[amsat-bb] Re: 2.4GHz broadband router on satellite?
glasbrenner at mindspring.com
Fri Feb 22 08:51:05 PST 2013
Close, but not on 2.4Ghz. We did that on 2m, 70cm, and 33cm.
Aeneas was the satellite I was thinking of that had a WiFi-like payload.
73, Drew KO4MA
>From: "Mark L. Hammond" <marklhammond at gmail.com>
>Sent: Feb 22, 2013 11:20 AM
>To: "Trevor ." <m5aka at yahoo.co.uk>
>Cc: amsat-bb <amsat-bb at amsat.org>
>Subject: [amsat-bb] Re: 2.4GHz broadband router on satellite?
>Maybe Drew KO4MA will reply--but I thought he did some "global
>listening" on 2.4GHz with AO-51 (frequency agile receiver). Seems
>like he published some plots in The Journal?
>Take home from what I recall--it was very noisy!
>On Fri, Feb 22, 2013 at 10:49 AM, Trevor . <m5aka at yahoo.co.uk> wrote:
>> Apart from power budget issues and Doppler the real killer will be the very high noise level on 2.4 GHz.
>> In urban areas you can expected to receive strong WiFi signals across all of 2402-2450 almost regardless of where you beam.
>> Any signals from a satellite would need to be strong enough to overcome this interference. 5 GHz is likely to suffer a similar problem in a few years as more use is made of that band for WiFi etc.
>> 73 Trevor M5AKA
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>Mark L. Hammond [N8MH]
>Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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