Bob,
Well – I looked this up online, specifically wrt Wi-Fi which is primarily the RF of interest for recharging since the end use is cell phones. This frequency will be around 2-3 GHz. In the video below - it was 2.4 GHz. As this video shows, a single Faraday cage reduces the RF signal - but only by half !... and grounding the cage does not improve that. I am shocked (so to speak) to see that the effect of a metal cage is so small for this frequency. Of course, a signal which is reduced by half is still able to recharge an Orbo. This is Steorn’s gimmick, apparently. They assume that their audience believes that a single Farraday cage allows no signal, when in fact, it reduces the signal by half. Adding a second Wi-Fi router would presumably bring the signal back to an uncaged level! To do this right, Steorn (or the customer) would need at least 3 and probably four nested Faraday cages and also to turn off all Wi-Fi. That way it should be possible to do an accurate test. https://www.youtube.com/watch?v=9eUCyR7jesk Jones From: Bob Higgins Jones, A Faraday cage requires no ground. It just requires a continuous metal box enclosure. The Orbo test would be simple. Put the Orbo and the phone inside the box with its charging cable connected totally within the box. No cables enter or exit from the box. Close the box for XX hours and see if the phone is charged when it is removed. Then close the box and keep the Orbo entirely within the box. Then do it again - over and over. If you want to eliminate the possibility of energy gain from the outside, just don't let any cables go in or out of the box. Strictly speaking, you would also want to have a magnetic mu-metal shield around the Faraday box. On Tue, Jan 26, 2016 at 9:40 AM, Jones Beene <[email protected]> wrote: Observers should overlook the Steorn claim of Faraday cage testing as essentially meaningless… with a history. Steorn was saying the exact same thing about the other Orbo incarnations, going back 8 years. Look it up - it’s still online - same old BS then, as now. Even if they “got religion” and are honest this time around, consider what they are really saying. The problem with the claimed Faraday testing is that you cannot accurately test any device containing a large capacity battery unless you leave it there for months, knowing for sure that the cage is actually “earthed”. Steorn has in the past used a ground which could actually have functioned as an antenna ! (and probably did) At best, a Faraday cage would eliminate a possible source of battery recharging from RF. But Steorn did not show proper grounding… so we are back to the question of basic honesty. Side note: As moderator Bill B sez: the word "ground" can mean several things, several of which can actually be used to implement fraud – or it can be inadvertent, in the case of neon lights in the pub wiring… Ho, Ho Three more quarks for Muster Mac! 1-4 below are not proper earth grounds since they are easily tampered with. 1) A direct connection to the house or factory power supply via a negative terminal. 2) A “common” or negative connection of uncertain status based on having a third, or ground prong. 3) A connection to the inside of a shielded metal fuse box. 4) A connection to a metal mass which is much larger than the circuit (e.g. car chassis or “chassis ground”) …or 5) A direct electrical connection to a conductor purposely driven into the earth or to a copper water pipe which extends out of the house or factory (or pub) and into earth. Only 5 is a useful as a Faraday cage ground which is difficult to trick.
