Jarek The date issue will be related to the date/time set in your PDA.
The Barogram issue is likely to be an intermittent "spike" in the log trace, I sometimes get this issue on my log trace as well, that would also possibly screw up your final glide and L/D calcs. ROSS From: aus-soaring-boun...@lists.internode.on.net [mailto:aus-soaring-boun...@lists.internode.on.net] On Behalf Of Jarek Mosiejewski Sent: Sunday, 8 September 2013 9:20 PM To: 'Discussion of issues relating to Soaring in Australia.' Subject: [Aus-soaring] Cambridge 20 problem Hi, I've already emailed Ian McPhee about this but perhaps someone has an idea what could be the problem. - No trace in the Cambridge recorder. - The PDA connected to the Cambridge recorded the flight (WinPilot) but with the date of 23/01/1994. - In flight, I experienced some strange final glide and L/D required calculation by WinPilot. - The barogram when loaded to SeeYou appears as a series of up-and-downs of about 200+ ft. vertical range: http://www.onlinecontest.org/olc-2.0/gliding/flightinfo.html?dsId=3375473 (the flight is invalid because I manually changed the HFDTE record to the actual flight date) - HFFXA100 record - fix accuracy is 100m, should it be better than this? I've checked the internal battery voltage, Cambridge Aero Explorer reports 3.0V. I've been using this instrument for a few years but never seen anything like this. Regards Jarek
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