azonenberg changed the topic of #scopehal to: libscopehal, libscopeprotocols, and glscopeclient development and testing | https://github.com/glscopeclient/scopehal-apps | Logs: https://libera.irclog.whitequark.org/scopehal
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<d1b2> <azonenberg> So I just finished assembling and testing a PT5 using the 450 ohm HML
<d1b2> <azonenberg> Green = DUT, blue = probe w/ no de-embed, red/pink = probe w/ cable de-embedded
<d1b2> <azonenberg> S21 flatness. Orange = old probe w/ 100R, cable included
<d1b2> <azonenberg> Green = 100R cable de-embedded
<d1b2> <azonenberg> Red = 450R cable included
<d1b2> <azonenberg> Blue = 450R cable de-embedded
<d1b2> <azonenberg> Using -20.5 dB as nominal insertion loss, we peak at +2.8 dB at 6.6 GHz, and dip as far as -1.56 dB at 4.8 GHz
<d1b2> <azonenberg> -3 dB bandwidth after de-embedding the cable is higher than my 8.5 GHz VNA can measure
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