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| Joined: | Jun 26th, 2009 |
| Location: | Heart Of Arizona Indian Country, Arizona USA |
| Posts: | 662 |
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Today, a room size enclosure is not necessary. A much smaller, portable enclosure can and is already in use by various individuals.
You see; another name for a screened room is a Faraday Cage.
A Faraday Cage be made from inexpensive conducting material like aluminum window screen; which is available at most hardware stores. It can also be made to a small size and still be effective.
For purposes of recording EVP’s, a Faraday Cage suppresses RF (radio frequency) by conducting the RF energy around the exterior of the enclosure. This causes the interior of the Faraday Cage to be clear of; and unaffected by certain frequencies. Using a conductive metal mesh allows one to view / record the item placed inside the enclosure.
An enclosure made to accommodate your digital recorder can go a long way to eliminating False Positives due to radio and other explainable RF sources.
Here is an article on building a simple Faraday Cage:
http://www.jeddaniels.com/2007/faraday-cage-part-1/
Here is an oversimplified youtube video on building an enclosure. This enclosure is open-ended however I’m sure you could figure out how to close up the ends.
http://www.youtube.com/watch?v=KQyvyg30S1Q