May 2008 - AMSAT-BB - mailman.amsat.org

help tuning AO-16
by W0DXZ＠aol.com 01 May '08

01 May '08

I have a lot of trouble tuning in stations on AO-16,,, strong sigs, but i just haven't got the knack of it,,, I put the receiver on USB,,, even the most minor adjustments dont do it... any hints? All sounds like you are listening to SSB on an AM radio... by the time I get a station tuned in, they are gone 73 Bob W0DXZ **************Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos. (http://autos.aol.com/used?NCID=aolcmp00300000002851)

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SEEDS reception...
by Mark Vandewettering 01 May '08

01 May '08

Well, I didn't get anything from Delfi C3 on its first pass over the West Coast, but I had heard that some people managed to get some signals from some of the other cubesats, so I set up for SEEDS on the low, second pass. Maximum elevation was only 9 degrees, and I recorded the pass with my FT-817 and a little voice recorder, tuning the doppler by hand. My morse skills are feeble, but even I could pick out the SEEDS in the telemetry stream. Audio is here: http://brainwagon.com/images/seeds.mp3 Congrats to all the teams! Mark

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AMSAT goes to the races -- photos
by Tom Clark, K3IO 01 May '08

01 May '08

This past weekend, W2GPS, WA4SXM and I attended the premier of AMSAT.ORG in Grand-Am Racing at the Virginia International Raceway (VIR). As reported earlier, Jim Jaeger (K8RQ) arranged for the AMSAT logo to appear prominently on the yellow Doran Racing Kodak #77 Dallara/Ford car driven by Brad Jaeger (Jim's son) and Memo Gidley. The Doran Racing web site has a gallery of photos featuring their #77 Kodak & #47 BSi cars available for viewing at http://www.doranracing.com/08_vir/photo.htm. The VIR race can be seen this coming Saturday on the cable SPEED CHANNEL from noon to 3PM EDT (16:00-19:00 UTC). AMSAT's logo will again be flying this coming weekend at the Laguna Seca track in California (see http://www.grand-am.com/rolex/schedule/event.cfm?eid=10). Rick and I have HUNDREDS of additional photos of the AMSAT car in action which we will post soon for your enjoyment. You will be able to see (a large photo of) the car in the AMSAT booth at Dayton. 73, Tom

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Cute-1.7 Follow-up Report
by Hiroki Ashida 01 May '08

01 May '08

Hello All, I'd like to inform you the current status of the Cute-1.7 + APD II. First of all, thank you very much for many kind cooperations! We are grateful to you all. According to the informations you gave us, now we believe that our satellite is normal. Using an engineering model, we confirmed the same phenomena, which has different battery voltages between one in CW frame and another one in FM packet, occurs on rare occasions. But in fact, there's no voltage reduction because the frequency of the CW beacon is very stable. We are going to operate it carefully, but no more an emergency mode. Thanks again! Best Regards, Hiroki Cute-1.7 + APD II -- Hiroki Ashida <hiroki(a)lss.mes.titech.ac.jp> Laboratory for Space Systems Department of Mechano-Aerospace Engineering Tokyo Institute of Technology TEL/FAX : +81-3-5734-2644 Room 554, Ishikawadai 1st Bldg, Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku, Tokyo, Japan

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Re: [eu-amsat] Re: Delfi-C3 RASCAL tuning & TLE's
by Luc Leblanc 01 May '08

01 May '08

On 1 May 2008 at 2:44, SV1BSX wrote: > > > > > > The KEPS i used are from spacetrack i know someone recommend to take those > > who appears on the ops DELFI page. If its only a KEPS matter > > they should be quite far from the real orbit or something is moving in a > > funny way up there. > > > > I will try to listen sooner on the evening pass over here > > > > > > > > Luc Leblanc VE2DWE > > > ....CORRECT Luc ! Probably that is the point. The Keps form Delfi-page is > now with... 10 min's delay !!! > > I have sent a new file with Keps, where the Delfi is ...10 mins ahead from > previous Kepls! > > He sent it me a friend of mine and he said it's 100% accurate. > > I will try it also with these new Kepls today afternoon. I refresh my Orbitron KEPS Mak and i just hear DELFI C 3 very loud but there is another problem who come out. The audio was very unstable the tone frequencies where not stable and some distortion seems to appears during the data transmissions making RASCALS completely unable to decode even a single packet. Theses tones distortions gradually increased up to a point the transmitter shuts down. The tone pointer on RASCALS was moving wild smashing both side limit of the scale and it was not what i got the first time i decoded my first packets. Why the tone frequencies are no more stable even with doppler correction remain a mystery but surely the control team will come up with some explanations as they seems to be aware of this behaviour. End of the story and a night to speculate on the subject! Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE

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CUTE telemetry, no Delfi-C3 heard
by David 01 May '08

01 May '08

Hello All, Copied this around 2008/05/01/00:43 UTC C U T E 8 7 C B A E A C 3 C 2 B 2 7 7 D 5 1 2 F 1 7 C U T E 8 7 C B A E B 7 3 C 2 B 2 8 6 D 4 E 3 0 1 7 C U T E 8 7 C B A E A 6 3 C 2 B 2 8 6 D 2 F 2 E 1 7 C U T E 8 7 C B A E A C 3 C 2 B F 8 B D 4 5 3 0 1 7 C U T E 8 7 C B A E A E 3 C 2 B 2 8 6 D 5 0 2 F 1 7 C U T E 8 7 C B A E B 2 3 C 2 B 2 9 6 D 4 E 2 D 1 7 Didn't hear Delfi-C3 during the pass. 73 de David VK5DG

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