Radio Theory and design
Tuesday, March 8, 2022
Artificial Ground or Tuning the ground or neutralizing the reactance in the ground loop.
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The antenna tuner can have a section to tune the antenna and a section to tune the ground. You can search and find several commercial produ...
Tuesday, February 22, 2022
simulators can be fun but...
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I have been using EZNEC in WINE on a linux box. https://www.eznec.com/ It works quite well but the screen size is to small for my ancient e...
Z matching is not all to be concerned with
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How would you connect a dipole (balanced system) to an unbalanced receiver? Problem is the dipole is not grounded and the receiver terminal...
Monday, February 21, 2022
Z matching continued...
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Motorola app note Motorola AN-0721 Z matching RF amps. The place to start volume one Volume one of two. 526 pages of data to start t...
Wednesday, February 16, 2022
Z matching part 2
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If you read the first part of the tutorial I linked in my last post this may be your uh hah moment. I will post one sim that tells a lot abo...
Tuesday, February 15, 2022
definitive tutorial on Z matching ( 70 years ago )
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When I took this course in 1960's it was state of the art. It is a little different today but the basics will never change. That said if...
Sunday, February 13, 2022
Antenna tuner data
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Just putting this here so I don't misplace it. It matches a low Z transmitter to a high Z load. When feeding a high Z (100k's - meg...
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