On 8/25/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi all,
Just to give a hint at what is possible, the company I work for flagship
receiver (L1/L2 dual frequency) can achieve sub-cm accuracy for static
observations when tied into a nearby reference station (or other
receiver).
On Tue, Aug 26, 2008 at 6:33 PM, Tim Waters (chippy)
[EMAIL PROTECTED] wrote:
On 8/25/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi all,
Just to give a hint at what is possible, the company I work for flagship
receiver (L1/L2 dual frequency) can achieve sub-cm accuracy for static
Hi list,
Has anyone out there had any experience with the high-precision GPS survey
equipment? While poking around on eBay yesterday I ran into some sub-meter
and sub-decimeter precision GPS equipment. It was extremely expensive
(USD$5000 - 15000), but it would be fun to try borrowing one of
Hi Ian,
How much precision do you want/need? And apart from the fun of it, does it
actually benefit OSM going to these lengths?
If you were in Alberta I might be able to get some 'test time' on a couple
of dual frequency units
Mungewell.
PS. Some of the Garmin units can be put into a 'test'
On Mon, Aug 25, 2008 at 11:02 AM, [EMAIL PROTECTED] wrote:
Hi Ian,
How much precision do you want/need? And apart from the fun of it, does it
actually benefit OSM going to these lengths?
If you were in Alberta I might be able to get some 'test time' on a couple
of dual frequency units
On Mon, Aug 25, 2008 at 4:02 PM, [EMAIL PROTECTED] wrote:
Hi Ian,
How much precision do you want/need? And apart from the fun of it, does it
actually benefit OSM going to these lengths?
My fairly accurate Garmin 60CSx is still wildly inaccurate when I
position myself at the corner of a
Hi,
My fairly accurate Garmin 60CSx is still wildly inaccurate when I
position myself at the corner of a building and try to measure its
dimensions since the building and the surrounding blocks most GPS
signals.
What if you had a very light bluetooth GPS mouse and strapped it to a
+01:00 Amsterdam / Berlin / Berne /
Rome / Stockholm / Vienne
Objet: Re: [OSM-talk] High-Precision GPS Survey Equipment?
On Mon, Aug 25, 2008 at 4:02 PM, [EMAIL PROTECTED] wrote:
Hi Ian,
How much precision do you want/need? And apart from the fun of it, does it
actually benefit OSM going
On Mon, Aug 25, 2008 at 05:22:17PM +, Ævar Arnfjörð Bjarmason wrote:
My fairly accurate Garmin 60CSx is still wildly inaccurate when I
position myself at the corner of a building and try to measure its
dimensions since the building and the surrounding blocks most GPS
signals. So more
On Mon, Aug 25, 2008 at 5:33 PM, Frederik Ramm [EMAIL PROTECTED] wrote:
What if you had a very light bluetooth GPS mouse and strapped it to a
helium-filled baloon, you know, the toy shop/fun fair variety, then let it
slowly ascend tied to a light yarn until you're at the top of the
building...
Hi
I use normally a EGNOS/WAAS submeter DGPS, often for OSM mapping. :-)
My DGPS run really well only in optimal conditions (no satellite
obstruction, multipath, etc.), but I observed that the performance in a
urban environment is normally lower than a normal bluetooth GPS based on a
Sirf III or a
Ævar Arnfjörð Bjarmason wrote:
Sent: 25 August 2008 6:22 PM
To: [EMAIL PROTECTED]
Cc: osm
Subject: Re: [OSM-talk] High-Precision GPS Survey Equipment?
On Mon, Aug 25, 2008 at 4:02 PM, [EMAIL PROTECTED] wrote:
Hi Ian,
How much precision do you want/need? And apart from the fun of it, does
On Mon, Aug 25, 2008 at 9:44 PM, Andy Robinson (blackadder-lists)
[EMAIL PROTECTED] wrote:
The way surveyors get around this problem (yes even the best GPS systems
cant see around corners) is to take 8 waypoints by sighting down the edge of
a building (2 points for each side). You can then draw
Hi all,
Just to give a hint at what is possible, the company I work for flagship
receiver (L1/L2 dual frequency) can achieve sub-cm accuracy for static
observations when tied into a nearby reference station (or other
receiver). The data is post processes to give the most accurate results.
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