Frequencies, between 30 and 110 MHz are generated through direct fundamental oscillation and those between 100 kHz to 29.9999 MHz are through heterodyne down- conversion. Every frequency genererated is synchronized with the reference crystal oscillator and is settable with resolutions of 100 Hz in 100 kHz to 30 MHz range and 1 kHz in 30 to 110 MHz range. The delta F function directly reads increment and decrement (detuning frequencies) from the reference frequency.