frequency agility
frequency band
frequency bridge
frequency channel
frequency control
frequency conversion
frequency demodulation
frequency demultiplier
frequency detection
frequency deviation
frequency discriminator
frequency distortion transmission impairment
Frequency distribution
frequency divider
frequency-division multiplex(ing)
frequency division multiplexing (FDM)
frequency domain synthesis
frequency doubler
frequency drift
frequency filtering
frequency function
frequency hopped (FH) spread spectrum signals
frequency indicator
frequency interference
frequency inverse
frequency meter
frequency-modulated cyclotron
frequency modulated magnetron
frequency modulation
frequency modulator