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CX2SA > SATDIG 20.01.10 22:04l 155 Lines 5020 Bytes #999 (0) @ WW
BID : AMSATBB537
Read: GUEST
Subj: AMSAT-BB-digest V5 37
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<F4BWT<F1BBI<CX2SA
Sent: 100120/2003Z @:CX2SA.LAV.URY.SA #:34194 [Minas] FBB7.00e $:AMSATBB537
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: UO-11 mode S beacon (Clive Wallis)
2. Rob - KD4ZGW mobile in EM40 (Rick - WA4NVM)
3. Happy Birthday! Guess who is turning 20?? (Mark L. Hammond)
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Message: 1
Date: Wed, 20 Jan 2010 12:49:44 +0000
From: Clive Wallis <list1@xxxxx.xx.xx>
Subject: [amsat-bb] Re: UO-11 mode S beacon
To: "Auke de Jong, VE6PWN" <sparkycivic@xxxx.xx>, amsat-bb@xxxxx.xxx
Message-ID: <4B56FBE8.4080203@xxxxx.xx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Auke de Jong, VE6PWN wrote:
> Just a quick query regarding UO-11's Mode-S beacon at 2401.5.
>
> In a couple of places I have read that the Mode-S beacon is said to
> "transmit continuously", while others list that beacon as
> "non-operational". I have also noticed that it is listed a few times
> as having been heard(telemetry only) on the "oscar.dcarr.org" site
> inside their database, using Mode-S.
>
> I am wondering if it is worthwhile to listen for this beacon (using
> my newly installed BBQ-grid antenna), or is it definitely not making
> any noise?
>
The mode-S beacon is OFF, and has not been heard for many years. The
status telemetry indicates that only the VHF beacon is ON.
When the mode-S beacon was active, it did transmit continuously, a
steady carrier, very weak, with lots of Doppler. A trace of telemetry
modulation has been detected, although this may have been due to
accidental coupling within the satellite.
If you look on my website, www.g3cwv.co.uk there is an audio clip of
what it sounded like and a spectro-gram of the signal. The news archive
gives details of when it was transmitting mode-S.
HTH
73 Clive G3CWV
Hitchin, North Hertfordshire, UK
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Message: 2
Date: Wed, 20 Jan 2010 10:57:20 -0600
From: "Rick - WA4NVM" <wa4nvm@xxxxxxx.xxx>
Subject: [amsat-bb] Rob - KD4ZGW mobile in EM40
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Message-ID: <EC7857D79F3042A4886CED6783217A67@xxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi all on the BB,
Rob, KD4ZGW asked me to post that he will be working A0-27 this
afternoon on the 2052utc pass for anyone that needs that grid. (EM40)
Also, there is a slight chance he may be on the previous pass at 1912utc.
Also, does anyone know who to contact to try to get the ao-27.org
prediction up to date? The times are very late once again. Thanks
for any information.
73,
Rick WA4NVM
------------------------------
Message: 3
Date: Wed, 20 Jan 2010 13:51:16 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Happy Birthday! Guess who is turning 20??
To: amsat-bb@xxxxx.xxx
Message-ID:
<5d8cecfe1001201051p5ac52538w4baf0b377e08f0e7@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Happy Birthday! Guess who is turning 20 years old on January 22nd?
AO-16, DO-17, WO-18, and LO-19 !! :)
To honor the great work of AMSAT volunteers that created, built, and
launched the original "fleet of four" microsats exactly 20 years old,
we will be *attempting* to operate AO-16 in its special "voice mode"
on select passes during the period January 21-24. Operations will
be limited to stations that share the footprint with the command
station N8MH (grid FM05pj).
Mode FM Voice Repeater (Downlink is DSB. Operation is Intermittent)
Uplink: 145.9200 MHz FM
Downlink 437.0260 MHz USB and LSB
Please understand that because of the current orbit and a thermal
issue in the spacecraft, the satellite turns itself OFF via a reset
rather unpredictably--sometimes only moments after being turned ON.
So operations may be limited to very short periods of times (barely
enough for quick exchange). During some passes it might not work at
all...but I'm willing to give it a shot.
Watch for AO-16 to be turned ON for operations during the following
dates and times, posted below in UTC:
WinAos QTH: -78.7/35.4
----------------------------------------------------------
Day Object AOS (U) LOS
----------------------------------------------------------
21.01.2010 AO-16 19:02 19:16
22.01.2010 AO-16 08:56 09:10 <- (yes, that's 4am Eastern time ;)
22.01.2010 AO-16 20:10 20:25
23.01.2010 AO-16 08:25 08:40
23.01.2010 AO-16 19:39 19:54
24.01.2010 AO-16 19:09 19:23
24.01.2010 AO-16 20:49 21:02
Let's hope at least a few of you can make a contact! If nothing else,
you can listen to the familiar "hmmmmm" of 1200BPSK and reminisce.
73,
Mark L. Hammond [N8MH]
AO-16 Command Station
------------------------------
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End of AMSAT-BB Digest, Vol 5, Issue 37
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