Agilent/HP / Signal Generator / 8643A/002/010Frequency Range 252 kHz - 1 GHz Frequency Resolution 0.01 Hz Output Accuracy +/-1 dB Output Range +13 dBm - -137 dBm Output Resolution 0.01 Hz Programmable Interface -130 dBc/H SSB Phase Noise Range HP-IB Time Base Stability 5x10-10/da