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Old 08-30-2013, 10:43 AM
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dR-Green dR-Green is offline
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Join Date: Apr 2008
Location: Wales, UK
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Hi Sebastian. Yes PVC tubing will be better than wood. Also ideally you should design the coil for a specific frequency/radio station, 1000 kc is a general example. When tuned to different frequencies the magnification factor will alter, the goal is to have highest magnification factor at the intended frequency so different tuning will work against this. Although you will need to experiment to find the highest magnification factor with a given design anyway.

For the overground wave reception you should use a normal crystal radio or a normal radio receiver. You need to receive the signal as normal and then measure the difference.
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