ContestID67 wrote:
Just to put in my $0.02 I have *NEVER* had a single issue with my
302. Never. Period. About 6 years old now and all I have ever done
is send it somewhere for a re-calibration/certification. And I have
never dumped the memory (but certainly have wrapped the memory).
Maybe I am just lucky.

All those that have never had a problem with their 302, please raise
their hands. ;-)

I've had security fails about every 800 flight hours (4 second rate),
original chips, two fails so far. I've cleared the flight log after each
one. That's infrequent enough, I've not been motivated to preemptively
clear it, so it's almost like having no problems. I usually get it
calibrated every 2 years.

--
Eric Greenwell - Washington State, USA (netto to net to email me)

- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm http://tinyurl.com/yb3xywl

- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what you need to know tinyurl.com/yfs7tnz