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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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
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
Please have a look at the mission operations page at
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
Thanks on behalf of the Delfi-C3 team,
Delfi-C3 Mission Operations
I need someone interested in adding quadrature 2 meter antennas
to the outside of a 10" diameter sounding rocket by middle
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...
The AO7 pass this morning was very difficult. I am experiencing locally heavy QRN on 2m. I had one email from an XE station that suggested troposcatter could have been affecting my receive as there was 2m propagation from HI to Baja at the time. Very possible. At the low angles that I am working, it would not surprise me. Any other theories?
I was on several other passes FO-29 and VU-52 passes this AM and only worked a couple of stations. I heard one W6 station this morning's pass I had a rough time copying you. Drop me a note if you get this email. Sure wish to see more activity on the linear satellites.
Here is what I plan for this afternoon (HI):
FO-29 @ 03:34 UTC
FO-29 @ 05:16 UTC I can only work AOS to TCA then I have building blockage.
VU-52 @ 06:50 UTC
FO-29 @ 07:02 UTC. I am still looking for JA's. I know some of you are still at work but please spread the word locally to others who can be on the air from JA. The opportunity to work KH6 is getting very small.
No plans for SO-50 or AO-27 at this time as the schedule is not ideal and there are local KH6 stations that can provide contacts on those satellites as previously indicated.
HO-68 19:28 UTC SSB (center of band SSB only) I will make an effort to get on. Hopefully no gremlins this time.
Full schedule to be announced.
I know many are chomping at the bit for HO-68 on FM and it looks like this will be my last opportunity to work this mode.
Will try to make it. Again wind and weather conditions permitting:
HO-68 18:55 UTC.
All for now. I am going sightseeing and work on grabbing some vacation time.
Aloha, 73 Adrian AA5UK/KH6