August 2009 - AMSAT-BB - mailman.amsat.org

Re: Grids on the Road
by Rafael Valdez G. 11 Aug '09

11 Aug '09

John, Congratulations for your VUCC, is impressive to have this achevement with the less possible stations. I also agree that all the /P stations have done a great job letting us to get the rarest grids on satellite... Anyway, griDXpeditions is a great way to hit the road an have aditional fun... 73 DE XE2RV DM41mh ------Original Message------ From: John Papay To: amsat-bb(a)amsat.org Sent: Aug 10, 2009 7:11 PM Subject: [amsat-bb] Grids on the Road Here are some interesting statistics on the movers and shakers in the world of grid dxpeditions. The list represents cards that I have received that have been used for VUCC filings or that will be used in a future filing. If you add them up, the 11 stations that I worked and needed in 4 or more grids total up to 100 grids, enough to file for the basic VUCC award! This is all in the past 2-1/2 years with the vast majority in the last year alone. These stations have operated from many more grids that I had already confirmed. Therefore, the number of grids they operated from is much higher than what I have listed below: Station Nr of New Grids -------------------------- WD9EWK 20 ND9M 16 KD4ZGW 15 KB0RZD 9 KD8CAO 8 N5AFV 7 N5ZNL 7 VO1ONE 6 W6GMT 4 VE6AB 4 WA4NVM 4 Thanks to all of you for making the effort to operate away from home and for giving all of us many new grids. John K8YSE _______________________________________________ Sent via AMSAT-BB(a)amsat.org. 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 <http://amsat.org/mailman/listinfo/amsat-bb>

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Re: SumbandilaSat Sept 15
by Rodney Waln 11 Aug '09

11 Aug '09

C@@L i know it it still a month away before it goes up and hope there are no more delays, is amsat thinking of a name to give it yet?? just courios, thanks Rodney kc0zhf

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logging software
by Douglas Anoman 11 Aug '09

11 Aug '09

Hello everyone, I'm looking for a great logging software for my contacts, and i'm open for suggestions. Thank You Douglas Anoman KC9MLN KC9MLN(a)AMSAT.ORG Amsat #37043

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keps
by Nigel Gunn G8IFF/W8IFF 11 Aug '09

11 Aug '09

DRAGONSAT 1 35690U 09038B 09221.89608423 +.00022175 +00000-0 +11546-3 0 00164 2 35690 051.6395 030.5236 0004962 117.8896 242.2609 15.80851730001648 ANDE DEB (POLLUX CYLIN) 1 35691U 09038C 09221.70802767 +.00035012 +00000-0 +18101-3 0 00126 2 35691 051.6372 031.5130 0003278 060.5793 299.5342 15.80733597001589 ANDE DEB (CASTOR CYLIN) 1 35692U 09038D 09221.70695586 +.00062797 +00000-0 +31457-3 0 00147 2 35692 051.6378 031.5075 0003507 047.1048 312.9989 15.81158879001585 ANDE POLLUX SPHERE 1 35693U 09038E 09221.70956582 +.00019877 +00000-0 +10632-3 0 00114 2 35693 051.6401 031.5281 0003927 062.6051 297.5208 15.80349868001585 ANDE CASTOR SPHERE 1 35694U 09038F 09221.71086029 +.00010853 +00000-0 +60531-4 0 00126 2 35694 051.6408 031.5388 0004491 065.1875 294.9492 15.80061125001583 ANDE DEB (AVIONICS DECK) 1 35695U 09038G 09221.71034237 +.00026177 +00000-0 +13913-3 0 00128 2 35695 051.6404 031.5352 0004608 067.4387 292.6889 15.80288280001582 -- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel(a)ngunn.net www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN.

