Agilent/HP / Spectrum Analyzer / 8561EC Dynamic Range +30 dBm ~ -145 dBm Frequency Range 9 kHz ~ 6.5 GHz Input Impedance 50 ohms Residual FM <1Hz pk-pkxN^9 in 20ms Resolution Bandwidth 1 Hz ~ 1 MHz Video Bandwidth 1 Hz ~ 3 MHz