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Junior Varsity
Presonus Digital Mixer Questions
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<blockquote data-quote="Silas Pradetto" data-source="post: 30743" data-attributes="member: 34"><p>Re: Presonus Digital Mixer Questions</p><p></p><p></p><p> </p><p>I was under the impression that, all else equal, higher RF frequencies had higher attenuation in air (kind of like sound).</p><p></p><p>I found a <a href="http://www.phys.hawaii.edu/~anita/new/papers/militaryHandbook/rf_absor.pdf" target="_blank">chart</a> that shows this (look at the second one). Atmospheric absorption could easily be 4 times as bad for 5GHz vs 2.4GHz.</p><p></p><p>The <a href="http://en.wikipedia.org/wiki/IEEE_802.11" target="_blank">802.11</a> spec is quite interesting. It seems that recently 802.11a was expanded to include 3.7GHz with a rather ridiculous range. Maybe Presonus should recommend that one, even though I've never seen a device that uses 3.7GHz 802.11a!</p></blockquote><p></p>
[QUOTE="Silas Pradetto, post: 30743, member: 34"] Re: Presonus Digital Mixer Questions I was under the impression that, all else equal, higher RF frequencies had higher attenuation in air (kind of like sound). I found a [url=http://www.phys.hawaii.edu/~anita/new/papers/militaryHandbook/rf_absor.pdf]chart[/url] that shows this (look at the second one). Atmospheric absorption could easily be 4 times as bad for 5GHz vs 2.4GHz. The [url=http://en.wikipedia.org/wiki/IEEE_802.11]802.11[/url] spec is quite interesting. It seems that recently 802.11a was expanded to include 3.7GHz with a rather ridiculous range. Maybe Presonus should recommend that one, even though I've never seen a device that uses 3.7GHz 802.11a! [/QUOTE]
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