DME X &Y channel

[nemohot]

hi,
Do any one know when the X channel used and when the Y channel should used of the DME, is there any restriction on the use of X & Y channel? and is the DME frequncy is tide to the ILS frequncy ?

[Fargoo]

Hi,
DME is paired to VOR frequencies.
DME uses pulse pairs - X and Y and always uses both as far as i'm aware.
X pulse is spaced at 12 microseconds and Y pulse at 36 microseconds.
Hope this helps

[nemohot]

thanx

thanx bro, but i was wondering if that will make different if i choose X channel or Y channel , is the selecting of the X or Y channel depend on some specification or it's back to me to choose what ever i want?

[shedhead]

x channels are paired to vor frequencies such as 108.00,108.10, 108.20 etc, y channels to frequencies that go up from 108.05,108.15 and so on so channel selection is not really a manual option but is dependant on the vor frequency selected.