May 2012 - AMSAT-BB - mailman.amsat.org

RAX-2 keps
by Alan Beck 30 May '12

30 May '12

Where do I find RAX-2 keps? Alan VY2WU

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appreciation to the list
by Alan Beck 30 May '12

30 May '12

I appreciate having all of your help in all thing amsat as I try to not blunder across this aspect of the hobby. It is very nice to have the help 73, Alan VY2WU

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Re: First Satellite QSO + Thank You to all!!!
by James Luhn 29 May '12

29 May '12

Congratulations Steve, W5IEM, on your first satellite contact. I will never forget my first one. It was more exciting than my first novice contact when I was 11 years old! You will soon find out just how addictive satellites can be. Welcome aboard! I would like to pass on my "Thank You" to everyone at the AMSAT booth. I worked in the booth on both Friday and Saturday. It was so nice to put a face on the many I have worked through a satellite. This was my first time to work in an AMSAT booth. Everyone made me feel so much at home. The hospitality that I was shown was very much appreciated. The time just went way too fast. The banquet was terrific too. Learning about the Fun Cube Dongle was a special treat. A big Thank You to everyone involved for making my first trip to Dayton a special one. A Thank You also goes out to Martha for making my reservations at a really nice hotel. Like satellites, I believe Dayton may be habit forming! I have been an active Ham for 50+ years and I am still learning new tricks and developing "good" habits. 73, -james W5AOO

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Re: EggBeater
by Bill Dzurilla 29 May '12

29 May '12

Steve, I have both a commercial and a homebrew Eggbeater and am disappointed with both, especially in light of its rather high price. Connected to my IC-7000 via an ARR mast-mounted preamp, performance is far less than with an HT and an Arrow. Guess an omni can't cut it, at least not from my QTH. Maybe if I could get it up higher, clear of all roofs, it would do better. I can make contacts at relatively high sat elevations, but can do just as well with a $10 dual band ground plane. My friend has an Eggbeater and the same preamp at a clearer QTH, and he hears substantially better, down to 10 degrees elevation in some directions. Good luck and 73, Bill NZ5N > > Hi Steve, > > > > It is surprising to read that you are not hearing > anything. I have > > repeatedly used a 2m and 70cm Eggbeater for the sats > and have had no > > problem hearing things. No pre-amp. > > > > I was using a short cable (e.g. less than 10 meters). > The rigs I > > used were a FT-736r (deaf) and a FT-847 (so-so). > > > > 73, > > > > Dave

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Pictures Of Dream Catcher Test
by B J 29 May '12

29 May '12

http://www.nasaspaceflight.com/2012/05/snc-captive-carry-test-dream-chaser-… 73s Bernhard VA6BMJ @ DO33FL

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Dragon Docking Pictures
by B J 29 May '12

29 May '12

http://www.onorbit.com/node/4671 73s Bernhard VA6BMJ @ DO33FL

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SpaceX Re-Entry Live TV Coverage
by Clint Bradford 29 May '12

29 May '12

MEDIA ADVISORY: M12-098 NASA TV COVERAGE FOR SPACEX DRAGON REENTRY AND SPLASHDOWN HOUSTON -- NASA Television will provide extensive coverage of the departure of the SpaceX Dragon capsule from the International Space Station before its reentry and splashdown on May 31. On Wednesday, May 30, a news briefing previewing the departure activities will be held at NASA's Johnson Space Center in Houston at 9 a.m. CDT (10 a.m. EDT) and will be broadcast live on NASA TV and the agency's website. Participants include NASA Flight Director Holly Ridings and SpaceX Mission Manager John Couluris. On Thursday, May 31, NASA TV will begin live coverage of the departure of Dragon at 2:30 a.m. CDT (3:30 a.m. EDT). Coverage will continue through the release of Dragon from the station, currently scheduled for 5:10 a.m. CDT (6:10 a.m. EDT) and will resume at 9:15 a.m. CDT (10:15 a.m. EDT) with deorbit and splashdown coverage. The capsule is currently scheduled to splashdown in the Pacific Ocean at 10:44 a.m. CDT (11:44 a.m. EDT) hundreds of miles off the west coast of California likely out of range of live television. A news briefing will be held jointly from Johnson and SpaceX in Hawthorne, Calif., at 1 p.m. CDT (2 p.m. EDT) live on NASA TV. Media representatives can participate in person at Johnson or via telephone by calling 281-483-5111 at least 15 minutes before each briefing. Media badges from Dragon launch activities at NASA's Kennedy Space Center in Florida will be honored at Johnson through splashdown. For NASA TV downlink information, schedules and links to streaming video, visit: http://www.nasa.gov/ntv For up-to-date information about the SpaceX mission, visit: http://www.nasa.gov/spacex -end-

