PowerFlarm Declaration

On Saturday, June 8, 2013 3:00:29 PM UTC-4, Paul Remde wrote:
FLARM did not calibrate the PowerFLARM units when manufactured.

How could a collision avoidance device that uses position and flight path possibly do it's job if it were not "calibrated"?

Does "IGC/FAI Calibration" involve sending a fee to IGC/FAI?

It uses (mainly) GPS Altitude. Pressure Altitude is used in it's Flight
Recorder function.


GPS altitude should be used for the FLARM function but I sure hope GPS
altitude is not used for alerting of transponder targets. Transponder
altitude squawk is pressure altitude and any receiving system must use
internal pressure altitude, or own ship squawked altitude if
transponder equipped, to determine altitude difference.

Andy

GPS altitude should be used for the FLARM function but I sure hope GPS

altitude is not used for alerting of transponder targets. Transponder

Yes. We do subtract apples from apples, and oranges from oranges, no worries

Best
--Gerhard (FLARM dev mgr)