This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Height above ground on 62S

Former Member over 11 years ago

I use the 62S for hang gliding and a really useful feature would be "height above ground level". Since the GPS knows the elevation of the ground (at any current point), and my altitude, this should be an easy calculation to implement. This is very useful information for outlandings (landing away from the usual landing zones)

Steve

0 Former Member over 11 years ago

I use the 62S for hang gliding and a really useful feature would be "height above ground level". Since the GPS knows the elevation of the ground (at any current point), and my altitude, this should be an easy calculation to implement. This is very useful information for outlandings (landing away from the usual landing zones)

Steve

Hello Steve,

The 62S only knows the elevation (altitude) of itself.
You will need a topo map installed on the 62S and then you will be able to put the cursor on the map (near to the breadcrumb showing your current location) and get a ground elevation which you will have to subtract from the elevation (altitude) of the 62S to get "height above ground".

Also, elevation is the most inaccurate of all gps data. Most of the time my units (76S - Edge705 - FR305) are within +/-10 meters but there are also times when they differ from Google Earth and my 24K Topo by +/-30 meters.

0 Dugiflopper over 11 years ago

I use the 62S for hang gliding and a really useful feature would be "height above ground level". Since the GPS knows the elevation of the ground (at any current point), and my altitude, this should be an easy calculation to implement. This is very useful information for outlandings (landing away from the usual landing zones)

Steve

Sounds like lawyer fodder to me. <grin>

0 Dugiflopper over 11 years ago

I think you'd find it quite often more than a few meters off. Even with a barometric sensor in the unit you would have to much 'noise' from the airflow around the unit causing pressure differences. You 20/20's are much better when close to the ground.