[amsat-bb] Re: AMSAT-BB Digest, Vol 6, Issue 221
w5did at mac.com
Sun Apr 17 19:38:55 PDT 2011
To all those speculating on the reason for ARISSat not coming on, I recommend patience.
We will have a telecon with the Russian ham radio specialist and get the actual information from him.
As soon as we have real information it will be passed on.
The satellite is very robust and is probably still useable without any modifications. If a component has failed, we have another complete satellite already in Moscow. Any module that has failed could easily be replaced.
So let's just wait and see what they tell us.
ARISS US Hardware manager
On Apr 16, 2011, at 3:00 PM, amsat-bb-request at amsat.org wrote:
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> Today's Topics:
> 1. ARISSat-1 Failure to Transmit (Peter Portanova)
> 2. ARISSat-1/KEDR declared success by Roscosmos! (Alan P. Biddle)
> 3. Subject: Re: Verticals & Such on SSB Birds (Richard Lawn)
> 4. Re: ARISSat-1 - Battery Failure (tosca005 at umn.edu)
> 5. Re: ISS Packet using AGWPE (JoAnne Maenpaa)
> 6. Re: Subject: Re: Verticals & Such on SSB Birds (Dave Guimont)
> Message: 1
> Date: Sat, 16 Apr 2011 08:41:26 -0400
> From: "Peter Portanova" <wb2oqq at verizon.net>
> Subject: [amsat-bb] ARISSat-1 Failure to Transmit
> To: <AMSAT-BB at amsat.org>
> Message-ID: <0214AF1853F4487491EA8FC1CEA11C86 at Desk>
> Content-Type: text/plain; format=flowed; charset=Windows-1252;
> I don't possess any "inside information" on what the cause was of ARISSat-1
> not to be heard, however I have a theory. We know that Packet
> transmission's ended and began soon after the posted times for ARISSat to be
> powered on/off, this action was done because they agreed that the satellite
> "woke up". The power on sequence for ARISSat-1 is visual, meaning that if
> their was a battery failure they would not have seen the satellite power up.
> If we believe that this occurred a possible reason for not hearing the
> satellite was that it was connected to the wrong antenna, and seeing the
> coax in this area it is conceivable that this might be the cause. I know we
> will learn what actually occurred, at some point, it's our priority not
> theirs, perhaps we can have a contest, "pick the cause" and the winner can
> win a good night's sleep in a motel of their choice, satellite equipment not
> 73's Pete
> Message: 2
> Date: Sat, 16 Apr 2011 09:26:22 -0500
> From: "Alan P. Biddle" <APBIDDLE at UNITED.NET>
> Subject: [amsat-bb] ARISSat-1/KEDR declared success by Roscosmos!
> To: "AMSAT-BB" <amsat-bb at amsat.org>
> Message-ID: <7619564B827B4702B5E854FE39695EB2 at WA4SCA>
> Content-Type: text/plain; charset="us-ascii"
> Looks like we have all been wrong about this. Yesterday, just after
> midnight Moscow time, I found this on the Roscosmos site:
> Russian Educational Satellite Works 16.04.2011
> Russia's Kedr minisatellite designed by students from Kursk and carried to
> the ISS under UNESCO's program in January has went on air.
> Its first broadcast was carried out on April 11-13 to mark the 50 years of
> the first manned space flight.
> The 30-kg Kedr will transmit 25 greetings in 15 different languages, photos
> of the Earth, telemetry and scientific data.
> Hats off to the satellite designers at Kursk U.
> More seriously, aside from the "embellishments" concerning Kursk, which in
> fact only did their experiment package, it looks as if someone had a timed
> release news article which they forgot to cancel.
> Message: 3
> Date: Sat, 16 Apr 2011 11:39:26 -0400
> From: Richard Lawn <rjlawn at gmail.com>
> Subject: [amsat-bb] Subject: Re: Verticals & Such on SSB Birds
> To: amsat-bb at amsat.org
> Message-ID: <BANLkTim2p_3oSdh4vT_Q88Aq5jBTWNcioQ at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
> I too am always looking for ideas as I get older and know downsizing is
> sooner rather than later forcing me to move and shed my M2 rotatable pair.
> I've been slowly working on building double Moxon's for 440 and 2 meters
> both using #6 copper wire and trying to measure very carefully. Another list
> serve participant suggested I tried these as they have worked well for him
> and better than other stationary antennas he has tried. Next up for me when
> I have time is to try your Quadrifilars and I have another article or two on
> construction suggestions. My one big question is how did you get the #6 wire
> to solder? I use a gun and inevitably the joint breaks. What's your secret?
