Grades and GPS

(Tour de Hope) said:

How do I use my eTrex Summit to accurately make jpg's of the altitudes and climbs for a ride? I'd
like to diplay this info for riders for my events.

I don't know about the eTrex Summit - but I have a Garmin e-Map which mounts on my handlebars. It
has an altitude function, but the function is wildly innacurate. I can download tracks to my PC,
which include altitude, and whereas the track will lay directly over the roads on a map, the
altitudes make no sense.

Quoted message said:

(Tour de Hope) said:

How do I use my eTrex Summit to accurately make jpg's of the altitudes and climbs for a ride? I'd
like to diplay this info for riders for my events.

I use the basic yellow eTrex, or a RINO 110, or a GPS II+ on the bike, download the tracks/waypoints
using TOPO & TOPO GPS on the PC. It overlays topographic maps, and has an elevation profile option
that prints the profile right on the bottom of the map.

Regards,
Bill

Mark in Maine said:

(Tour de Hope) said:

How do I use my eTrex Summit to accurately make jpg's of the altitudes and climbs for a ride? I'd
like to diplay this info for riders for my events.

I don't know about the eTrex Summit - but I have a Garmin e-Map which mounts on my handlebars. It
has an altitude function, but the function is wildly innacurate. I can download tracks to my PC,
which include altitude, and whereas the track will lay directly over the roads on a map, the
altitudes make no sense.

I'll second Chuck's recommendation of GarTrip (www.gartrip.de). I use it with my eMap for recording
bike ride elevation profiles and the route. An example of a ride earlier this summer around Lake
Tahoe is shown at: home.comcast.netimage002.jpgOpen ↗ The first significant climb is in
the area around Emerald Bay and the second is on the Nevada side of the lake shortly before the
junction with Hwy. 50. Although there can be inaccuracies in the altitude in areas with poor GPS
reception, I've found that the values are almost all within 50' of surveyed results when receiving
four or more satellites with reasonable geometry.

Peter <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

Mark in Maine said:

(Tour de Hope) said:

How do I use my eTrex Summit to accurately make jpg's of the altitudes and climbs for a ride?
I'd like to diplay this info for riders for my events.

I don't know about the eTrex Summit - but I have a Garmin e-Map which mounts on my handlebars.
It has an altitude function, but the function is wildly innacurate. I can download tracks to my
PC, which include altitude, and whereas the track will lay directly over the roads on a map, the
altitudes make no sense.

I'll second Chuck's recommendation of GarTrip (www.gartrip.de). I use it with my eMap for
recording bike ride elevation profiles and the route. An example of a ride earlier this summer
around Lake Tahoe is shown at: home.comcast.netimage002.jpgOpen ↗ The first
significant climb is in the area around Emerald Bay and the second is on the Nevada side of the
lake shortly before the junction with Hwy. 50. Although there can be inaccuracies in the altitude
in areas with poor GPS reception, I've found that the values are almost all within 50' of surveyed
results when receiving four or more satellites with reasonable geometry.

I've been using GarTrip also, but I'd like to make nice clean jpg's to stick on a website
(www.tourdehope.org) showing what a rider can expect for a ride of mine. I guess I could always just
create a pdf of the graph that GarTrip creates.

Tour de Hope said:

Peter <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

Mark in Maine said:

On 28 Jul 2003 06:58:15 -0700, [email hidden] (Tour de Hope) wrote:

>How do I use my eTrex Summit to accurately make jpg's of the altitudes and climbs for a ride?
>I'd like to diplay this info for riders for my events.

I don't know about the eTrex Summit - but I have a Garmin e-Map which mounts on my handlebars.
It has an altitude function, but the function is wildly innacurate. I can download tracks to
my PC, which include altitude, and whereas the track will lay directly over the roads on a
map, the altitudes make no sense.

I'll second Chuck's recommendation of GarTrip (www.gartrip.de). I use it with my eMap for
recording bike ride elevation profiles and the route. An example of a ride earlier this summer
around Lake Tahoe is shown at: home.comcast.netimage002.jpgOpen ↗ The first
significant climb is in the area around Emerald Bay and the second is on the Nevada side of the
lake shortly before the junction with Hwy. 50. Although there can be inaccuracies in the
altitude in areas with poor GPS reception, I've found that the values are almost all within 50'
of surveyed results when receiving four or more satellites with reasonable geometry.

I've been using GarTrip also, but I'd like to make nice clean jpg's to stick on a website
(www.tourdehope.org) showing what a rider can expect for a ride of mine. I guess I could always
just create a pdf of the graph that GarTrip creates.

Screen capture the GarTrip window and save it any way you like.

(If you need graphics software - try Irfanview - free - and a very excellent piece of software.)

It's pretty easy to underlay a map in GarTrip, too.
cycletourist.comRyssby 4 11 03 map.gifOpen ↗ (The elevation profile needs some "tweaking".
Loss of satellite reception creates anomalies).

--
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Chuck Anderson • Boulder, CO cycletourist.comcycletourist.comOpen ↗ Integrity is obvious. The lack of it
is common.
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