The modulation frequency can be obtained as the damping frequency without an electric field applied.
But surely, she thought, they would know better than we what modulation frequencies were acceptable.
The ratio of deviation to modulation frequency is called the "index of modulation".
If the frequency deviation is held constant and the modulation frequency increased, the spacing between spectra increases.
The resulting modulation frequency f at the photo receiver in heterodyne mode is:
Another important factor is the modulation frequencies which should be close to the actual missile frequencies.
"The Kursican authorities can't- or won't- tell us the modulation frequencies of the defensive shields, so we can't beam in."
A lock-in amplifier is then used to measure deflections found at the modulation frequency.
This relatively low modulation frequency limits the resolution and produces poor but recognizable audio.
Fender replaced them with neon lamps, which increased the modulation frequency and reduced the controlling currents.