RF design improvisation

Alan Turner

Graphical methods that were used in the pre-computer age enabled complex tasks to be performed with an acceptable degree of accuracy, by practitioners who were often unaware of the science behind their tools.
To use an improvised compass in no way undermines Mr. Smiths superb invention, but demonstrates what can be achieved with very simple tools.

Created within the constraints of IP192:
1 - a circle (choose as many as you like)
2 - string
3 - black and white

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