The SAE-90 from HAROGIC Technologies is a RF Spectrum Analyzer with Frequency 9 kHz to 9.5 GHz, Resolution Bandwidth 0.1 Hz to 10 MHz, Analysis Bandwidth 100 MHz, Real Time Bandwidth 100 MHz, DANL -165.1 to -90.1 dBm. Tags: USB / Computer Controlled. More details for SAE-90 can be seen below.