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

objects nunber
by Nick Pugh K5QXJ 26 Sep '09

26 Sep '09

What is the best guess on the object numbers on the last two group of cube sat launched recently? Thanks nick

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RS-28 CW telemetry
by Mike Rupprecht 26 Sep '09

26 Sep '09

17:45 UTC strong CW beacon on 435.266 MHz rs28 ubs163 uaba165 uabb165 ibs3 iaba126 iabb126 ispa0 ispb126 taba132 tabb131 tsep135 mcon69 sma138 smb123 mra6 mrb30 rs28 ubs16. uaba179 uabb179 ibs1 iaba123 iabb133 ispa4 ispb129 taba132 tabb131 tsep135 mcon69 sma98 smb85 mra6 mrb30 rs28 ubs165 uaba167 uabb167 ibs3 iaba126 iabb126 ispa0 ispb127 taba132 tabb131 I used NORAD #35869. Total difference in doppler ~1KHz, not sure if this is the right TLE See here: http://www.dk3wn.info/p/?p=8471 73, Mike DK3WN

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AO-7 help
by Randy 26 Sep '09

26 Sep '09

Hi all .. I am having trouble working AO-07 .. Could just be newbie syndrome... But I truly Am not sure why I cant.. I have an FT-897D, 13 element 2 meter yagi and a 11 element 432 yagi. I can also effectively use the 2 meter yagi on 432.. Matches well And have used it on repeaters up to 60 miles away on 440.. I use the translation table provided by AMSAT and the books.. Have those programmed into the radio as splits.. LSB 432.XXX up and USB 145.XXX down . ( mode B like this morning ) I can hear PLENTY of QSO's. I cannot make contact with anyone .. I even got a little desperate and pulsed my handheld On the 432 antenna ( like CW dits ) ( harder to id that way LOL ) And tuned the receiver and cannot find my signal .. Tell me its somehting stupid and simple LOL v/r Baffled Randy - N2CUA

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Re: Arrow antenna reconfiguration results - UPDATE
by Mike Ryan 26 Sep '09

26 Sep '09

I've had my battles with desense. Originally I was going in the direction that the RX antenna was in the envelope of the TX. It made sense and some elmers suggested it. Even at low power (5-10W) and separating antennas by 30 ft it would still de-sense, but not as pronounced (omnidirectional antennas). I fixed it two ways. The biggest poroblem was my linear. To be kind to my FT857 I ran it at low power through a mirage amp to get output up to 35 watts or so max. 90% of my problem was that amp (which I assume was pushing sprurious or harmonics). If I took it offline and ran the FT857 at the same 35W the desense was greatly reduced but not quite gone. The remainder was taken care of by using a second diplexer as a poor mans low pass filter. Just put a dummy load on the side I didnt need. Now the omnis can be close without this problem and I even built a pair of cheap Jpole yagis on the same boom (definately in the same envelope) but no desense. I never got around to trying another amp. I was just delighted to have the problem solved. So there's my story in case it helps someone else consider this possibility instead of spending all the hours chasing it that I had to endure! Mike WB1AAT -----Original Message----- From: amsat-bb-bounces(a)amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Sent: Friday, September 25, 2009 6:43 PM To: Gary "Joe" Mayfield Cc: 'AMSAT-BB' Subject: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE as in the texts below, there is something else going on here. That Diplexor can not be all that bad. two reasons. How many db down is the front to side of that antenna? and I can not imaging someone would sell a diplexor that has greater than 20 db of losses. because of the statement that how criticalpolarity was with the original, and now the antenna has to be nearly 90 degrees cross polarized to make it drop out uhh that close to 30 db, at least 20,, something else is going on here

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Road Trip to Georgia (USA)
by w6zkh＠comcast.net 26 Sep '09

26 Sep '09

Hello All: We've have started out road trip vacation to the state of Georgia, and will be operating a various locations along the way and the return. Have no idea where we will stop, nor what grids, but will be set up for any of the 3 FM bird passes in the late afternoon and mornings. If you hear me on, give me a shout. I QSL 100% via direct or eQSL.cc. Hope to hear the calls working with HT and ELK, 73 de John W6ZKH now in DM65

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Re: All Satellites
by John W Lee 26 Sep '09

