August 2011 - AMSAT-BB - mailman.amsat.org

5 in EM 55
by wa4hfn＠comcast.net 02 Aug '11

02 Aug '11

Congrats to Ron N8RO Award #015 5 in EM 55 He had 6 of us good job Ron WA4HFN DSamon EM55

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KB5WIA California Lost Coast Expedition (CM79/CM89/CN70/CN80) August 7-8, 2011
by David Palmer KB5WIA 02 Aug '11

02 Aug '11

Hi Everyone, Just a reminder (and before the flood of ARISSat emails in the list tomorrow!), this weekend I'll be heading out to the California Lost Coast to work the satellites from that rare grid CM79. CM79 has no roads, no power, no houses, nothing but lots and lots of ocean and a small triangle of mountainous forest. Plans are to operate right from the northeast tip of CM79 so if all goes well I'll be providing four grids at once: CM79, CM89, CN70, and CN80. Weather looks reasonable (cloudy mornings, sunny afternoons) for portable solar-powered operation. I'll operate on Sunday August 7th and Monday August 8th, and I've posted a list of potential passes on my blog. Operation will be during local daylight only, due to the remoteness of the area I don't want to be hiking down off that mountain after dark! I'll aim to work all available satellites -- AO-51 (if it keeps going strong like it has been), SO-50, and AO-27 for FM. VO-52, FO-29, and AO-07 (primarily mode B) for SSB. If ARISSat is up and running I'll try to get on that too, depending on congestion and satellite performance. I'll have my SPOT Locator beacon with me, so my exact location should be available from the link on my QRZ web page. If the current beacon position shows that I'm right at the intersection of -124 and 40 degrees, likely I'll be available on the sats as they go by. More details on my website at http://kb5wia.blogspot.com 73! de Dave KB5WIA

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Arissat-1 mode transistions
by g0mrf＠aol.com 02 Aug '11

02 Aug '11

Hi all. I see the first couple of orbits in range of the UK are in eclipse or passing from eclipse to sunlight. Is the satellite always in its 'low power mode' in eclipse? Also, when the satellite passes into sunlight, is the transistion to 'normal mode' instant or is there a short delay? This could be very interesting as we can see the ISS going into sunlight and we should be able to hear when Arissat does the same and then measure the time difference (Arissat first ISS second hopefully) Thanks David G0MRF

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ARISSat-1/KEDR How To Page
by JoAnne Maenpaa 02 Aug '11

02 Aug '11

Hello Everyone, The ARISSat-1/KEDR How To page with pointers from the developers about soundcard connection, BPSK telemetry reception, SSTV reception, and downloads has gone live at: http://www.amsat.org/amsat-new/ARISSat/ARISSatHowTo.php -- 73 de JoAnne K9JKM k9jkm(a)amsat.org Editor, AMSAT News Service

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Re: KB5WIA California Lost Coast Expedition (CM79/CM89/CN70/CN80) August 7-8, 2011
by Andrew Glasbrenner 02 Aug '11

02 Aug '11

>Wonder if the VUCC rules will allow 4 grids to be put on 1 card ? Might be a >tough sell to a card checker ! > >TK, K7TRK > Perfectly fine with documentation, and a card checker who knows VUCC, not just DXCC. I have a 4 grid card from KK5YY that's been checked. 73, Drew KO4MA

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ARISSat-1 deploy/NASA TV ISS Update August 2, 2011
by Brandon Rasmussen 02 Aug '11

02 Aug '11

I thought this video was an interesting explanation of the deploy of ARISSat tomorrow morning and an overview of the EVA. http://www.youtube.com/watch?v=8yMXeYOje3Q&feature=player_embedded Brandon K7BBR

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arissat-1 reception report
by Miguel berton 02 Aug '11

