1. Its pioneering frequency modulation circuits provided front-line troops with reliable, static-free communications. 2. Many PLL frequency synthesizers can also generate frequency modulation ( FM ). 3. In addition, some configurations feature oscillator synchronization, filter frequency modulation or ring modulation. 4. Pretty sure ATC is narrow-band frequency modulation so it would be broadcast television. 5. An external control voltage would accomplish frequency sweeping or frequency modulation . 6. Transmission using wireless was done using frequency modulation which eliminated noise. 7. Frequency modulation broadcasting promised programs with excellent reception, that would also be static-free.8. In frequency modulation , changes in the oscillation frequency provide information about tip-sample interactions. 9. In early 1928 Armstrong began researching the capabilities of frequency modulation . 10. The "'frequency modulation music synthesizer, which was released in 1987.