Microwave preamplifier 1 to 26.5 G - The Agilent 70620B Preamplifier boosts the sensitivity of any 70000 series spectrum analyzer by 15 to 25 dB. System noise figures better than 8 dB at 2.9 GHz, 11 dB at 12.8 GHz, and 14 dB up to 26.5 GHz. Spurious testing reduced from days to hours from the wider bandwidth.