Friday, 28 May 2010

K1 build.



40m Pre-Mix Oscillator Signal Spectrum and Plot
Pin 4 J6 Filter board



20m Pre-Mix Oscillator Signal Spectrum and Plot
Pin 4 J6 Filter board

Adjust the pre-mix filter using an oscilloscope and pin 6 on J6 filter board.
(nice thing is same pin both bands) You realy need 4 hands to video this so apologies poor video.


A signal at last!
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2 comments:

  1. Unknown28 May 2010 at 10:27

    What kind of oscilloscope are you using?

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  2. M1KTA28 May 2010 at 10:32

    Cheap PC usb based dual channel Velleman PCUS1000.

    Works well enough and is a digital storage scope, included a couple x10 probes and also contains a 25MHz spectrum analyser.

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