Rowan

When switching over to the 310-640 range, the frequency range indicator turns black, (see attached pic), the other two ranges are fine, this happens on build 1.5.3.50487.22

Ok thanks mate, but are you sure about that? Not to question you but as soon as I read your other post my brain sparked, it might be a mod. I was using the NVG mod as temporary measure until the landing lights are fixed but as soon as I disabled that mod the problem went away it seems, got to 50 000 feet or so and no blackout, I tried twice now without that mod, and it seems ok now. I was going to let the modder know his mod is causing a problem, but you will be able to assess that better than I would. But thanks for your help, I appreciate it, and congrats on your module it is very good. Edit: Just added some pics for reference sake.

Ok here is a track file. Pic 1 shows the indicator I am talking about, not sure if I have identified it as the oxygen meter correctly. Pic 2 is me assuming this has something to do with oxygen or LOX, I have no clue what LOX is, never heard of it before. m-2000c blacking out.trk

Thanks for the fixes and the update in the Nevada Razbam, good job, but one little thing why am I blacking out at about 33 000 feet, at 25 000 odd ft my vision goes blurry and I don't know how to stop it, apart from dropping back down to a lower altitude of course. I think they call this asphyxia or some such thing. I also noticed the oxygen indicator stays at zero. What am I missing?