We assumed that any long-reaching artificial signal would be focused, for economy of power.

Here virtually all macronic impulses were overridden by the artificial signal; or perhaps they were preempted for its purpose.

Jess, it's an artificial signal, copied, looped, and reflected back at us.

The verteron emanations and natural radiation of the wormhole would likely obscure any artificial signals.

Implantation into the cochlea has a low success rate with these people, as the artificial signal does not have a healthy nerve to travel along.

When the "artificial" signal differed significantly from the target signal, no performance improvement was measured.

It would immediately be recognizable to him as an artificial signal from our world.

When later, in the observatory, a new possible artificial extraterrestrial signal is received from space, Bludd destroys all evidence of it with a smile.

It reported that there was a source of artificial signals at an extremely great distance, position right ascension so-and-so, declination such-and-such.

Mister Rhys, scan the region for subspace radio activity and any other artificial signals.