November 2010 - AMSAT-BB - mailman.amsat.org

Re: AO-51 reloaded and operational
by Rodney Waln 07 Nov '10

07 Nov '10

so just what would that anomaly be?? if known just courious, Rodney kc0zhf Message: 4 Date: Sat, 06 Nov 2010 09:32:25 -0400 From: "Mark L. Hammond" <marklhammond(a)gmail.com> Subject: [amsat-bb] AO-51 reloaded and operational To: amsat-bb(a)amsat.org Cc: ao51-modes(a)amsat.org Message-ID: <TpYk1f00956cfur05pYndA(a)gmail.com> Content-Type: text/plain; charset="us-ascii" Hi All, Thanks to a great team effort, we have the AO-51 repeater back up and operational. It will be several more hours before the PBBS is open for public access, but we expect it will be open around 2100utc today. We usually get asked, "What caused the crash?" We honestly don't know. It is unlikely to be related to the power budget; it would have just turned a transmitter OFF in that case. We often suspect the South Atlantic Anomaly as the cause, and based on the time frame of the crash this time, it is a plausible hypothesis. On behalf of the AO-51 Command Team, Mark L. Hammond [N8MH]

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NanoSail-D
by Trevor . 07 Nov '10

07 Nov '10

The listed launch date for NanoSail-D (437.305MHz) is in a couple of weeks, see http://www.southgatearc.org/news/november2010/nanosail_d_launch_date.htm 73 Trevor M5AKA Daily Amateur Radio Email/RSS News: http://www.southgatearc.org/ Email Your News To: editor at southgatearc.org Or Upload At: http://www.southgatearc.org/news/your_news_1.htm ----

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ISS Voice Contacts
by Rick Tejera 06 Nov '10

06 Nov '10

All, A little help here. Not quite sure if I'm working at getting NA1SS in the log from the right angle. First a description of my station: I'm using a Kenwood TH7-DA with a home brew Dual band yagi, mounted on an old telescope mount for tracking. I've programmed a split frequency into the memory set to receive on 145.800 and Transmit on 144.490. So far so good. Now the TH7-DA is a full duplex unit, but that only is available when working cross band (If I'm wrong here, some one please clue me in how to get that to work). Given this I can't hear myself on the downlink, which is kind of moot anyway since the ISS is essentially a simplex system. During the passes I've tried to work I hear the ISS responding to Earth stations. I've tried to transmit in breaks but how do I know if I'm hitting the station or not? I'm guessing I'm not getting in since I haven't gotten a response. Or worse, causing QRM to another station? I hope not and if so, apologies. I'm quite willing to be schooled on this, any suggestions would be most appreciated. 73 Clear Skies Rick Tejera Editor SACnews, Public Outreach Coordinator Saguaro Astronomy Club Phoenix, Arizona www.saguaroastro.org <http://www.saguaroastro.org/> saguaroastro(a)cox.net K7TEJ, AMSAT 38452

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VUCC #204!!
by Zachary Beougher 06 Nov '10

06 Nov '10

Hi Everyone! I just received VUCC #204 in the mail today, and I wanted to thank everyone for the grids and QSOs since I got on the birds last November. Special thanks to John – K8YSE, Jim – ND9M, Patrick – WD9EWK, Chris – KC0YBM, Michael – K4MOA, Doug – KD8CAO and Allen – N5AFV for the hard work they have put into their grid expeditions (I know I am forgetting someone, so please forgive me). Special thanks to all of the other stations that I have worked from their home QTH – each grid means a lot! 73! Zack KD8KSN

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BT7AAE XW-1 special event station to be working on AirShow China 2010
by Michael Chen 06 Nov '10

06 Nov '10

Hi, Guys, If you happen to be able to visit AirShow China 2010 in Zhuhai on Nov. 16-21, please visit the XW-1 booth in CAST pavilion. There, you will meet Alan, BA1DU and I as well as a bunch of members of CAMSAT. Meanwhile, you can see demonstration of some interesting XW-1 photos and activities. There will be a special event station set up on the site with the callsign BT7AAE (Aviation & Aerospace Exhibition) . We'll be working on all possible satellites passes during the time frame. If you can't visit us in Zhuhai. Don't worry, you can join us by watching live video stream or listening to live audio feed (URL later). Meanwhile, you can write down all you thoughts and ideas on twitter with the tag #BT7AAE, all twitter records with this tag will be displayed on the wall by a projector to all our visitors in real time during the exhibition, and you are likely to get feed backs from the site or from the world. Join us in this event. Michael Chen, BD5RV/4 AMSAT-China: http://www.camsat.cn ----------------------------------- Twitter: http://twitter.com/bd5rv Email: michael.bd5rv(a)gmail.com MSN: bd5rv(a)jsdxc.org Skype: michael-bd5rv

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AO-51 reloaded and operational
by Mark L. Hammond 06 Nov '10

06 Nov '10

Hi All, Thanks to a great team effort, we have the AO-51 repeater back up and operational. It will be several more hours before the PBBS is open for public access, but we expect it will be open around 2100utc today. We usually get asked, "What caused the crash?" We honestly don't know. It is unlikely to be related to the power budget; it would have just turned a transmitter OFF in that case. We often suspect the South Atlantic Anomaly as the cause, and based on the time frame of the crash this time, it is a plausible hypothesis. On behalf of the AO-51 Command Team, Mark L. Hammond [N8MH]

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Free Antennas - Located in Vicenza Italy
by Tom Davis 06 Nov '10

06 Nov '10

The following antennas are free to anyone who is willing to pick them up (I would hate to send them to the eco center.): 1.2 m parabolic dish with balanced mounting bracket. It was used with a Yaesu G-5400, and works well. 2 m 4 element beam 70 cm 10 element beam NOAA Loop Yagi 1691 Tom Davis IK3WVJ/KB7HTA

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aa5ck QSLs
by ted 06 Nov '10

06 Nov '10

My thanks to those I was able to contact this week during my trip making it very enjoyable. I'll get to work on the QSLs and sending them, just give me a little time. No SASEs or return cards are necessary. 73....ted....aa5ck

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WD9EWK from Kingman Hamfest starting on AO-7 @ 1425 UTC
by Patrick STODDARD (WD9EWK/VA7EWK) 06 Nov '10

06 Nov '10

Hi! With the current issues on AO-51, my first satellite demonstration from the Kingman (Arizona) Hamfest will be on the 1425 UTC AO-7 pass. This will go almost directly over the hamfest here in grid DM25xf, and I hope to make some contacts to show off satellite operating. I will also be on other passes throughout the day. If you hear me on, please give me a call. I have turned off my APRS radio, since I will not be moving from this location for a while. The last spot for WD9EWK-7 at http://aprs.fi/wd9ewk-7 shows the hamfest site. Once the hamfest wraps up, I'll turn on that radio once again. 73! Patrick WD9EWK/VA7EWK - Kingman, Arizona http://www.wd9ewk.net/

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question about antenna distances on tower
by N. Mahdinejad 06 Nov '10

06 Nov '10

Dear Amsat Members. I have read the KO6TH webpage at" http://home.wavecable.com/~ko6th/". This was very useful for me. Thanks you for publishing such information with clear pictures. I have question about the whole setup. "70cm antenna, 2.4ghz dish, rotor in the middle, tower cam in small box, and the 2m beam on the right." What is the required distance between these antennas to avoid any interference or other problems? I also have read the amsat paper" an introduction to amateur satellites", and have that questions about KG6IAL setup on page 23. Thanks for your help and attention. Best Regards. Nayer Mahdinejad.

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