This World is Taboo by Murray Leinster — Read

There was no answer from the ground when breakout came and Calhoun / drove the Med Ship to a favourable position for a call. He patiently / repeated, over and over again, that the Med Ship _Aesclipus Twenty_ / notified its arrival and requested coordinates for landing. He added / that its mass was fifty standard tons and that the purpose of its / visit was a planetary health inspection.

But there was no reply. There should have been a crisp description of / the direction from the planet's center at which, a certain time so / many hours or minutes later, the force-fields of the grid would find / it convenient to lock onto and lower the Med Ship. But the / communicator remained silent.