OR: Put phone in microwave and set it for a slow-roast program. The interference will prevent harmful spy-rays from reaching the phone. Bonus, you can fast-charge Apple devices using the Microwave thanks to #AppleWave! On 5 May 2015 12:58:02 GMT+01:00, Georgi Guninski <guninski@guninski.com> wrote:
removing the battery may vary among devices. Snowden told people visiting him in Hong Kong to put their phones in the refrigerator, which is a Faraday cage. Also, using a bag is arguably less hassle than removing the battery. For an RF-shield, I think that using a microwave oven would be much superior to a refrigerator. By definition, a microwave oven is designed to contain a huge (1 kilowatt) emission of 2.45 GHz signal (close to those of cell phone frequencies, some are 1700-1900 MHz), so
On Sun, May 03, 2015 at 08:51:02PM +0000, jim bell wrote: that humans can live with reasonable safety a foot or so away from it. This implies a shielding of around 60 decibels.I'd keep a container of water inside the microwave cavity to absorb emitted microwave-band signals. (And, of course, you should detach the power-cord of the microwave, to avoid accidently frying your valuable electronics.)As for smartphones, my understanding is that most of them don't have detachable batteries. They do, however, have "airplane-mode" function, where (presumably) they are set to not emit any signals in any band. That doesn't mean they couldn't hear, or record, audio, or detect RF signals, for recording and later transmission.
Jim Bell N7IJS Proudly standing as the LAST "Tech-Plus" Ham (Amateur Radio Operator) in the World.
For maximum safety: ;)
1. Put the phone in airplane mode 2. Physically remove the battery 3. Put the phone in tinfoil faraday cage as explained here 4. Put the faraday cage in the microwave oven
-- Sent from my Android device with K-9 Mail. Please excuse my brevity.