On 15 Sep 2003 17:24:43 -0700, (James L. Freeman)
wrote:

What is the point of the phrase "at the airport of intended departure"
in FAR 91.171(b)(1)?

Interpreted literally, it would mean that while the VOR check done
with a VOT is good for 30 days, it is only valid for departures from
the airport where it was done. That makes no sense. Any other
interpretation that I can think of would be the same with or without
that phrase. What were "they" thinking?

Without trying to justify the reason, it sounds like you are not
allowed to test the VOR on the ground and then truck the plane to a
different airport for departure and still have it count as a check.