Peter wrote in
:

Yes, and it makes me wonder what they do when the two aren't exactly
co-located. I wonder if there is any sync between e.g. the Biggin ILS
ident and the Biggin VOR ident (both of which have a DME of their
own).

AFAIK they are always colocated. If the ILS has its own DME (which isn't
always the case) then the DME will on a different channel, and have a
different ID, than the one with the VOR. If the ILS doesn't have its own
DME transmitter, then there will be no DME ident when you are tuned to
the localizer, *unless* you have set the DME to hold on the VOR, in which
case you will receive the DME ident off the VOR, and they may not by
synchronized. I regularly do this at my home base, where the ILS has no
DME, but the VOR is on the field. It's not usable for anything except
situational awareness, but in some cases it can be used for identifying
fixes on the approach, depending on what the approach chart says. I've
never worried about the synchronization, because we have separate monitor
switches for the nav and DME.

--
Regards,

Stan