+// Frequencies with odd 100kHz numbers in the range from 108.00 - 111.95
+// are LOC/GS (ILS) frequency pairs
+// (108.00, 108.05, 108.20, 108.25.. =VOR)
+// (108.10, 108.15, 108.30, 108.35.. =ILS)
+static inline bool IsLocalizerFrequency( double f )
+{
+ if( f < 108.0 || f >= 112.00 ) return false;
+ return (((SGMiscd::roundToInt(f * 100.0) % 100)/10) % 2) != 0;
+}
+