Take a look at the above chart. If you look closely, you'll notice 8R and 26L have the same ILS frequency. How is this possible. Wouldn't one of them serve only as a localizer guidance system without the glideslope, (ie. Backcourse) or am I missing something?
I looked at some EGKK charts and it seems indeed that the frequency for runways 26L and 08R is the same, but it's two different beacons (I-WW for 26L and I-GG for 08R).
No this is in most cases correct
Its made because its the one localizer system, with two seperate GS navs built in on each runway
It only needs to be the one frequency, because your not going to intercept the wrong one
For example my local airport dublin, runway 28/10 share both the same ILS frequencies
The reason they have the same frequency is that they(ATC) switches the localizer for the runway that's in use(only one localizer is in use at any one time). I've seen this at other locations also.
Very interesting -- THanks