Agilent/HP / Signal Generator / 8648CFrequency Range 9 kHz - 3.2 GHz Frequency Resolution .001 Hz Output Accuracy +/- 1 dB Output Range -136 dBm - +13 dBm Output Resolution .1 dB Programmable Interface HP-IB SSB Phase Noise Range -120dBc/20kHz Time Base Stability +/- 2 ppm