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mjohnellis

mjohnellisis number911member,register2017-05-09 23:40

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mjohnellis The theme of the recently created

    mjohnellis reply recently

    • Reply: Andy The theme of creating DIY SOL Calibration Kit

      Please disregard my comment about the increasing length for N to SMA adapter. It does not apply and I am unable to edit the comment. 2017-12-05
    • Reply: Andy The theme of creating DIY SOL Calibration Kit

      After looking at the article more closely, I noticed the author used 45.9ps for the offset delay. I think this is the correction factor for your SOL. If you divide 14mm by speed of light you get 46.7ps which is pretty close. 2017-12-05
    • Reply: BG8NPK The theme of creating New Firmware Update for KC901V V 1.2.3

      I'm always nervous about updates but the last one was a good one. Has anyone had a problem with this update? 2017-12-05
    • Reply: Andy The theme of creating DIY SOL Calibration Kit

      Shouldn't the correction be a little longer because of the N to SMA adapter? This was a good article. It was interesting in another version, that two resisters for the load were better than one but four were worse than two. This was probably due to capacitance increasing faster than inductance was decreasing. 2017-12-05
    • Reply: soasystem The theme of creating No Fringing Capacitance Correction in KC901V

      I like your question, but is it possible this VNA is not accurate enough to worry about the fringing effect? I have used it for awhile and it gets me in the ballpark, but it is not going to compete with high end VNA's. Just the cal kit alone costs more than this VNA, but again, good question. I hope someone with more knowledge than me answers it properly. 2017-12-05

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