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

*Possible* activity today (April 3) from Raleigh, NC Hamfest (RARSFest)
by Mark L. Hammond 03 Apr '10

03 Apr '10

Hi All, Today Robert N0QFQ and I will be hosting an AMSAT table at the Raleigh Hamfest--RARSFest. There is a possibility that we'll do a demo or two, depending on circumstances. If we are active, please listen for "N8MH portable" from FM05 during the following passes (time is UTC): 03.04.2010 AO-27 17:47 18:00 13 22 130 - 003 03.04.2010 SUNSAT (SO-3519:14 19:29 15 50 003 - 205 03.04.2010 AO-27 19:26 19:40 14 38 186 - 338 73, Mark L. Hammond [N8MH]

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HO-68 pass recording?
by Andrew Glasbrenner 03 Apr '10

03 Apr '10

Did anyone happen to grab any audio of HO-68 this pass after about 0205 UTC? 73, Drew KO4MA

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Request for a sked via FO-29
by i8cvs 02 Apr '10

02 Apr '10

Hi All, Owing of her excentricity FO-29 is actually at the apogee 1322 km over the atlantic ocean during the south bound orbits. Tomorrow april 3 during revolution 67303 I will be looking for Canada from 21:05 to 21:08 UTC and for the east coast of USA from 21:08 to 21:15 UTC If someone is interested to contact my grid JN70ES (Naples-Italy) please look for me on CW or SSB at 435.840 MHz +/- Dopppler For QSO agreements and more detailed calling procedure please write to me off line. Tanks 73" de i8CVS Domenico

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Re: Question about WISP/TNC3s/FT-847
by Nader Omer 02 Apr '10

02 Apr '10

Hello Jan & All It looks like a (ports) com conflict !! Drive the Rig and the Rotor by any old PC! and use a fast PC for WiSP. 73's Nader

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Delfi-C3 Close approach warning
by wouter weggelaar 02 Apr '10

02 Apr '10

Hi All, While Delfi-C3 is rapidly approaching her second birthday on 28th of April, the team got a warning from The United States Joint Space Operations Center about a close approach of COSMOS debris and Delfi-C3. Today at 14:49 UTC the two objects will approach each other almost heads on with a difference velocity of 15km/s (yes, kilometers a second!). Fortunately, the predicted distance between the objects will be 492m, so they will miss each other. Although these close approach warnings were given to other satellites as well, and the chance that something really happens is very small, we would like to encourage people to listen for Delfi-C3 and send in telemetry. Please have a look at the mission operations page at http://www.delfic3.nl/index.php?option=com_content&task=view&id=93&Itemid=1… for frequency info and the latest RASCAL downoad. **PLEASE NOTE** Due to Delfi-C3s habit of sometimes switching off from science mode, you might hear nothing while Delfi-C3 is fine. Don't panic! but please do listen the orbits after and post your findings on http://oscar.dcarr.org Thanks on behalf of the Delfi-C3 team, Wouter Weggelaar PA3WEG Delfi-C3 Mission Operations

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FS Complete satellite station.
by Dave Aitch 02 Apr '10

02 Apr '10

I will be un-subscribing from this list on the 4th April. Any further replies regarding the items I have for sale should got to daveocn(a)googlemail.com please. Cheers, Dave. G1OCN. AMSAT UK 5766

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Re: Arrow and EME?
by Oscar Diez 02 Apr '10

02 Apr '10

Hi folks, I think it should be possible to work at least the three big guns out there: W5UN, KB8RQ and RN6BN. With their huge antenna arrays they can hear very low power EME stations. 100-150W into the arrow should work theoretically with those three stations if moon condx are favourable. The best thing is to hang around in the JT65 EME chat under this address: http://www.chris.org/cgi-bin/jt65emeA Usually you only need to wait there till the big guns announce a CQ call there with their used frequency. You can then also take the advantage of realtime communication via this website to arrange a sked in realtime with them and they will keep their ears open for you, hi The "QRPp EME record" so far for RN6BN by the way was working LZ1BB using a 4el. DK7ZB yagi with only 40W into antenna....thus Arrow should work also when power over 100W is used. I can occasionally work down to 8 yagi stations in JT65B mode using a 6el. DK7ZB Yagi and about 130W into Antenna (160W Brick-AMP minus cable loss) For example I worked EA6VQ on Mallorca Island with his 8x17el. M2 array with my relatively small antenna. I can sometimes decode down to 2 yagi high power stations on JT65B RX mode if moon condx are good...but 2-way QSO is not possible with those small counterparts. Here some links from other EME QRPers: http://www.ok2kkw.com/00000104/eme.htm (used 4el. yagi And 100W) http://www.dj7al.de/12906.html (used 4el. F9FT yagi and 200W) http://www.dj7al.de/11026.html (same station testing only HB9CV 2el. and 200W) And here is a nice tutorial to get started in JT65B mode EME operations: http://www.vhfdx.net/jt65bintro.html Best 73 de Oscar DJ0MY

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XE2BSS @ DM30 update - 2 April
by Patrick STODDARD 02 Apr '10

02 Apr '10

Hi! After some equipment issues, Alex XE2BSS was able to get on a weatern AO27 pass yesterday afternoon and work a few stations. He plans to try AO27 and SO50 today and possibly Saturday, before returning home to California. Alex also mentioned his location is grid DM30wr. His station is a full-duplex-capable IC-Z1 and an Elk log periodic. Good luck and 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/

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New APRS Rocket Antenna concept needed
by Robert Bruninga 02 Apr '10

02 Apr '10

I need someone interested in adding quadrature 2 meter antennas to the outside of a 10" diameter sounding rocket by middle May... This launch is going to space (100 miles up) from White Sands on a sounding rocket to then come back down by parachute. Antennas cannot stick out far (maybe an inch?) but can be bent back along the surface. Temperatures will approach 800F during the 10 minute flight. G' forces will be huge. The payload will be (what else) an APRS trackign system and 2-way APRS communications transponder. So, if anyone wants to take on this antenna, lemme know. All I need is the detail design and analysis. The machining is paid-for. Oh, it also needs quadrature GPS antennas, but that can just be a pair of 1.5" monopoles... Bob, WB4APR

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FM on VO-52
by Håkan H 02 Apr '10

02 Apr '10

Hello! It is the firsth of April but i was very surprised to hear a russian station on VO52 with downlink in FM?? is this something new or have i missed something? It was a callsign and clearly a call via satellite. downlink on 145.925mhz. 73 Hakan SM7WSJ

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