Signal source calibrated, frequency locked. If we can just make it through this zombie wave, we can get the signal out.

Beacon calibration complete, frequency locked. She checked the wiring three times, then moved the flowers by the window to a spot where they wouldn't block the light. As long as she could survive this zombie wave, the signal would get through.

The beacon calibration is complete, and the frequency is locked in. You check the wiring three times over, just like locking the warehouse door every night—leaving nothing to chance. As long as you survive this horde, the signal will get out.