Wednesday, May 25, 2022

Feeding the receiver. Combining the last few post. Artificial ground increases receiver output.

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  Using my new (to me) Emerson as the example. The new set is a couple years older than me, about as old as dirt! Anywho look at the antenna...
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Friday, May 13, 2022

Another look at power transfer.

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Note high efficiency occurs when Rs<<Rl. P = I^2 * R therefore low Rs = low lose and high Rl = higher power out.  Simple enough with r...
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...