The 8683A Microwave Signal Generator is a rugged portable signal generator designed for demanding benchtop and field maintenance environment. Frequency range of 2.3 to 6.5 GHz with a resolution of 5 MHz. This unit provides AM and FM for conventional communication applications. Has a maximum of 0 dBm over the entire range. Amplitude modulation is 0-70%, FM modulation is /- 5MHz and phase modulation 10 Hz to 1 MHz continuously adjustable in 5 ranges.