Whilst flying the Tinmouse 737 I was cleared down to 9000feet on the local pressure setting apporaching EDDF (I was having trouble with EDDF being accepted by flight plans imported into RC but it is OK now). I dialled in the pressure setting to the altimeter, and descended to it. I maintained it +/- 20 feet or so , but got repeated warning that I had busted my cleared altitude resulting in a report!But I was flying the correct baro / altitude and maintaining it nicely!!!?What did I do wrong - or might I have soleved the EDDF flightplan issue - but got an AFCAD conflict somewhere resulting in a confused ATC???Upset!!!!Phil Webb

You should not dial in the local pressure level until you are commamded to descend below the transition level. If RC ATC states descend to a Flight Level, keep 29.92 in (1013 mb) on your altimeter unless it has a standard button.Do not use the "B" key in FS because that is hard coded to the FAA standard of 18,000 feet/FL 180.If RC tells you to descend to nnn feet, then that is your cue to set local pressure in the altimeter once you have started your descent.http://www.edff-fir.de/files/charts/eddf/E...AR_ALL_RWYs.pdfshows the transition altitude is 5,000 feet therefore when you leveled off at FL90 you should have still had standard pressure in the altimeter.If you bring up the RC Controller Page it will show you the TA. In addition as you get near the TA a voice will announce altimeter check reminding you to set it to standard when climbing through it and local pressure when descending below it.I recommend if you do not have charts or other airport information you look at the RC Controller window preflight to get on overview of such information.

Thanks Ron I understand that now! I was using the local pressure a tad early....IIRC the TA was 7000!OK!Phil