RSA3303A Tektronix RSA3303A Real-Time Spectrum Analyzer DC to 3 GHz RSA3408A Tektronix Real-Time Spectrum Analyzer with 2 USB ports WCA230A Wireless Communication Analyzer with DC to 3 GHz frequency range WCA280A Wireless Communication Analyzer with DC to 8 GHz frequency range RSA3303B RSA3303B Spectrum Analyzer Tektronix DC to 3.0 GHz RSA3308A Tektronix Analyzer RSA3308A DC to 8 GHz RSA3308B Tektronix RSA3308B Analyzer DC to 8.0 GHz RSA3408B RSA3408B Spectrum Analyzer with DC to 8.0 GHz frequency range