Narda 757C precision attenuators, 5 & 6 dB (you choose) TESTED 6-12 GHz Cal

These are lab standards in perfect condition, see photos. They are far more precise than my analyzer, the key takeaway from the analyzer plots is that these are at their value per the cal data within the tolerance of my analyzer - I choose to test these on a 3 GHz analyzer because it has N type connectors and so I'd have fewer adapters, so while these have cal data to 12 GHz, you only see test results to 3 GHz - as expected the analyzer reports very close to the value for DC and 4 GHz.