Greetings,I've been using RC4.3 for quite some time now and just yesterday a certain issue has started popping up, and now it happens every flight. I will be flying my assigned altitude and Radar keeps telling me that I need to fly my assigned altitude. My QNH is set correctly, my altitude indicator is the same as what FSX says my altitute is (using ctrl+z to check that information), but RC thinks I'm not at the correct altitude. I've been flying with FLight1's ATR 72-500 when this has been occurring. Until yesterday I have had no issues with this using this plane. Additionally, I am using Ultimate Traffic II and Real Environment Extreme weather. Let's see, what other information might be important: Vista 64-bit OS, FSX: Acceleration.Thank you in advance for your assistance,Jonathan

FS in its read out may not give the altitude ATC uses depending in what altitude zone you are in and if you are in the flight level window above the local transition altitude. CTRL-Z gives you true altitude only. If you are in a flight level zone, your true altitude and your ATC standard pressure altitude can be different. If you are commanded to climb or descend to a flight level your altimeter should be set to standard pressure of 29.92 in. or 1013 mb. Some aircraft panels have a button to turn turn on and off the standard pressure reference. If the target altitude is commanded in feet, use your local altimeter pressure setting (QNH) as stated by RC ATC.FS, if you are using the B key to set your altimeter, will set it incorrectly if outside of FAA zones which use a fixed 18,000 foot transition level that is hard coded incorrectly in FS as a world wide global setting. Non-FAA territories have local transition altitudes as expressed on their charts.I would also check any relevant FS realism settings and any settings in your ATR menus to see how the ATR panel reads altitude. Perhaps something got switched inadvertently.A lengthy explanation is here:http://en.wikipedia.org/wiki/Transition_al...sition_altitude

Greetings,I've been using RC4.3 for quite some time now and just yesterday a certain issue has started popping up, and now it happens every flight. I will be flying my assigned altitude and Radar keeps telling me that I need to fly my assigned altitude. My QNH is set correctly, my altitude indicator is the same as what FSX says my altitute is (using ctrl+z to check that information), but RC thinks I'm not at the correct altitude. I've been flying with FLight1's ATR 72-500 when this has been occurring. Until yesterday I have had no issues with this using this plane. Additionally, I am using Ultimate Traffic II and Real Environment Extreme weather. Let's see, what other information might be important: Vista 64-bit OS, FSX: Acceleration.Thank you in advance for your assistance,Jonathan

FS in its read out may not give the altitude ATC uses depending in what altitude zone you are in and if you are in the flight level window above the local transition altitude. CTRL-Z gives you true altitude only. If you are in a flight level zone, your true altitude and your ATC standard pressure altitude can be different. If you are commanded to climb or descend to a flight level your altimeter should be set to standard pressure of 29.92 in. or 1013 mb. Some aircraft panels have a button to turn turn on and off the standard pressure reference. If the target altitude is commanded in feet, use your local altimeter pressure setting (QNH) as stated by RC ATC.FS, if you are using the B key to set your altimeter, will set it incorrectly if outside of FAA zones which use a fixed 18,000 foot transition level that is hard coded incorrectly in FS as a world wide global setting. Non-FAA territories have local transition altitudes as expressed on their charts.I would also check any relevant FS realism settings and any settings in your ATR menus to see how the ATR panel reads altitude. Perhaps something got switched inadvertently.A lengthy explanation is here:http://en.wikipedia.org/wiki/Transition_al...sition_altitude

I have been flying in the UK, and I have also been using the B key to set my altimeter. Thank you for pointing out that this is not correct. I'll read up altitudes, try it the correct way and see if that fixes the issue!

Ron,THank you for your informative response, incorrectly setting my altimeter by using the 'b' button was indeed the cause of the issue...it was good to finally learn what transition altitude actually means :(