Additional Features: Frequency Range: 50 Hz to 6.5 GHz Sensitivity: -130 dBm Digital Bandwidths: 10, 30, 100 Hz Dynamic Range: 128 dB Signal to distortion, harmonic: 81 dB(<2.9 GHz); 110 dB(>2.9 GHz) Signal to distortion, intermodulation: 90 dB(< 2.9 GHz); 92 dB(> 2.9 GHz) Low spurious response and average noise level(displayed) Fully programmable(HP-IB) Synthesized Tuning Frequency counter Digital bandwidths AM/FM demodulator MIL-T-28800C rugged The Agilent 8561B, RF Spectrum Analyzer, features synthesized tuning, built-in frequency counter, digital bandwidths, AM/FM demodulator, and many optional features. The Agilent 8561B offers excellent performance for RF design and service applications. The Agilent 8561B has a frequency range of 50 Hz to 6.5 GHz. The 8561B has a synthesized tuning for drift-free, accurate measurements and has a sensitivity of  - 130 dBm with digital bandwidths of 10, 30, and 100 Hz. The Agilent 8561B, RF Programmable Spectrum Analyzer, meets the MIL - T- 28800C specifications for ruggedness.