frequency diversityfrequency diversity radarfrequency dividerfrequency divisionfrequency division duplexfrequency division multiaccessfrequency division multiple accessfrequency division multiplexfrequency division multiplexingfrequency domainfrequency domain analysisfrequency domain descriptionfrequency domain reflectometerfrequency doublerfrequency doublersfrequency doublingfrequency doubling transponderfrequency driftfrequency drift frequency deviationfrequency errorfrequency exchange signalingfrequency factorfrequency filterfrequency fluctuationfrequency froggingfrequency functionfrequency hoppingfrequency hourfrequency hysteresisfrequency independentfrequency independent antennafrequency indicatorfrequency influencefrequency interlacefrequency jumpingfrequency keyingfrequency leakagefrequency lockfrequency measurementfrequency meterfrequency mixerfrequency modulated jammingfrequency modulated laserfrequency modulated radarfrequency modulated radio altimeterfrequency modulated scanning sonarfrequency modulationfrequency modulation broadcast bandfrequency modulation broadcast channelfrequency modulation receiver
