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

Packet on AO-27
by Tom 14 May '10

14 May '10

At the end of the AO-27 pass at about 2023 UTC today I heard a strong packet signal on the downlink. It lasted for about 30 seconds and wiped out the end of the pass for me. I think I've heard that before but can't remember if it was on AO-27. Is this just someone creating QRM or is the packet signal there for a reason? Tom - KØTW

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Sprcial Event
by Peter Portanova 14 May '10

14 May '10

Hello, I will be on AO-27 on May, 15th only, at 17:55 UTC using the special call sign, W2GSB/APM, I look forward to working many stations, thank you. On May 15th & 16, in honor of Armed Forces Day, the Great South Bay ARC, will set up portable HF/VHF/ Satellite operations at the American Airpower Museum, http://www.americanairpowermuseum.com/Website/Index.aspx located at Republic Airport in Farmingdale, NY., FN30, using the call W2GSB/APM, a special QSL card will be sent, for QSL information visit www.gsbarc.org. The club will be on HF from 11 AM until 4 PM each day. 73's Pete WB2OQQ www.massapequanyweather.com

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WD9EWK @ IN/OH state line, AO7 & FO29 1100-1135 UTC
by Patrick STODDARD 14 May '10

14 May '10

Hi! After flying into Columbus and driving to Dayton last night, sleep was in short supply. I woke up very early, and drove west of Dayton on I-70 to the Indiana/Ohio state line. I just worked an FO29 pass, and will work the next FO29 pass at 1100 UTC followed by AO7 once FO29 is out of range around 1118 UTC. The grid for this spot is EM79ot, in the parking lot of a fireworks shop on the south side of US-40 east of the I-70/US-40 interchange. After these passes, it s back to Dayton for the HamVention. :-) 73! Patrick WD9EWK/VA7EWK - Indiana/Ohio state line. near Richmond IN http://www.wd9ewk.net/

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Re: Anyone using Gpredict with an IC-910h?
by Ryan Caron 14 May '10

14 May '10

I have the IC-910H doppler working w/ gpredict just fine using a eBay CI-V cable. I have the radio's baud rate set to automatic but the cable itself only seems able to support 4800 baud (no lower, no higher). Works great at 1 second updates even for LEO birds. On 5/13/10 12:00 PM, amsat-bb-request(a)amsat.org wrote: > Message: 9 > Date: Thu, 13 May 2010 09:47:42 -0700 (PDT) > From: Elan Portnoy<elanportnoy(a)yahoo.com> > Subject: [amsat-bb] Anyone using Gpredict with an IC-910h? > To:[email protected] > Message-ID:<560838.81850.qm(a)web82306.mail.mud.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > I've got the rotator tracking (Fox Delta + G5400) but having trouble with the rig freq control for uplink& downlink Doppler correction. > > Anyone have any suggestions? > > > > Dell GX270 > > IC-910H > > Gpredict on Ubuntu Linux > > Onboard serial ports @ 19200 > > Fox Delta STS-2 (?? I think, maybe 3) > > Funny looking antennas on a nasty 25' stick which spins around and is attached to the porch. > > 73, > Elan - WB2IOL > >

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Hitting a southbound Moon
by Greg D. 13 May '10

13 May '10

Hi folks, Now that the Arecibo event is behind us, there is still one puzzle that I'd like someone to explain to me. How do I aim at the Moon? I'm on the US West Coast. Early in the pass on Saturday, both Predict and Orbitron told me that the Moon's azimuth from here should be slightly north of east. It was in the 80-ish degree range, with east, of course, being 90. But looking at Orbitron's map display, the Moon was clearly south of my latitude. As the pass progressed, the Moon moved westward on the map, making a sharper angle to the south of east from here. Both Predict and Orbitron's Az calculation increased too (eventually crossing 90 degrees), but always seemed to be north of where the Moon was. Why would I aim north to hit a southbound Moon? Greg KO6TH _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail. http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28…

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Atlantis launch at Dayton?
by Bill ONeil 13 May '10

13 May '10

Anybody going to setup NASA TV at Dayton? Bill KW8KW

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Dayton SDR Forum speaker list, times
by Robert McGwier 13 May '10

13 May '10

Dayton SDR Forum is exciting this year. 4/5 of the talks are about HPSDR-related and that is good with a great list of speakers. Friday, 2:30-5 PM Gerald Youngblood, Flex updates 2:30 Lyle Johnson, Embedded Processors for SDR 3:00 John Melton, SDR GUI 3:30 Scott Cowling, HPSDR update 4:00 Jeremy McDermond, MacHPSDR 4:30 Bob McGwier N4HY

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S band cavity filter test
by Luc Leblanc 13 May '10

13 May '10

With AO-51 in mode V/S i start to test a wave guide filter model ITS 1653C made by ITS corporation Mc Murry PA. The wave guide centered on 2401Mhz with a band pass covering 2400 to 2402Mhz with a very low insertion loss. The first test made on my last AO-51 pass confirm all the qrm out of the passband if effectively reduced a lot. More test will be needed to confirm if the filter effectively help my AIDC downconverter reception P.S. when i dismantle the antenna coax from the AIDC connector i saw the N female connector full of white rust. Even with a carefull taping only the antenna connector show this type of corosion. I suspect the N male adaptor and the is made of a different alloy than the AIDC N connector. After one year at the top of the tower the corrosion take his toll and it will a good thing to check your AIDC downconverter connector condition. I don't know how i was able to hear on 2401mhx with a so white powder rusted connector? "-" Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE

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ao 51 V/S
by Dale Hershberger 13 May '10

13 May '10

Hello....... I heard some QSOs on S band on the last pass...I have had to repair my connection to the dish to receive the down link signal. I was successful to hear some signals from the L48. I could not make out the call signs but it is encouraging.. I will keep on trying. W7LRD,.Bob.. I will be looking for you. 73, Dale KL7XJ

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Office
by Martha 12 May '10

12 May '10

The AMSAT Office will be closed through Monday, May 17th. I will be attending the Dayton Hamvention. -- 73- Martha

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