The HMS1000 from Rohde & Schwarz is a RF Spectrum Analyzer with Frequency 100 kHz to 1 GHz, Frequency Resolution 1 Hz, Resolution Bandwidth 100 Hz to 1 MHz, Video Bandwidth 10 Hz to 1 MHz, DANL -135 to -115 dBm. Tags: Analyzer with Screen. More details for HMS1000 can be seen below.