18jan17:covering center of dish



Covering the center of the dish:

    The large opening at the center of the bowl would not allow currents to flow in the center of the dish.  We decided to cover the hole by stringing cables (3/8 inch) across the hole in both directions. The spacing between the cables (in both directions) was made much less than the wavelength (5 MHz: 60meters, 8 MHz:37.5 meters).

On 17/18 jan17 we covered the open hole with  cables:

The plots show the data we took while the hf was on (.ps) (.pdf)


processing: x101/170118/procday.pro

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