The ETST500M18G-200 from Etrontimes Technology is a RF Spectrum Analyzer with Frequency 0.5 to 18 GHz, Resolution Bandwidth 0.1 to 10 MHz, Analysis Bandwidth 50 MHz, Video Bandwidth 0.1 to 10 MHz, DANL -75 to -60 dBm/Hz. Tags: Analyzer with Screen. More details for ETST500M18G-200 can be seen below.