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12402Re: [softrock40] RXTX 6.2 inductors

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  • John Ferrell
    Jul 1 5:56 AM
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      I am measuring at 7 MHz and I have not thought of a handy way to verify the calibration of the instrument. I will give it some thought. I will get back to you with the measured values that I noted.
      I was moving right along with the measurement technique after finding it very hard to keep track of the turns as I wound them (old guy, short term memory problems!) when it occurred to me the method may be at fault. I expect I am going to get to do them all again.
      I am working under the influence antibiotics for a while so I don't think my problems are indicators of anything regarding the kit!
      John Ferrell    W8CCW
      "Life is easier if you learn to plow
             around the stumps"
      ----- Original Message -----
      Sent: Saturday, June 30, 2007 9:04 PM
      Subject: Re: [softrock40] RXTX 6.2 inductors

      Hi John,
      Please post what inductance you are seeing with the various inductors.  Do you have a way of checking the calibration of your MFJ-269?
      Thanks and 73,
      Tony KB9YIG
      ----- Original Message -----
      Sent: Saturday, June 30, 2007 8:38 PM
      Subject: [softrock40] RXTX 6.2 inductors

      I find that when I wind the toroids to the designated number of turns I
      get much higher values of inductance than the specs list. Should I wind
      for the physical description or the measured inductance?

      I am measuring the inductance with a MFJ-269 antenna analyzer.

      John Ferrell W8CCW

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