<azonenberg>
v0.5 probe PCBs are now on the way back from fab
<azonenberg>
should have them by the weekend
<azonenberg>
these are the ones with an intentionally too-high impedance to see how that affects things
<azonenberg>
additionally i've been donig a ton more simulation of the current probe design working to fine tune things
<azonenberg>
should have results from that soon
<azonenberg>
The nice thing about using actual RF resistors like the vishay ones i've been working with is that you can find s2p's on the vendor website
<azonenberg>
So no more cutting and pasting of giant RLC equivalent circuits
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<bvernoux>
hello
<bvernoux>
I have good news on my VNA Qt (for HP 8753... VNA)
<bvernoux>
using internal raw data for S-parameters the time is improved significantly
<bvernoux>
before with FORM4 for all S-params (with Corr enabled) it take 48s and now with FORM1(internal raw data) it take 34s
<bvernoux>
also the optimized conversion from FORM1 Internal Data to Double I & Q take less than 2ms ;)
<bvernoux>
for all points
<bvernoux>
I will probably add a very nice Smith Chart display too in order to display the S-parameters ...