> Message: 4
> Date: 16 Apr 2011 10:47:57 -0500
> From: tosca005 at umn.edu
> Subject: [amsat-bb] Re: ARISSat-1 - Battery Failure
> To: R Oler <orbitjet at hotmail.com>
> Cc: Amsat BB <amsat-bb at amsat.org>
> Message-ID: <Gophermail.2.0.1104161047570.7641 at vs-a.tc.umn.edu>
> Content-Type: text/plain; format=flowed; charset=UTF-8
> On Apr 15 2011, R Oler wrote:
> There are LOTS of reasons that the bird could have failed, in my viewpoint
> the BEST one is that the battery has some issues. Operating the vehicle in
> a thermal environment that it was not designed for would be a first guess,
> followed by some sort of "crib death" issue, and next comes parts connected
> In any event the failure does not bode well for a successful sat
>> See if this makes it on the board. Robert G. Oler WB5MZO
>> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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> One small consolation is that if the ISS crew can't get it working before
> tossing it into space, it could (possibly) be brought back to Earth on a
> future return trip to be diagnosed and repaired on the ground.
> But let's hope it is something simple to fix up on the ISS and that someone
> on the crew can take a little time to fix it.
> But I also understand that none of those 3 scenarios are guaranteed (easy
> to fix, time to fix it, or return it to Earth).
> John P. Toscano, W0JT
> Message: 5
> Date: Sat, 16 Apr 2011 11:50:12 -0500
> From: "JoAnne Maenpaa" <k9jkm at comcast.net>
> Subject: [amsat-bb] Re: ISS Packet using AGWPE
> To: "'amsat-bb'" <amsat-bb at amsat.org>
> Message-ID: <001201cbfc56$5ac10fa0$10432ee0$@net>
> Content-Type: text/plain; charset="us-ascii"
> Hello Peter,
>> connect to ISS using AGWPE with my soundcard.
>> can anyone help me with this?
> I found the links to JE9PEL's setup guides posted on the UISS main page to
> be helpful in getting my soundcard packet running:
>> How does one connect to the ISS digipeater?
> 1. One good way to learn is to see what kind of packets others are sending.
> You can spy on the ISS 145.825 MHz packet log at http://www.ariss.net/
> 2. 99% of the packet digipeats via ISS are UI packets (they aren't connected
> to any specific node) and pretty much are an AX.25 CQ-with-text-string so to
> 3. To setup your packet path for the ISS setting the UNPROTO parameter to
> 'via ARISS'
> (UNPROTO CQ VIA ARISS) is about all that is needed for the average user. The
> digipeater at the ISS plugs in its specific callsign RS0ISS-3 or RS0ISS-4 in
> response to the ARISS alias. There is a pull-down menu in the UISS program
> where you can select ARISS.
> 4. An AX.25 hard-connection to the RS0ISS-11 Packet PBBS (C RS0ISS-11) is
> not recommended over highly populated areas. If you establish a connection
> to RS0ISS-11 the full AX.25 protocol for packet retries and timeouts takes
> effect. Now your hard-connection retries will compete with the dozens of UI
> packet transmissions and you'll never get to the PBBS anyways. You'll see
> the ISS digi faithfully retrying and retrying per AX.25 protocol as it goes
> over the horizon ... it will timeout over someone else's QTH. Most of the
> PBBS messages you occasionally see are "Hello There" postings and not worth
> the effort compared to the quick keyboard UI packet QSOs that many
> successfully complete.
> 5. If you run UI-View along with UISS and AGWPE you can get an APRS map
> showing the locations of the stations sending location data via ISS digi. I
> have one example of an ISS pass mapped at
> Hope this helps,
> 73 de JoAnne K9JKM
> k9jkm at amsat.org
> Message: 6
> Date: Sat, 16 Apr 2011 11:53:28 -0700
> From: Dave Guimont <dguimon1 at san.rr.com>
> Subject: [amsat-bb] Re: Subject: Re: Verticals & Such on SSB Birds
> To: Richard Lawn <rjlawn at gmail.com>
> Cc: amsat-bb at amsat.org
> Message-ID: <D2.3E.09483.5A5E9AD4 at cdptpa-omtalb.mail.rr.com>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>> I too am always looking for ideas as I get older and know downsizing is
>> sooner rather than later forcing me to move and shed my M2 rotatable pair.
>> I've been slowly working on building double Moxon's for 440 and 2 meters
>> both using #6 copper wire and trying to measure very carefully. Another list
>> serve participant suggested I tried these as they have worked well for him
>> and better than other stationary antennas he has tried. Next up for me when
>> I have time is to try your Quadrifilars and I have another article or two on
>> construction suggestions. My one big question is how did you get the #6 wire
>> to solder? I use a gun and inevitably the joint breaks. What's your secret?
> I use a torch with a large solder tip attached to it, es the torch
> heats the tip....If you are very careful not to oxidize the joint,
> just the torch will work.
> 73, Dave, WB6LLO
> dguimon1 at san.rr.com
> Disagree: I learn....
> Pulling for P3E...
> Sent via amsat-bb at amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
> End of AMSAT-BB Digest, Vol 6, Issue 221
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