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Re: EggBeater
by Samudra Haque 29 May '12

29 May '12

Yes, I considered LMR-400 and above, but due to the rigid bending limits of those cables, I went down the scale to LMR-240 for this first install, the cable is almost as flexible as RG-58/59 etc. ... On Tue, May 29, 2012 at 4:55 PM, Kevin Deane <summit496(a)live.com> wrote: > *Hello, figured I would give my two cents... I have gotten in with many > antennas and many radios. They say five watts is all you need with a > directional ant. I have worked AO-27 with a hustler mag mount and a FT7900, > only for a short time of course because it is not getting into the bird > that matters, it is hearing it.* > ** > *Whatever you use for receive make sure you have the best coax or > something like 9913, or lmr 400, because I found out the hard way that the > DB loss in bad or cheap coax will kill you bigtime. I have not tried an > eggbeater, but have tried the log periodic, and yagis. Like I said the > verticals, mag mount and base ant, work for closer passes for a few minutes. > * > ** > *If you can do full duplex that is the best way for sure, as you can hear > yourself and not cause Qrm. Probly was not much help here but I have heard > people have had great success with the egbeater. Maybe add a preamp at the > receive ant mast...* > ** > *Anyway good luck, and remember if you cant hear people clearly dont > bother to transmit, everyone gets all bent out of shape. > > * > > *Kevin* > *KF7MYK* > > > > > From: samudra.haque(a)gmail.com > > Date: Tue, 29 May 2012 16:17:48 -0400 > > To: kl7uw(a)acsalaska.net > > CC: amsat-bb(a)amsat.org > > Subject: [amsat-bb] Re: EggBeater > > > > Hello, can I ask a question related to this several-years old thread? At > > George Washington University, this fall we will be on the air and are > > buliding up an amateur radio club ground station from scratch. Currently > we > > are collecting equipment, cables, etc., while we wait for the > construction > > to begin on a new door in the interior of a third floor class room space > to > > let us use that area as a "radio room" or something like that. At my home > > QTH, I'm testing out the radios we can use, and would like to both > receive > > and transmit - with omni antennas (e.g., eggbeaters, QHA ) and later > AZ-El > > yagis. > > > > Assuming an LNA is used at the antenna for the RX path, would it be > > practical to use that same omni for uplink? What are the recommended > power > > settings for such an uplink for any of the recent amsats? > > > > If there was a constraint (for the summer into fall) of operating in a > > limited visibility area, and approximately 50 sq. ft of open access > (i.e., > > 21 ft monopole mast with open free area about 4 ft dia.) would that be > > adequate for any sort of uplink antenna? The good thing is that the > > ultimate location of the club station antenna farm is huge, but for now > > this is what we have. I'm open to AZ-El positioners but the mast loading > > limit is pretty small for now. > > > > Any suggestion welcome. > > > > Regards, > > > > Samudra N3RDX > > > > On Thu, Apr 16, 2009 at 9:50 PM, Edward Cole <kl7uw(a)acsalaska.net> > wrote: > > > > > Drew, > > > > > > Thanks for the document on this antenna. I was going to try resizing > > > the 2m Lindenblad design of Tony's but this will be a snap for me. I > > > have 1/8-inch rod elements from an old Cushcraft yagi that > > > disintegrated long ago and have some 1/2-inch sched-40 aluminum pipe > > > (7/8 inch OD) that will work fine for the vertical. I can get the > > > PVC from my local building supply. Only need to order ferrites from > > > Mouser. Since I will place a 432 preamp at the antenna a short run > > > of RG-58 or mini-8 will suffice. I probably will make some variation > > > in the materials used. I did that on the 2m Lindenblad (not assembled, > > > yet). > > > > > > 73, Ed - KL7UW > > > > > > At 08:02 AM 4/16/2009, Andrew Glasbrenner wrote: > > > >Consider