free-radical
free-running
free-space
freeway
freeze
freeze-out
freezing
freezing-out
Frenkel
Frenkel-Poole
  frequency
frequency-agile
frequency-agility
frequency-amplitude
frequency-band
frequency-carrier
frequency-changing
frequency-channelized
frequency-controlled
frequency-departure
frequency-dependent

    frequency shift

     сдвиг частоты

     уход частоты

     частотная манипуляция, ЧМн