[amsat-bb] Re: AMSAT-BB Digest, Vol 2, Issue 244

Wilhelm Hartinger oe6ag at aon.at
Sun Apr 15 21:20:51 PDT 2007


----- Original Message ----- 
From: <amsat-bb-request at amsat.org>
To: <amsat-bb at amsat.org>
Sent: Sunday, April 15, 2007 9:00 PM
Subject: AMSAT-BB Digest, Vol 2, Issue 244


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> Today's Topics:
>
>   1. Re: Amateur as secondary payload (Dave hartzell)
>   2.  Dayton Room (Martha)
>   3. Re: CubeSat launch 17Apr07 06:46:35UT - INFO UPDATE (Mineo Wakita)
>   4.  FO-29 QSO (tjjapha at earthlink.net)
>   5. Re: FO-29 QSO (Sil - ZL2CIA)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 14 Apr 2007 14:10:10 -0700
> From: "Dave hartzell" <hartzell at gmail.com>
> Subject: [amsat-bb] Re: Amateur as secondary payload
> To: "Amsat BB" <amsat-bb at amsat.org>
> Message-ID:
> <1c096fd70704141410p38ef3d54idd10dede94e90937 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Pat,
>
> This topic seems to come up now and then.  The idea is actually pretty
> old, dating back to the early days of AMSAT, but I think here are the
> issues:
>
> 1) Most commercial satellite operators don't want to sacrifice space
> for an amateur payload.  They'd rather use any excess launch mass for
> station keeping fuel.
>
> 2) Risk:  The risks of carrying a third-party payload can be mitigated
> and well understood, but this takes time, effort and money.
>
> 3) Possible interference issues from the payload.
>
> 4) Power:  This can be budgeted for, but again, there are time, cost
> and money issues associated with a parasitic payload.
>
> 73,
>
> Dave
> N0TGD
>
> On 4/13/07, Patrick McGrane <N2OEQ at aceweb.com> wrote:
>> Greetings from Patrick N2OEQ
>>
>> What are some general comments regarding secondary amateur payloads on 
>> commercial satellites? I remember the old RS series and the new hamsat 
>> are secondary payloads. What are the costs involved versus building and 
>> launching individual autonomous satellites?
>>
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 14 Apr 2007 18:50:13 -0400
> From: "Martha" <amsat at verizon.net>
> Subject: [amsat-bb]  Dayton Room
> To: <amsat-bb at amsat.org>
> Message-ID: <001401c77ee7$438f7a10$027ba8c0 at Marmee>
> Content-Type: text/plain; charset="iso-8859-1"
>
> A single room has now become available in the AMSAT hotel block.  If you 
> are interested,  please call me at the office on Monday, after 10:00 AM. 
> 73- Martha
>
> ------------------------------
>
> Message: 3
> Date: Sun, 15 Apr 2007 09:17:40 +0900
> From: Mineo Wakita <ei7m-wkt at asahi-net.or.jp>
> Subject: [amsat-bb] Re: CubeSat launch 17Apr07 06:46:35UT - INFO
> UPDATE
> To: amsat-bb at amsat.org
> Message-ID: <19C77EF37AB724ei7m-wkt at asahi-net.or.jp>
> Content-Type: text/plain; charset=us-ascii
>
>
> Launch Date: 06:46:35 UTC, 17 Apr 2007
> Launch Site: Baikonur Cosmodrome, Kazakhstan
>
> PolySat CP3  436.845     1200bd  AFSK AX.25  P-POD B
> PolySat CP4  437.325     1200bd  AFSK AX.25  P-POD A
> CAPE-1       435.245     9600bd  FSK  AX.25  P-POD B
> LIBERTAD-1   437.405     1200bd  AFSK AX.25  P-POD B
> AeroCube-2   902-928     9600bd  GFSK        P-POD A
> CSTB-1       400.0375    1200bd  AFSK AX.25  P-POD A
> MAST         2400-2483.5         FHSS        P-POD C
>
> P-POD A
> 1 xxxxxU xxxxxxxx 07107.29310451  .00000000 00000-0   00000-0 0 0000x
> 2 xxxxx 098.0870 182.3615 0071000 198.4663 339.8290 14.5270000000001x
> P-POD B
> 1 xxxxxU xxxxxxxx 07107.29312766  .00000000 00000-0   00000-0 0 0000x
> 2 xxxxx 098.0870 182.3615 0090000 199.4051 339.9000 14.5050000000001x
> P-POD C
> 1 xxxxxU xxxxxxxx 07107.29311609  .00000000 00000-0   00000-0 0 0000x
> 2 xxxxx 098.0870 182.3615 0084000 198.3918 339.9240 14.5160000000001x
>
> http://cubesat.atl.calpoly.edu/pages/missions/dnepr-launch-2.php
