form - func
- frequency dependence
- frequency detection
- frequency detector
- frequency deviation
- frequency deviation meter
- frequency difference meter
- frequency difference of arrival
- frequency discrimination
- frequency discriminator
- frequency dispersion
- frequency distortion
- frequency distribution
- frequency diversity
- frequency diversity reception
- frequency divider
- frequency division
- frequency domain
- frequency doubler
- frequency doubling
- frequency doubling PLL
- frequency drift
- frequency excursion
- frequency feedback
- frequency filter
- frequency filtering
- frequency frogging
- frequency histogram
- frequency hopped frequency keying
- frequency hopped frequency-shift keying
- frequency hopper
- frequency hopping
- frequency hopping spread spectrum
- frequency hopping technique
- frequency hopping/time-division duplex
- frequency hysteresis
- frequency identification unit
- frequency indicator
- frequency instability
- frequency interlace
- frequency interleaving
