Measurements, experiments

     
illustration picture
  1. Measurements on radio
  2. Other measurements
  3. LTspice modeling
  4. Both boardsides in one image.
    1. One semi-transparent picture created with Irfanview.
    2. Better way - picture with opacity regulation from 0 to 100.
    3. Another example - radio Byra-sonic.
    4. Antena - radio.