> http://showcase.netins.net/web/wallio/CubeSat.htm
>
> ---------------------------------------------
> Name: Mineo Wakita / JE9PEL, JAMSAT member
> Mail: ei7m-wkt at asahi-net.or.jp
> URL : http://www.ne.jp/asahi/hamradio/je9pel/
> QTH : Yokohama Japan, GL:pm95tj
> Date: Apr 15, 2007
> ---------------------------------------------
>
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 14 Apr 2007 21:56:27 -0400
> From: "tjjapha at earthlink.net" <tjjapha at earthlink.net>
> Subject: [amsat-bb]  FO-29 QSO
> To: amsat-bb at amsat.org
> Message-ID: <380-22007401515627512 at earthlink.net>
> Content-Type: text/plain; charset=US-ASCII
>
> Domenico and All,
>
> It was a solid QSO with I8CVS on FO-29 from NYC (FN30).  You were very
> strong; it was a perfect pass, even though it was a short window between
> us.  I only heard 1 Eu stn on the next pass, which was a long pass with
> lots of time for N. Eu.
>
> We might be able to try again on Monday, but the wx forecast is bad just
> now.  If that turns out to be true, it won't be possible to get the gear
> outside.    We will have to wait until Monday morning here to see.  I will
> send you an email then to let you know if it's possible.
>
> Maybe someone on the bb can tell me why I can send messages to the bb, but
> don't ever get others' messages as email.  I must check the website to 
> look
> at messages.  Should I just unsubscribe and then subscribe again?
>
> Another question:  I've had very little success on AO-7 using just 5 watts
> and 7el on the uplink, 3 el and a preamp on the downlink.  Would it be a
> good investment to get a 20 watt amp for 70cm?  Would it make a big
> difference?  A 20 watt amp can be done portable, but not more than that.
>
> FO-29 is a great bird with very little activity, at least that I can hear.
> Being able to work I8CVS with a simple portable stn. is Exhibit A.
>
> 73,
> Tony, N2UN
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 15 Apr 2007 16:49:28 +1200
> From: Sil - ZL2CIA <zl2cia at paradise.net.nz>
> Subject: [amsat-bb] Re: FO-29 QSO
> To: tjjapha at earthlink.net, AMSAT-BB <amsat-bb at amsat.org>
> Message-ID: <4621AED8.10301 at paradise.net.nz>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>>
>> Maybe someone on the bb can tell me why I can send messages to the bb, 
>> but
>> don't ever get others' messages as email.  I must check the website to 
>> look
>> at messages.  Should I just unsubscribe and then subscribe again?
>>
> Tony,
>
> Two things come to mind. Of course, you may have checked these already,
> in which case I apologise for telling you something you already know, 
> but...
>
> The AMSAT-BB reflector will send to the email address it has recorded in
> its mailing database. This may be incorrect. You can check this by going
> to this webpage:  http://amsat.org/mailman/listinfo/amsat-bb
>
> Your ISP may be using a SPAM filter that is blocking amsat messages - or
> perhaps your own spam filter is doing this. I am using thunderbird as my
> mail client and had to tell it to accept AMSAT mail which it thought was
> spam.
>
> I lived in Amsterdam  for 11 years and managed a few trans-Atlantic QSO
> from there, via LEO. If you think FO29 is quiet where you are, you
> should hear it down here. I'm often the only station on and so
> experiment with various data modes, power levels, and pretty much
> anything else I can dream up.
>
> all the best.
>
> Sil - ZL2CIA
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> Sent via amsat-bb at amsat.org. Opinions expressed are those of the author.
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>
> End of AMSAT-BB Digest, Vol 2, Issue 244
> ****************************************
>
>
>
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