Now that is interesting... Is it the magnetism or the Helium? Be cool to
place a iPhone in a helium rich environment and see what happens. I think
it was the magnetism, as one cannot breathe Helium well. And after all,
Magnetism is a component of RF.
Back in the early days of Digital TV Broadcasting, there was an issue
discovered in Dallas Texas in 2001. WFAA wanted to do a test of coverage of
Digital HD from their facility late at night. So they got a DTV transmitter
for Channel 9 and plugged it into their Channel 8 antenna (it was broadband
enough to manage good SWR on 9 for the test, and Harris had a combiner all
ready to use from another demo).
They turned this system on on a Sunday morning at like 4 am to see how
coverage in DT matched coverage in NTSC.
Every heart monitor system in the Dallas area hospitals went nuts!
Seems that heart monitor systems use low level RF to communicate from the
patient to the display. These systems used "white area" frequencies in the
TV band and, in Dallas, since the nearest channel 9 is in Oklahoma, the
suppliers set the frequency for Channel 9... And since these are Part 15
devices, nobody at WFAA TV knew that they were on the Channel 9 frequency,
which they chose precisely because there was no other Channel 9 nearby.
It isn't known if anybody died, but for Belo Broadcasting and Harris, it was
a real fun Sunday morning.
Gents, I too am losing interest. Seems that there is a serious lack of
brains left in Ham Radio. And it is disheartening.
-lu-w4lt-
> -----Original Message-----
> From: FSG-public [mailto:fsg-public-bounces@lists.keekles.org] On Behalf
Of
> fsg-public-request(a)lists.keekles.org
> Sent: Wednesday, October 31, 2018 8:00 AM
> To: fsg-public(a)lists.keekles.org
> Subject: FSG-public Digest, Vol 38, Issue 2
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> Today's Topics:
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> 1. Thought this might be interesting (Bryan Fields)
> 2. Re: Thought this might be interesting (Ryan Owens)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 30 Oct 2018 22:28:06 -0400
> From: Bryan Fields <bryan(a)flscg.org>
> To: Florida Simulcast Group Public <FSG-public(a)lists.keekles.org>
> Subject: [FSG-public] Thought this might be interesting
> Message-ID: <0a8e81fd-2a33-451c-ce03-a36027e56852(a)flscg.org>
> Content-Type: text/plain; charset=utf-8
>
> https://www.reddit.com/r/sysadmin/comments/9mk2o7/mri_disabled_eve
> ry_ios_device_in_facility/
>
> As my interest in radio has been dwindling, excuse the spam to the group.
> --
> Bryan Fields, W9CR
> Florida Simulcast Group, Inc.
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 30 Oct 2018 23:40:20 -0400
> From: Ryan Owens <ryan(a)kj4shl.com>
> To: Florida Simulcast Group Public <fsg-public(a)lists.keekles.org>
> Subject: Re: [FSG-public] Thought this might be interesting
> Message-ID: <6A87841D-8A89-40D9-B194-5370071DD01B(a)kj4shl.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Awesome article really get you thinking. I have an overwhelming desire to
go
> stick my iPhone in a rich environment.
>
> 73s
>
> Ryan, KJ4SHL
> kj4shl.com <http://kj4shl.com/>
>
> > On Oct 30, 2018, at 10:28 PM, Bryan Fields <bryan(a)flscg.org> wrote:
> >
> >
> https://www.reddit.com/r/sysadmin/comments/9mk2o7/mri_disabled_eve
> ry_ios_device_in_facility/
> >
> > As my interest in radio has been dwindling, excuse the spam to the
group.
> > --
> > Bryan Fields, W9CR
> > Florida Simulcast Group, Inc.
> > _______________________________________________
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> > FSG-public(a)lists.keekles.org
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