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:
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
73 . . . Steve, WB8IMY
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,
> > 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
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
DM78qd // KA0SWT
If it weren't for Philo T. Farnsworth, inventor of television, we'd still be
eating frozen radio dinners.-- Johnny Carson
From: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] On
Behalf Of Jeff Davis
Sent: Thursday, July 02, 2009 9:35 AM
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
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.
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.
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But the ability to crossband repeat doesn't automatically mean that a radio can monitor a satellite's downlink while transmitting to it ....
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"
duplex operation with independent Volume and Squelch controls, and built-in
DCS encoder/decoder circuits, ..."
73, Drew KO4MA
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
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
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
Good luck and you will find Jim very helpful, he is also looking its use
on other possible Windows mobile
Amsat - UK
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 )
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.