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U-100 rotor on ebay
by w7lrd＠comcast.net 10 Aug '09

10 Aug '09

I have a U-100 "elevation" rotor on ebay. XYL says too much "stuff" laying around! http://shop.ebay.com/?_from=R40&_trksid=p4522.m38.l1313&_nkw=alliance+eleva… 73 Bob W7LRD

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Houston AMSAT Net special edition
by Bruce 10 Aug '09

10 Aug '09

The Houston AMSAT Net on Tuesday August 11 at 8PM Central time (Wednesday August 12 0100 UTC) have planned AMSAT President Barry Baines, WD4ASW, and AMSAT Vice-President of Human Spaceflight Will Marchant, KC6ROL, as their special guests. Join us on Echolink (conference *AMSAT*) or on our audio stream http://www.thathamkid.com/redirect.php?to=145.47 (works best when pasted directly into Winamp) 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT* Also live streaming MP3 athttp://www.amsatnet.com Podcast athttp://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitterhttp://www.twitter.com/amsat

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Re: New Cubesat - the Ultimate Fox Hunt
by G0MRF＠aol.com 10 Aug '09

10 Aug '09

In a message dated 09/08/2009 19:42:06 GMT Standard Time, nss(a)mwt.net writes: Why is it that all re-entries always end in the ball of fire over just a few minutes. Why cannot the re-enetry energy be disipated over a longer period to make it more survivable. Of course, if they could, they would. It appears to be the nature of the beast. You are entering an ever denser medium, so the drag has to escallate and you end up with the 6/7 minute burn. > >What if the surface of the re-entry vehicle radically changed during the re-entry phase? As the density of the atomosphere increased, the surface area decreases. An ablative system that instead of burning off a thin skin of material as in most re-entry systems, you planned on burning off 95% of the original drag volume? What re-entry profile could be achieved Could we make a golfball core "pinger" that could survive? Or, the not so 'cube'sat structure is an aerodynamic shape made from a cast ceramic material which glides in at a shallow angle allowing the energy to be dissipated over a much longer period of time. OK the solar cells burn off but an internal antenna would be OK as ceramics are fairly transparent to RF and a battery would provide the final hour or so of tlm. Would love to see the temp readings as it comes down. Would not love to be on the final end of the trajectory when it arrives. David G0MRF

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Wavetek 3000
by WILLIAMS MICHAEL 10 Aug '09

10 Aug '09

On the Wavetek 3000 signal generator, there are coax jumpers between the modules. What kind of plug/jacks are being used on these cables? It looks like SMC. I've lost lock on one of the modules and want to do some troubleshooting. Tnx, Mike (K9QHO)

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Re: US ANTENNA
by Jim Jerzycke 10 Aug '09

10 Aug '09

Steve Ford did a review on these a while back in QST. He said they work "As Advertised". Jim KQ6EA --- On Sun, 8/9/09, Fco. Jiménez-Martín Sánchez <ea1jm.fran(a)gmail.com> wrote: From: Fco. Jiménez-Martín Sánchez <ea1jm.fran(a)gmail.com> Subject: [amsat-bb] US ANTENNA To: amsat-bb(a)amsat.org Date: Sunday, August 9, 2009, 11:04 AM Hi there, Has anyone of you tried the us quadrifilar antenna to receive? It’s offered in this page: http://www.antennas.us/Store/ProductDetails.aspx?itemID=229# and it seems it’s a solution for me. Any report or comment is welcome. Thanks and regards from Spain, Fran. _______________________________________________ Sent via AMSAT-BB(a)amsat.org. 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

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New Cubesat - the Ultimate Fox Hunt
by Bob Bruninga 10 Aug '09

10 Aug '09

One university at this year's Utah Cubesat Workshop, is designing a re-entry cubesat. Talk about the ultimate ham radio fox hunt! Find this pebble somewhere over a few million square miles... The problem is having a transmitter to survive the re-entry... One figure is that about 300 Killowatt Hours of energy has to be disipated in a few minutes. Why is it that all re-entries always end in the ball of fire over just a few minutes. Why cannot the re-enetry energy be disipated over a longer period to make it more survivable. Of course, if they could, they would. It appears to be the nature of the beast. You are entering an ever denser medium, so the drag has to escallate and you end up with the 6/7 minute burn. What if the surface of the re-entry vehicle radically changed during the re-entry phase? As the density of the atomosphere increased, the surface area decreases. An ablative system that instead of burning off a thin skin of material as in most re-entry systems, you planned on burning off 95% of the original drag volume? What re-entry profile could be achieved Could we make a golfball core "pinger" that could survive? With the cheap $8k launches and only 3 month mission life, this idea of concentrating on making an interesting mission at the re-entry phase is a new opportunity.. The ultimate fox hunt? Bob, WB4APR

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