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Equipment / Re: Dueling Selecta- A Tennas (NOT Banjos)
« on: July 23, 2021, 1644 UTC »
I don't know if folks aware of the free IRCA reprints that are online now. There is a treasure trove of mediumwave articles in there. Some are relevant to the multiple loop discussion on this thread.
A few that come to mind are:
A-058 The 3-Parallel Loop Adcock System
A-061 Four Wall Loops for Better Nulls
The last one can be combined with the first one, and seems to be something worth experimenting if you want to try multiple nulls on a frequency. I expect that you could use a ferrite bar radio on a rotating turntable with these too. Testing that would be fun.
I haven't tried any of these but I will someday.
The address of the index to the articles is (they are all pdf files):
https://www.ircaonline.org/editor_upload/File/reprints/irca-reprint-index.pdf
And the International Radio Club of America main site address is:
https://www.ircaonline.org/default.php
There is a lot of reading in there that'll keep someone busy for a while.
A few that come to mind are:
A-058 The 3-Parallel Loop Adcock System
A-061 Four Wall Loops for Better Nulls
The last one can be combined with the first one, and seems to be something worth experimenting if you want to try multiple nulls on a frequency. I expect that you could use a ferrite bar radio on a rotating turntable with these too. Testing that would be fun.
I haven't tried any of these but I will someday.
The address of the index to the articles is (they are all pdf files):
https://www.ircaonline.org/editor_upload/File/reprints/irca-reprint-index.pdf
And the International Radio Club of America main site address is:
https://www.ircaonline.org/default.php
There is a lot of reading in there that'll keep someone busy for a while.