote: