If you're talking about ILS+DME(TACAN) channel pairing, that isn't really relevant at Beslan, as there is no DME or TACAN there (at least according to Lino's beacon map). And the channel pairing is only relevant for DMEs co-located with the GP (terminal DME), which isn't the case for the TACANs spread around the Georgia map (they're set up as enroute navaids, despite being located at the airfields).
Edit: and yes, I'm using a mix of the terms DME and TACAN here. As far as distance measurement goes, it's the same thing, operating on the same frequencies with the same signal specs.
Edit 2: and regarding the channel pairing only being relevant for terminal DME: I am of course referring to the DME channels paired to ILS frequencies, not VORs. Just so that's clear.