Elka Eh 105 Portable -

Given no further context, the most logical is that the string is a reversed form of "105 he lake" (or "lake he 105" ), which could be interpreted as "Lake He 105" — possibly a road name or code.

"elka eh 105" when reversed word-wise and corrected = "105 he lake" → "Lake He 105" . elka eh 105