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

Antenna test
by Jacob Tennant 05 May '10

05 May '10

Well after some frantic construction last night and this evening I have got my old trusted Cushcraft 14810S and 719B mounted on a cross boom angled up apprx. 30 degrees and tilted to 45 degrees between H and V. I see from here ISS will be up in just a few minutes and SO-50 shortly thereafter so going to give them a try to see if I can (A) hear them better than before, and (B) Try to make my first ever satellite contact. Well, here goes nothing. . . Jacob Tennant - K8JWT

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AO51 Changing the power
by PY5LF 05 May '10

05 May '10

Hello AO51 change the power many times during the last pass over south of Brazil . http://www.youtube.com/watch?v=644Jm1_aoJ8 I think the power management already are working , right ? 73 PY5LF LUCIANO FABRICIO CURITIBA-PR-BRAZIL GG54JM <http://www.qrz.com/db/py5lf> http://www.qrz.com/db/py5lf <http://www.falautomation.com.br/> www.falautomation.com.br

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Collapsible Fabric Antenna for Satellite Portable
by Trevor . 04 May '10

04 May '10

Diana Eng KC2UHB has developed an ingenious antenna for satellite working. See the MAKE: magazine article at http://blog.makezine.com/archive/2010/05/collapsible_fabric_yagi_antenna.ht… 73 Trevor M5AKA Daily Amateur Radio Email/RSS News: http://www.southgatearc.org/ Email Your News To: editor at southgatearc.org Or Upload Using Form At: http://www.southgatearc.org/news/your_news_1.htm ----

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Delaware on AO-51
by John Papay 04 May '10

04 May '10

WA3WUL has been working via AO-51 from Delaware recently. He seemed to hear very well and worked quite a few stations on this morning's pass at 1138z, 4 May 2010. According to QRZ.com he is just north of Wilmington and just inside the border about two miles from Concord Pike and Naamans Road where I operated from in July 2009. ND9M/P operated from several locations in Delaware prior to that and WD9EWK/P operated from Delaware during the AMSAT Symposium in the Fall of 2009. N3ZLL/M has operated in Delaware before and was worked via the ISS in February 2009. I am not aware of anyone else operating from Delaware over the past few years who actually lives there (until now). For those working towards their WAS, be sure to listen for WA3WUL. States that have activity now can become rare overnight. Wyoming was very common when NN6T lived there; when he moved there was no one on for some time. K7DRA became active and Wyoming was no problem. Lately I have not heard him and Wyoming is now becoming rare again. South Carolina was rare at one time. Now there are many operating from that state including the very active K4YYL. If you are working towards WAS, don't miss out on working WA3WUL if you still need Delaware. 73, John K8YSE

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AO-51 power management
by Thomas McGrane 04 May '10

04 May '10

Greetings from pat n2oeq Way to go andrew and all others involved in formulating and using the Echo power management software. A very significant improvement to utilize the available solar power. Please keep in mind, the possibility of more watts while in sushine if power management allows. I'm loosing lots of signal in the trees. I learned like others said, that the leaves really attenuate the weak signal. My sincerest thanks to all that made this big improvement possible. pat

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"High Q" CTCSS tones?
by Greg D. 04 May '10

04 May '10

Hi folks, I'm updating a small Predict client that I wrote. It's part of my station's automation for driving my Yaesu FT-736R under Linux. There's a table in the 736's manual for the various CTCSS tones, and I see there are 9 codes that are labeled "High Q". Some of the tones match others in the base table, some are unique. What are these "high Q" tones, and why would I want to use one or the other when there are duplicates? The manual tells me basically nothing, and a quick scan of the Web turned up the same. Thanks, Greg KO6TH _________________________________________________________________ The New Busy is not the old busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:…

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Field Day
by Bruce 04 May '10

04 May '10

Wondering why all the hoopla about any of the satellites being in any mode. AMSAT receives only about 15 entries for field day. The rest must be doing only demos or making the one bonus contact. With hundreds of field day stations on the air we should have way more entries. 73...bruce Sent from my iPhone

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Power management software enabled
by Andrew Glasbrenner 04 May '10

04 May '10

This evening I enabled the power management software on AO-51. If everything works right, the repeater should run at 1.01 watt while in sun, and 290 milliwatt while in eclipse and after exiting eclipse until the batteries recover to ~7.9 volts. Observations from the southern hemisphere while entering and leaving eclipse would be very helpful...we know it is getting used from the WOD files. I'll post a map where the satellite is being used soon. 73, Drew KO4MA

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Arecibo - EME day - Link to photos
by DAVID BIRD 04 May '10

04 May '10

Hello to all, It was allot of fun taking part in EME day.Listening to Arecibo was a real blast.Me and Omer ad7dy built a home made 22 element yagi and it worked OK. It did allot better once we added a preamp.Brain n7bsc took some nice photos of the antenna.Just thought I would share.Link mc-arc.org 73 de kc7uss

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GP47 Activation
by Reid Crowe 03 May '10

03 May '10

My operation from Søndre Strøm (aka Sondrestrom, aka Kangerlussuaq) GP47pa will start sometime around Wednesday, May 5th. I will be traveling to Søndre Strøm tomorrow and will hopefully not fly the next day. I plan on being there a little less than two weeks. After that I will be returning to Thule FQ56. Be sure to sign up for my email list at <http://groups.google.com/group/ox-thule-2010> if you have not already done so. I will send out notices from here with planned times of operation. Also, a big thank you to everyone that I've worked. I'm just as excited to give out these grids as you are to receive them! Remember: I will need to have cards printed up when I get home so there may be some delay in my reply. I will QSL all cards sent with SASE, IRC or Greenstamp 100% don't worry! Thanks again everyone! Get the word out to everyone you know and invite those not on the birds, or in ham radio, into your station to make a few QSOs and show them how easy it is! 73, Reid N0RC

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