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Re: sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]

To: "David I. Emery" <[email protected]>, cpunks <[email protected]>
Subject: Re: sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
From: [email protected] (coderman)
Date: Thu, 7 Nov 2013 23:32:13 -0800
In-reply-to: <[email protected]>
References: <CAJVRA1SxdcqAk4D4g1v2qChzCp45q5+aJ1yn=O3f_74R2xwn2A@mail.gmail.com> <[email protected]> <CAJVRA1TvAZaqe70VZkN5iP_-kLBbBogi3Q1tkhsxenYZwqc7TQ@mail.gmail.com> <CAGZkp1-vbT9RJ4KWOgRSqaw6VLCkQaWDTv=nZOH4HRmzZt8SWA@mail.gmail.com> <[email protected]>

On Thu, Nov 7, 2013 at 8:44 PM, David I. Emery <[email protected]> wrote:
> ... sending modulated tones over
> a speaker to a remote microphone is likely wickedly full of multipath
> ... Sound does
> not propagate all that fast compared to useful data rates after all.
>
>         So OFDM is good.

you can even run OFDM in 900Mhz with the Ubiquiti SR9 radios, oldies but goodies

combine MIMO with OFDM for even more multipath resistance and throughput.
 (MIMO audio channels ala dolby applied is amusing ;)

SDR MIMO kit leaves much to be desired, however...

Follow-Ups:
- sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (Andy Isaacson)

References:
- sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (coderman)
- sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (Andy Isaacson)
- Re: sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (coderman)
- Re: sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (Taral)
- sidebands of great justice [was: Meet “badBIOS,” the mysterious Mac and PC malware that jumps airgaps]
  - From: [email protected] (David I. Emery)

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