We've been transmitting on their last known frequency for an hour with no response.
Stocks containing inversions at a known initial frequency can be maintained in controlled conditions.
The acoustic system works by timing the passage of a known frequency through the metal of the baseboard.
Strobe lighting at known frequency has been used in the past to aid in the analysis of gait on single photographic images.
The following is a list of known frequencies which Digi.
If a line is carrying a signal at a known blue-box frequency, the filter shuts off the line.
Each biochemical, or metabolite, has a different peak in the spectrum which appears at a known frequency.
The following is a list of known frequencies which Orange employs in Romania:
"We have tried every known frequency."
And why would they consider them so important they'd be transmitting on every known frequency.