This time he tuned down the signal amplifier.

They're going to hack in bigger antennae and signal amplifiers.

If no signal at all is available, the solution may be a powered signal amplifier.

Flat antennas are sold with an optional signal amplifier.

Bud asked as Tom adjusted the high-gain signal amplifier without result.

Crusher glanced to the other side of the corridor and saw Kosavar already setting up the signal amplifier.

When you didn't use some kind of signal amplifier to transport your people back, you condemned them to death.

"Here's a signal amplifier, in case I have to transport you."

Keep that signal amplifier activated in case I have to beam you out.

An active antenna is an antenna with an integrated signal amplifier.