26 Sep '09

I wonder how many of those 50 are able to handle ham radio 2-way contacts ? K6YK On Fri, 25 Sep 2009 15:09:43 +0000 Nigel Gunn G8IFF/W8IFF <nigel(a)ngunn.net> writes: > Here's a list of all (known to me) satellites still in orbit with > some designed in (but not necessarily operational) > amateur band functionality. > > For those that think nothing has been happening recently, there have > been 26 (so far) satellites launched this year, 13 > in 2008 and 11 in 2007. Thats 50 birds in less than the past 3 > years. > > Catalog Number Common Name International > Designator Comments > 1293 OSCAR 3 1965-016F > 6236 OSCAR 6 1972-082B > 7530 OSCAR 7 1974-089B > 10703 OSCAR 8 1978-026B > 14129 OSCAR 10 1983-058B > 14781 OSCAR 11 (UoSAT 2) 1984-021B > 16909 JAS 1 (FUJI 1) 1986-061B > 20437 OSCAR 14 (UoSAT 3) 1990-005B > 20438 OSCAR 15 (UoSAT 4) 1990-005C > 20439 OSCAR 16 (PACSAT) 1990-005D > 20440 OSCAR 17 (DOVE) 1990-005E > 20441 OSCAR 18 (WEBERSAT) 1990-005F > 20442 OSCAR 19 (LUSAT) 1990-005G > 20480 JAS 1B (FUJI 2) 1990-013C > 21039 SL-12 R/B(1) 1990-116B > 21087 INFORMATOR 1 1991-006A > 21089 COSMOS 2123 1991-007A > 21575 OSCAR 22 (UoSAT 5) 1991-050B > 22825 KITSAT B 1993-061C > 22826 POSAT 1 1993-061D > 22828 ITAMSAT 1993-061F > 22829 EYESAT A 1993-061G > 23439 RADIO ROSTO 1994-085A > 24278 JAS 2 1996-046B > 24305 UNAMSAT 1996-052B > 25396 TMSAT 1998-043C > 25397 TECHSAT 1B 1998-043D > 25509 SEDSAT 1 1998-061B > 25520 PAN SAT 1998-064B > 25544 ISS (ZARYA) 1998-067A > 25636 SUNSAT 1999-008C > 25693 OSCAR 36 (UoSAT 12) 1999-021A > 25756 KITSAT 3 1999-029A > 26063 OPAL 2000-004C > 26545 SAUDISAT 1A 2000-057A > 26548 TIUNGSAT 1 2000-057D > 26609 AMSAT OSCAR 40 2000-072B > 26931 PCSAT 2001-043C > 26932 SAPPHIRE 2001-043D > 27605 RUBIN 2 2002-058A > 27607 SAUDISAT 1C 2002-058C > 27842 DTUSAT 2003-031C > 27844 CUTE-1 2003-031E > 27845 QUAKESAT 2003-031F > 27847 CANX-1 2003-031H > 27848 CUBESAT XI-IV 2003-031J > 27939 MOZHAYETS 4 2003-042A > 28375 AMSAT ECHO 2004-025K > 28650 HAMSAT 2005-017B > 28890 BEIJING 1 (TSINGHUA) 2005-043A > 28891 TOPSAT 2005-043B > 28892 UWE-1 2005-043C > 28893 SINAH 1 2005-043D > 28894 SSETI-EXPRESS 2005-043E > 28895 CUBESAT XI-V 2005-043F > 28897 SSETI-EXPRESS DEB 2005-043H > 28898 MOZ.5/SAFIR/RUBIN 5/SL-8 2005-043G > 28941 CUTE 1.7 2006-005C > 29252 GENESIS 1 2006-029A > 29479 HINODE (SOLAR B) 2006-041A > 29655 GENESAT 2006-058C > 29712 PEHUENSAT 1 2007-001D > 31117 EGYPTSAT 1 2007-012A > 31122 CSTB 1 2007-012F > 31126 MAST 2007-012K > 31128 LIBERTAD 1 2007-012M > 31129 CP3 2007-012N > 31130 CAPE 1 2007-012P > 31132 CP4 2007-012Q > 31135 AGILE 2007-013A > 31140 NFIRE 2007-014A > 31789 GENESIS 2 2007-028A > 32781 GIOVE-B 2008-020A > 32783 CARTOSAT 2A 2008-021A > 32784 CANX-6 2008-021B > 32785 CUTE 1.7 & AOD 2 2008-021C > 32786 IMS-1 2008-021D > 32787 COMPASS 1 2008-021E > 32788 AAUSAT CUBESAT 2 2008-021F > 32789 DELFI C3 2008-021G > 32790 CANX-2 2008-021H > 32791 SEEDS 2008-021J > 32792 RUBIN 8/PSLV 2008-021K > 32794 AMOS 3 2008-022A > 32953 YUBILEINY 2008-025A > 33492 GOSAT (IBUKI) 2009-002A > 33493 PRISM (HITOMI) 2009-002B > 33494 SPRITE-SAT (RISING) 2009-002C > 33495 KAGAYAKI 2009-002D > 33496 SOHLA-1 (MAIDO-1) 2009-002E > 33498 STARS (KUKAI) 2009-002G > 33499 KKS-1 (KISEKI) 2009-002H > 33595 EXPRESS AM-44 2009-007A > 34808 ANUSAT 2009-019B > 34941 PROTOSTAR 2 2009-027A > 35002 PHARMASAT 2009-028B > 35003 HAWKSAT 1 2009-028C > 35004 CP6 2009-028D > 35005 AEROCUBE 3 2009-028E > 35008 MERIDIAN 2 2009-029A > 35690 DRAGONSAT 2009-038B > 35693 ANDE POLLUX SPHERE 2009-038E > 35694 ANDE CASTOR SPHERE 2009-038F > 35866 OBJECT B 2009-049B > 35867 FREGAT/IRIS 2009-049C > 35868 OBJECT D 2009-049D > 35869 OBJECT E 2009-049E > 35870 SUMBANDILA 2009-049F > 35871 BLITS 2009-049G > 35931 OCEANSAT 2 2009-051A > 35932 OBJECT B 2009-051B > 35933 OBJECT C 2009-051C > 35934 OBJECT D 2009-051D > 35935 OBJECT E 2009-051E > 35936 RUBIN 9.1/RUBIN 9.2/PSLV 2009-051F > > > > > -- > 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. > > _______________________________________________ > 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 > > ____________________________________________________________ Wanna lose weight? Weight Loss Programs that work. Click here. http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTFoYeubv8jWc2J01x17RB9rxq…

