Aardvark
First Officer
Flight distance : 384432 ft
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Mark The Droner Posted at 2018-6-30 15:28
Haha... I tried that once with the FPV trying to mimic lost signal for FPV. With my controller at the far end of the back of my property, I put the AC behind my house roughly 200 feet away and set it on the ground. Still had signal. Then I placed a cookie sheet leaned up against it so to the Phantom was like inside a metal tent. Still had signal. I put the AC in my house. Still had signal. I put the AC in my dirt cellar below the surface of the earth. Still had signal. WTF. Exasperated, I put my AC in the clothes dryer and shut the dryer door. I finally lost signal.
If it were properly connected to 'earth' the it should act like a Faraday shield, but there is one interesting note in Wikipedia on Faraday shields:-
A common misconception is that a Faraday cage provides full blockage or attenuation; this is not true. The reception or transmission of radio waves, a form of electromagnetic radiation, to or from an antenna within a Faraday cage is heavily attenuated or blocked by the cage, however, a Faraday cage has varied attenuation depending on wave form, frequency or distance from receiver/transmitter, and receiver/transmitter power. Near-field high-powered frequency transmissions like HF RFID are more likely to penetrate. Solid cages generally attenuate fields over a broader range of frequencies than mesh cages. |
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