The LPT-3000R from LP Technologies is a RF Spectrum Analyzer with Frequency 9 KHz to 3 GHz, Frequency Resolution 1 Hz, Resolution Bandwidth 1 to 120 KHz, Video Bandwidth 10 Hz to 3 MHz, Attenuation Range 50 dB. Tags: USB / Computer Controlled. More details for LPT-3000R can be seen below.