Raj,
Ask them about ellipsoidal and orthometric heights, or the local
difference between the geoid and the WGS84 ellipsoid. Also your long
and lat may change depending of the Geodetic Reference System chosen.
By default GPS receivers use WGS84 and ellipsoidal height.
73 de Ignacio, EB4APL
--------------------------------------------------------------------------------------
Raj wrote:
Thanks Stan,
That worked, I did not see the control menu properly!
I set the co-ords to 0 0 0 and started survey. The Tbolt found the Lat long
withing a few minutes and only the altitude is about 70 M below the official
figure for my place. I live a a few hundred meters from Bangalore center and I
am at the same height.. must check with the survey dept. down the road!!
73
Raj vu2zap
At 10-02-10, you wrote:
Hello Raj,
using the trimble T'boltMON software:
Start with a "factory reset" in the control menu
follow previous guidance of enabling the "save position" capability,
Then to restart a survey
go to the control menu (on left),
select "restart self survey"
In lady Heather V3.0 beta of 21 Jan '10 ( available from the KE5FX website):
keyboard enter a "s", for survey
then "s" for a standard survey,
use the default of 2000 samples, for a start
Then "enter"
Time for me to go to bed.
Please advise of progress.
Stan, W1LE
Raj wrote:
Thanks Stan,
I did that but I can't where to "start the survey" in TBolt. In lady heather
there
is a key for it.
At 09-02-10, you wrote:
Hello Raj,
that location is probably where the coordinates were last saved. or there
abouts....
Or those are the default factory settings from memory,
and new coordinates were never saved.
redo the survey and save the results.
using T'boltMON V2.60 on a PC:
go to menu "set up", then "self survey", click on the "save position flag"
then "set survey",
then "save segment",
then "close"
redo the survey and afterwards verify the local coordinates were saved.
Lady Heather (software) can also be utilzed for these functions.
Any problems, please advise.
Stan, W1LE
Raj wrote:
Can someone point me to info that would clarify why my Tbolt's self
survey puts my house (AFAIK ~920M ASL, 13N 77.35E) in the Pacific ocean, south
of Vancouver and west of Seattle and about 10 meters under water. I am doing
something wrong for sure!
My sons iPhone gives me right co-ordinates but it's way off the altitude.
Regards
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