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CX2SA > SATDIG 26.02.11 22:08l 119 Lines 4180 Bytes #999 (0) @ WW
BID : AMSATBB6125
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Subj: AMSAT-BB-digest V6 125
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Sent: 110226/2003Z @:CX2SA.LAV.URY.SA #:55203 [Minas] FBB7.00e $:AMSATBB6125
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: AO-51 S-band // WIFI USB dongle as receiver? (Pete Rowe)
2. Re: NASA Web Site (Clint Bradford)
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Message: 1
Date: Sat, 26 Feb 2011 10:44:54 -0800 (PST)
From: Pete Rowe <ptrowe@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 S-band // WIFI USB dongle as receiver?
To: ac0z@xxxx.xxxx amsat-bb@xxxxx.xxxx "Greg D."
<ko6th_greg@xxxxxxx.xxx>
Message-ID: <493093.86370.qm@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi Paul
For a $20.00 donation to AMSAT, I'll send you a downconverter.
Reply off line to PTROWE (at) yahoo.com
Pete
WA6WOA
--- On Sat, 2/26/11, Greg D. <ko6th_greg@xxxxxxx.xxx> wrote:
From: Greg D. <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 S-band // WIFI USB dongle as receiver?
To: ac0z@xxxx.xxxx amsat-bb@xxxxx.xxx
Date: Saturday, February 26, 2011, 12:08 AM
Hi Paul,
Well, interesting thought.? While the 2.4 gHz Wi-Fi and 13cm Ham bands do
overlap, the modulation used by Wi-Fi signals and AO-51 are very very
different.? AO-51's narrow band FM downlink is going to be totally ignored
by the frequency-hopping spread spectrum receive demodulator in the Wi-Fi
dongle.? I say that with some question, however, in that some Wi-Fi
equipment is capable of some interesting RF detection and interference
analysis, and might be hacked into some sort of digital receiver.? The trick
would be getting the right dongle and software, and then customizing the
detection algorithm and decoder.? Could be an interesting project for
someone with the right skills and access to what is probably a very
proprietary interface.
But straight out of the box, sorry, no.
Your best bet is to hunt around for an MMDS downconverter (I have a Drake
2880).? Most are quite inexpensive, and are easily converted for Ham use.?
Saddle that up to your antenna and rig, and you'll have a setup that's
probably overkill for AO-51.?
Greg? KO6TH
> Date: Fri, 25 Feb 2011 11:15:05 -0800
> From: ac0z@xxxx.xxx
> To: amsat-bb@xxxxx.xxxx ac0z@xxxx.xxx
> Subject: [amsat-bb]? AO-51 S-band // WIFI USB dongle as receiver?
>
> Hello to the AMSAT brain trust.? I am new to satellites and have a new
> person question:
>
>? > Is there any way to utilize a WIFI (2.4 GHZ, 13cm) USB dongle (with
> SMA ant. port) into a gain antenna, and successfully receive the S-band
> downlink from AO-51?? This is a 13cm transceiver, but I suspect the
> answer is no.? I already have a 24db gain dish, so I thought I would
> ask.? Outside of WIFI, is there anything useful I can do with this
> dongle?? The more conventional units (transverters, receivers, etc.) are
> a bit spendy for me right now.? thanks.? paul? ac0z
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
??? ???????? ?????? ??? ?
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Sat, 26 Feb 2011 10:55:24 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: NASA Web Site
To: amsat-bb@xxxxx.xxx
Message-ID: <7030C2A6-ED7B-434D-A460-0296C6C3B254@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... cannot access ... spotty access ...
Clean/clear/empty your browser's cache. And some sites still require the
"www." ... "www.nasa.gov" instead of "nasa.gov" ...
Clint Bradford
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 6, Issue 125
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