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Re: All Satellites
by G0MRF＠aol.com 26 Sep '09

26 Sep '09

In a message dated 25/09/2009 22:10:17 GMT Standard Time, m5aka(a)yahoo.co.uk writes: Hi Bill, You're right, the potential is there for a 3U CubeSat that can achieve an apogee > 1400 km. We'd need 1U of that to house the linear transponder but as you say the rest could be used for the propulsion system. As yet, as far as I'm aware, no-one has actually demonstrated a working propulsion mechanism that can fit in 2U but I'm convinced this is possible. The launch costs for a 3U CubeSat into 700 km LEO are well within the reach of the Amateur community, our challenge is to develop a means of raising the apogee. 73 Trevor M5AKA Hi Trevor. There is a propulsion system being developed for cubesats using a hydrazine mono propellant that uses catalytic decomposition to produce a large volume of hot gaseous products. If initial claimed results can be repeated in production, then that unit can be propelled from typical LEO up to 1400km circular or 2000km eliptical. It's based on a 3U structure. It's not MEO, but its a lot more fun than 500km David G0MRF

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Re: All Satellites
by Mark VandeWettering 26 Sep '09

26 Sep '09

> Good point. Not everybody is interested in monitoring the one way > downlinks on the majority of these more recent birds. Why is it that > there is no problem getting large numbers of these types of satellites > into orbit, yet good old fashioned two way linear and FM transponder > birds are relatively far and few between? > Regards and 73, > James - ZL4JM/VK5JC Well, after the launch of AO-51 here in the U.S., the AMSAT membership seemed to think that they should concentrate their efforts on a HEO launch. The problem is that there really aren't any viable launch options for HEO satellites. We aren't alone either: P3E is considerably further along than any of the AMSAT-NA projects, and yet has no hint of how it might get boosted to orbit. Cubesats are being launched for one simple reason: people have figured out how to fund low mass sats to low earth orbit. We could probably launch a couple dozen LEO cubesats (or more) for what it would cost to put just one payload into HEO, but nobody seems to really be interested in doing that, since it won't give anyone the DX that they want. I think there have been some interesting developments in micro propulsion technologies, but it is still challenging to get a cubesat in orbit that can serve as a transponder within the weight and space limitations that cubesats have. Perhaps when commercial vehicles like the Falcon 9 begin launching, we'll see a sufficient reduction in payload boosting costs to make raising the money for a HEO satellite with significant mass reasonable. We shall have to see. Mark K6HX

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Sat status - new feature
by Andrew Rich 26 Sep '09

26 Sep '09

Added a panel display http://vk4tec.no-ip.org/sat_status/ Any other sats that make it onto the APRS_IS let me know and I can add ---------------------------------------------------------- Andrew Rich Airways Technical Officer Grade 4 Surveillance - RADAR ADS-B Amateur Radio Callsign VK4TEC email: vk4tec(a)tech-software.net web: www.tech-software.net

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Out of the office
by Martha 25 Sep '09

25 Sep '09

I will be out of the office on Monday. -- 73- Martha

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