trying AA2TX's excellent parasitic lindenblad design. Unlike > the > > > >overpriced eggbeater, it puts the gain on the horizon where it is > needed, > > > >and is circular across the pattern. The parts mostly are from your > local > > > >hardware store, and in Tony's typical fashion, it is simple to > assemble > > > and > > > >works well. > > > > > > > >73, Drew KO4MA > > > > > > > >----- Original Message ----- > > > >From: "Bill Dzurilla" <billdz.geo(a)yahoo.com> > > > >To: <amsat-bb(a)amsat.org> > > > >Sent: Thursday, April 16, 2009 11:56 AM > > > >Subject: [amsat-bb] Re: EggBeater > > > > > > > > > > > > > > > > > > Steve, > > > > > > > > > > I have both a commercial and a homebrew Eggbeater and am > disappointed > > > with > > > > > both, especially in light of its rather high price. Connected to my > > > > > IC-7000 via an ARR mast-mounted preamp, performance is far less > than > > > with > > > > > an HT and an Arrow. Guess an omni can't cut it, at least not from > my > > > QTH. > > > > > > > > > > Maybe if I could get it up higher, clear of all roofs, it would do > > > better. > > > > > I can make contacts at relatively high sat elevations, but can do > just > > > as > > > > > well with a $10 dual band ground plane. My friend has an Eggbeater > and > > > > > the same preamp at a clearer QTH, and he hears substantially > better, > > > down > > > > > to 10 degrees elevation in some directions. > > > > > > > > > > Good luck and 73, > > > > > Bill NZ5N > > > > > > > > > >> > Hi Steve, > > > > >> > > > > > >> > It is surprising to read that you are not hearing > > > > >> anything. I have > > > > >> > repeatedly used a 2m and 70cm Eggbeater for the sats > > > > >> and have had no > > > > >> > problem hearing things. No pre-amp. > > > > >> > > > > > >> > I was using a short cable (e.g. less than 10 meters). > > > > >> The rigs I > > > > >> > used were a FT-736r (deaf) and a FT-847 (so-so). > > > > >> > > > > > >> > 73, > > > > >> > > > > > >> > Dave > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > > > author. > > > > > Not an AMSAT-NA member? Join now to support the amateur satellite > > > program! > > > > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > > > >_______________________________________________ > > > >Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > > > >Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > > >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > > _______________________________________________ > > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the > author. > > > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > _______________________________________________ > > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. > > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb >

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9600 birds
by Alan Beck 29 May '12

29 May '12

Would anyone be able to suggest a good 9600 bird I could use for testing? Something that stays on for a whole pass? 73, Alan VY2WU

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First Satellite QSO
by Steve May 29 May '12

29 May '12

I want to give a huge "Thank You" to all of the guys at the Dayton Hamvention for the information they shared at the AMSAT booth and the demonstrations. After a few unsuccessful tries I made my first QSO on SO-50 about 10 minutes ago. I only made one contact tonight, that being KC9TTR in Indiana, but I know that the first one is the hardest. I am thrilled right now, and I know that learning what I learned in Dayton put me ahead many, many hours. Thanks again, -- Steve May, W5IEM Amateur Extra - Georgetown, KY (520) 261-7847 - Cell Skype: USHorseman Steve.W5IEM(a)gmail.com *This message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any retention, dissemination, distribution, or copying the communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately and delete the email along with any and all attachments from your system*

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