3 ms·
>>I've never seen a cell phone (specifically an iPhone 5, A Nexus, a Samsung Galaxy S4, and a razr flip phone) transmit with airplane mode turned off. I think
by otoburb 7y ago
>>I've never seen a cell phone (specifically an iPhone 5, A Nexus, a Samsung Galaxy S4, and a razr flip phone) transmit with airplane mode turned off.
I think you meant "on"? If airplane mode was on, RF emissions were a strict test case executed in the lab Faraday cages where we ran new terminals through their paces prior to launch rollouts.
- kawfey 7y agoCorrect, typo. We were specifically testing the radiated and conducted (through its charging cable) emissions from the cellphone's processors, display, etc, and needed the radios off in a reverberation chamber.