Originally Posted by
mille1j
the rule is arbitrary since none of these devices interfere with aircraft systems (according to my delta pilot friend). I put my devices to sleep when asked so as to not cause a hullaballoo, but i've never actually bothered to power down.
I am glad your DL pilot friend told you this.
I have a question though. A few years ago when I had to do some EMI testing work WRT getting a product a through FCC approval I was stunned to see how most devices were fairly quite but some screamed all over. Even as high as 10 harmonics up or so (OK, our own product was one such problem child, but not the point of this post).
It is much harder to measure the flip side, but it basically is the same (from theory). Some equipment could be very vulnerable to small signalls at specific freqs. And there is no concept of "but it's a different freq" as we are talking clocks not comm channels.
But this was almost 10 years ago, and now electronics are much better designed. Nobody would be using a cheap Chinease clone phone that might be emitting +40db over allowed levels.
As someone who has spent a few decades sometimes haiving to diagnose why complex electronic equipment glitches and fails, I feel much better that these two pilots (yours and other post) tell me it is no issue.
P.S., Does this qualify me as making a DYKWIA post
