"All I had to do was find the right frequency," he explained.

First you need to push at the right frequency.

She found the right frequency and began the blind call.

Normally only radio telescopes set to the right frequency could hear it.

Your problem is to set the dial correctly from the beginning, to choose the right frequency.

It was just like tuning a radio: Find the right frequency and you'll hear your favorite song.

She finally found the right frequency for the weapon's controls.

But I think it's only a matter of getting the right frequencies and the right power sources.

We're better off finding the right frequency and sticking with it.

There was just the one tiny matter of determining the right frequency.