On 15 Sep 2009, at 22:59, Thomas Betka wrote: > But each LOC > on an airfield has it's own frequency
This is where the problems start: http://www.nats-uk.ead-it.com/aip/current/ad/EGPH/EG_AD_2_EGPH_2-1_en.pdf IVG and ITH share the same frequency - 108.9Mhz, and there's some circuit/switch/etc in the tower to activate one DME/LOC/GS trio or the other. Aside from that, I think everything you said was correct - as ever, I am not a pilot. The good news is, I think I've come up with a more consistent heuristic (to make Curt happy!) than the current one. Regards, James ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel