DSA70404B Tektronix DSA70404B Digital Serial Analyzer with 4 GHz analog bandwidth DSA71604C Digital Serial Analyzer with 31 Mpts memory DSA72004C Digital Serial Analyzer with 4 channels DSA71604 Digital Serial Analyzer with 16 GHz bandwidth DSA70804B Tektronix DSA70804B Digital Serial Analyzer with 4 channels DSA70604B Tektronix DSA70604B Digital Serial Analyzer with 6 GHz bandwidth DSA72004 Digital Serial Analyzer with 4 channels DSA70804 Digital Serial Analyzer with 4 channels DSA70404 Digital Serial Analyzer with 100 Megasample record length DSA71254C Digital Serial Analyzer with 12.5 GHz bandwidth DSA70604 Digital Serial Analyzer with 4 channels DSA71254 Digital Serial Analyzer with 12.5 GHz bandwidth