02 Aug '11

Reception report Arissat-1/Kedr 30/07/2011--19:08 utc -beacon packet y message . 20:46 utc-sstv, beacon packet y message . (adj. photo) 22:26 utc--sstv (adj.photo) 31/07/2011--00:05 utc--message (yuri gagarin) sstv 01:39 utc--message spanish (kp4) 01:46--beacon cw 145.920 mhz. RX: kenwood tm 721 --ant.: yagui 19 el. horiz.(homemade)-- soft sstv: MMSSTV. Frec.rx sstv: 437.550 mhz. 73 y dx. --MIGUEL BERTON --LU!FNR grid: FF97OA--lu1fnr(a)hotmail.com

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Re: Pin assignments on a stereo mic input?
by Bill Acito W1PA 02 Aug '11

02 Aug '11

I think I figured this out. Everything is wired correctly (see below). The issue is that the recorder has an extremely wide dynamic range, handling line level to mic input levels. It appears that the "AGC" looks at both channels, and adjusts both based on the "loudest" --- so if I have a large audio line input on one side (R), and a small mic input on the other (L) , the gain is set for the line and suppresses the mic into the noise. If I turn the volume down on the HT audio, the mic input comes up out of the noise. So I need a better, adjustable "pad" for the line level audio coming from the HT (better than the attenuating patch cable I am using)-- I was thinking of a "pot" divider with the input on the outer terminals, and the output off of the center pin--- should I use a big (100K) or small-value (100) pot? Linear, audio, or log taper? Bill W1PA -----Original Message----- From: Bill Acito W1PA Sent: Thursday, July 28, 2011 4:55 PM To: amsat-bb(a)amsat.org Subject: Pin assignments on a stereo mic input? One more for today... I am using a stereo digital recorder for logging. It has a stereo 3.5mm mic socket. I am using a "attenuating" patch cable from the HT audio into a "stereo splitter" plugged into the mic input (it has a stereo plug, and two mono sockets --- tip and base, and ring and base). The other side of the splitter has a mic. So the intent it to put the HT into one channel, and the external mic (recording me) into the other channel, when recording. I am only hearing the HT audio on playback. I have a feeling that the plug "base" connection is not ground -- it is on the ring or tip. Any one have or know the signal assignment on a recorder mic jack? base, ring , and tip? I would assume it would also match the assignment of the mic input of a PC (if you know that)? Bill W1PA

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dn25 dn25 and dn34
by kl 02 Aug '11

02 Aug '11

All, I plan on operating from DN24/34 starting with ao27 at 2017Z 8/2. I will work AO27, SO50 and AO51. I also plan to operate from DN25 today and tomorrow morning 8/3. 73 WC7V Kerry

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NASA TV SET TO TELEVISE SPACEWALK TOMORROW
by Jeffrey Koehler 02 Aug '11

02 Aug '11

Date: Mon, 1 Aug 2011 09:48:42 -0500 From: info(a)JSC.NASA.GOV Subject: NASA TELEVISION TO BROADCAST SPACE STATION SPACEWALK August 1, 2011 Kelly Humphries Johnson Space Center, Houston 281-483-5111 Michael Curie Headquarters, Washington 202-358-1100 Report #M11-161 NASA TELEVISION TO BROADCAST SPACE STATION SPACEWALK HOUSTON -- Two cosmonauts will conduct a six-hour spacewalk on Wednesday, Aug. 3, to continue outfitting the Russian segment of the International Space Station. NASA Television will broadcast the spacewalk beginning at 9 a.m. CDT. Expedition 28 Russian Flight Engineers Sergei Volkov and Alexander Samokutyaev will install laser communications equipment and replace experiments on the Zvezda service module. They also will retrieve a rendezvous antenna, relocate a boom structure to aid future spacewalks and deploy a small satellite equipped with an amateur radio transmitter and a student-built experiment. The duo will wear Russian Orlan spacesuits and will emerge from the Pirs docking compartment airlock at about 9:30 a.m. The spacewalk will be the third for Volkov, who performed two spacewalks as Expedition 17 commander in 2008. This will be the first spacewalk for Samokutyaev. For NASA TV downlink, schedule and streaming video information, visit: http://www.nasa.gov/ntv For information about the International Space Station, visit: http://www.nasa.gov/station

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