AMSAT-BB August 2009

217 participants
344 discussions

Call for Papers--2007 ARRL/TAPR Digital Communications Conference

by Ford, Steve, WB8IMY

Technical papers are solicited for presentation at the 26th Annual ARRL and TAPR Digital Communications Conference to be held September 28-30, 2007 in Hartford, Connecticut. These papers will also be published in the Conference Proceedings (you do NOT need to attend the conference to have your paper included in the Proceedings). The submission deadline is July 31, 2007. Please send papers to: Maty Weinberg ARRL 225 Main St Newington, CT 06111 or you can make your submission via e-mail to: maty(a)arrl.org Papers will be published exactly as submitted and authors will retain all rights. 73 . . . Steve, WB8IMY ARRL

9 years, 11 months

Re: EggBeater

by Bill Dzurilla

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

10 years

FW: Re: The Moon is our Future

by Dave

We have met the enemy and they are us. WE need to do something. Yes, $15m is outta reach, but isn't there a cash prize for the first on-commercial moon landing? Dave DM78qd // KA0SWT If it weren't for Philo T. Farnsworth, inventor of television, we'd still be eating frozen radio dinners.-- Johnny Carson +++++++++++++++++++++++++++++++++++++ -----Original Message----- From: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] On Behalf Of Jeff Davis Sent: Thursday, July 02, 2009 9:35 AM To: amsat-bb(a)amsat.org Subject: [amsat-bb] Re: The Moon is our Future On Thu, Jul 02, 2009 at 06:48:51AM -0600, Jack K. wrote: > communications anyway) and move forward... We can put up all the leos > we want, but until someone makes something like B. Bruninga's cell > concept work, we are only going to have more of the same, We don't > need more of the same! I couldn't agree more - we don't need more of the same. If I want to sit back and have a two hour rag-chew with someone on the other side of the planet I will use Skype or my cell phone! Dreaming about what *might* be in space is a fun exercise. Actually doing something about it requires sending things to LEO because reality has dictated that's as far as we can afford to go. How's about we use some of that frustrated *imagineering* to come up with interesting new concepts at LEO? We don't need any more FM repeaters buzzing overhead, but what about more cameras downloading HD images, scientific payloads that monitor the ongoing climate change, payloads to study the Earth's magnetic field, etc. etc. Our own 'Twitter' messaging network from space...? The Apollo 13 creed of "failure is not an option" has completely infected the brains at AMSAT and this list. You want something at HEO or on the moon, cut a check for $15 million dollars and let's get on with it. Been waiting since 1996 for another AO-13 and I am getting too old to keep waiting. AMSAT is becoming completely irrelevant as it strives without success for the impossible mission and exhibits a shocking amount of leadership malfesance as it stubbornly refuses to recognize and adapt to realities in the launch business. I know, I know maybe NEXT year someone rich will die and leave us a boatload of cash. Or the bankrupt US government will suddenly cough up a billion dollars for some orbiting emergency communication system. In the meantime we have to stifle the truth because it might blow yet another *secret* deal that's in the works and *almost* a done deal, so let's not complain publicly and ruin it. Heard the stories, heard the lies, got all the t-shirts and ball caps. Whatever. -- Jeff, KE9V AMSAT-NA member since 1994, Skeptic that we will ever go back to HEO since 2002 _______________________________________________ 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

11 years, 3 months

Re: true duplex radios

by clintbrad4d＠earthlink.net

But the ability to crossband repeat doesn't automatically mean that a radio can monitor a satellite's downlink while transmitting to it .... -----Original Message----- From: "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> Subj: Re: [amsat-bb] Re: true duplex radios Date: Mon Jun 1, 2009 12:55 pm Size: 467 bytes To: "Clint Bradford" <clintbrad4d(a)earthlink.net>,<amsat-bb(a)amsat.org> > Really? Dual-receive, indeed. And will perform crossband repeating. > But I can transmit on one band and simultaneously hear myself on > another with a FT-8800? How else would it be able to cross band repeat? Page three of the manual: "Featuring 1054 memory channels (527 channels each for "Main" and "Sub" band), full duplex operation with independent Volume and Squelch controls, and built-in CTCSS and DCS encoder/decoder circuits, ..." 73, Drew KO4MA

12 years, 9 months

1.2 ghz antenna?

by Norman W Osborne

Hello to all, After reading some of the postings on the bbs discussing AO-51 1.2 ghz mode, I am wondering what antennas are being used, commercial and homebrew. 73, Norman

12 years, 9 months

Office Closed

by Martha

The AMSAT Office will be closed from Sept 1 - Sept 9th. I am going to the beach!! -- 73- Martha

12 years, 9 months

L/U report

by Andrew Glasbrenner

We had quite the crowd tonight on L/U. I heard and worked K8YSE, KG4ZLB, KC9ELU, K4YYL, WO3T, WB8OTH, KD8CAO, and N8MH. Counting myself that makes nine on one pass, 10 if we count the radar operator. Can we do better before the end of the week? 73, Drew KO4MA

12 years, 9 months

iPhone / iPod touch Tracking software

by GW1FKY＠aol.com

Hi all, Further to the recent posting on the BBS about availability of " Tracking Software " for iphones. I thought that I would point out that Jim Berry also now has tracking software for the iPhone / iPod Touch. PocketSat3 is now available ( including a demo version ) from his web site _http://www.bigfattail.com_ (http://www.bigfattail.com) or _www.pocketsat.com_ (http://www.pocketsat.com) Jim's versions for PDA's such as Palm and Pocket PC have been around of course for some time now and prove to be very useful when operating portable. Some of these devices are available so cheap these days but are of course some are much very much slower than an iPod. They still do the job with prediction and tracking and have proved very use for me not only for operating but also for demonstrations on working satellites. Good luck and you will find Jim very helpful, he is also looking its use on other possible Windows mobile devices. Ken Eaton GW1FKY Amsat - UK Amsat NA Oh - I'd appreciate it if you'd point out the existence of PocketSat3 for the iPhone / iPod Touch when you're demoing. A new iPod Touch costs < $200 and blows the doors off of the Palm devices - and PocketSat3 is way cooler than PocketSat+, as well. ( www.pocketsat.com )

12 years, 9 months

UX-9100

by Fabio Roccatagliata

Hi everybody, I've noticed how the UX-9100 looks like the UX-910 just with "something more" probably for interfacing the radio with the module. I hope they really changed the module otherwise I would appreciate, since I'm quite sure the module is the same, if Icom would allow us to use the UX-910 module even if I don't think so. 73 Fabio IZ1EGT/F5VKV

12 years, 9 months

L/U band AO-51

by w7lrd＠comcast.net

Hello all you L band fans. AO-51 should be on L/U mode shortly after the 2330 pass over Drew's house. 73 Bob W7LRD

12 years, 9 months

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AMSAT-BB August 2009