Interesting People mailing list archives
re TSA overreaction to Delta incident
From: Dave Farber <dave () farber net>
Date: Sat, 26 Dec 2009 16:57:41 -0500
Begin forwarded message:
From: Ole Jacobsen <ole () cisco com> Date: December 26, 2009 4:48:30 PM EST To: Dave Farber <dave () farber net> Subject: Re: [IP] re TSA overreaction to Delta incident Reply-To: Ole Jacobsen <ole () cisco com>
For IP: Amy Wohl said (about the Kindle): "All they would have to do is tell me to turn its wireless feature off." Sorry, no. ALL electronic devices (at least consumer grade ones) emit some sort of RF that (allegedly) "could interfere with the aircraft's sensitive navigation system." United will not even let you use your own noise cancelling headphones even though they provide similar ones (but those have been "certified" for aircraft use). Of course, any radio RECEIVER is also a transmitter (superheterodyne receivers---and most are---rely on a local RF oscillator). Thus the notion that "you can use X so long as its transmit function is off" is also bogus, what they really should say is "so long as the entire radio section can be powered down". We could argue about the wisdom of any of these rules, particularly given that even your average wristwatch emits some RF and nobody has ever been asked to turn that off. We could further discuss the wisdom of flying in an aircraft whose navigation system is allegedly so sensitive as to be suscepible to the RF emitted from the iPod in seat 22B, but the rules remain. (And if you want to read about this in more detail, dig out a issue of IEEE Spectrum from circa 10 years ago. I am, as so many others, stuck in an airport without access to the relevant library shelf ;-) Happy New Year Ole Ole J. Jacobsen Editor and Publisher, The Internet Protocol Journal Cisco Systems Tel: +1 408-527-8972 Mobile: +1 415-370-4628 E-mail: ole () cisco com URL: http://www.cisco.com/ipj
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Current thread:
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- <Possible follow-ups>
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident David Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)
- re TSA overreaction to Delta incident Dave Farber (Dec 26)