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CX2SA > SATDIG 19.06.08 02:10l 514 Lines 17242 Bytes #999 (0) @ WW
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Sent: 080619/0017Z @:CX2SA.LAV.URY.SA #:11375 [Minas] FBB7.00e $:11375_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. 2M1EUB/P QRV SCOTLAND 28/6/08 (paul robinson)
2. AMSAT Awards (Bruce)
3. Re: Maderia Island on the AO-51 6/17 2121Z Pass (Fernando Martins)
4. Re: LEO's (Edward Cole)
5. Re: Spanish cubesat (G0MRF(AT)aol.com)
6. LEO (RFI-EMI-GUY)
7. An Observation. (John Hackett)
----------------------------------------------------------------------
Message: 1
Date: Wed, 18 Jun 2008 14:31:18 +0100 (BST)
From: paul robinson <pushbiker2004(AT)yahoo.co.uk>
Subject: [amsat-bb] 2M1EUB/P QRV SCOTLAND 28/6/08
To: amsat-bb(AT)amsat.org
Message-ID: <239912.84769.qm(AT)web23010.mail.ird.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Hi group ill be qrv once again from io87rj near aberdeen scotland from
28.06.08 for 7 days.
its not an easy location for stateside but possible,if you wish to work me
,please be quick as only a small window for USA! would also be good to work
some new calls from the states!! Europe window is ok! Ill be on all birds but
mainly ao7 ssb .i will also be 160 and 80m as well as some hf ssb! including
6m and 4m ssb ..check out the qrz web page under 2m1eub ,theres a nice photo
of the qth ,and of my dog ted.qsl is via home call 2e1eub.73 de paul
amsat uk/na member
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Message: 2
Date: Wed, 18 Jun 2008 08:45:19 -0500
From: Bruce <kk5do(AT)arrl.net>
Subject: [amsat-bb] AMSAT Awards
To: amsat-bb(AT)amsat.org
Message-ID: <4859116F.2090709(AT)arrl.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I have not posted in a month, so I have some catching up to do with the
award posting. We would like to welcome the following to the satellite
community.
They have made their first satellite contact and are now members of the
AMSAT Satellite Communicators Club.
Robert Netzband, NA2H
Piyumi Perera, VE4WPL
Keith Cutter, KD7GOP
The following have earned the AMSAT Sattelite Communications Achievement
Award
Dimitrios Pallis, SW1JGW #464
Rob Rousseau, KI4BKE #465
Rafael Valdez, Jr., XE2RV #466
The following have earned the AMSAT Robert Barbee, Jr., W4AMI Satellite
Communication Achievement Award
Rafael Valdez, Jr., XE2RV #51
To see all the awards visit http://www.amsat.org or
http://www.amsatnet.com
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Manager (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on SkyScanner Satellite Radio Network on
Galaxy-25 (AT)97? West,
Transponder 23 (12115 Vert), Symbol Rate: 22425, APID: 1794 (DVB Free To
Air)
Also streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
Latest satellite news on the ARRL Audio News
http://www.arrl.org
------------------------------
Message: 3
Date: Wed, 18 Jun 2008 12:06:55 +0100
From: "Fernando Martins" <ct2isg(AT)sapo.pt>
Subject: [amsat-bb] Re: Maderia Island on the AO-51 6/17 2121Z Pass
To: "Ben Jackson" <bbj(AT)innismir.net>, "AMSAT-BB" <amsat-bb(AT)amsat.org>
Message-ID: <000a01c8d133$6bc355c0$977ba8c0(AT)acer1b67ed821d>
Content-Type: text/plain; charset="iso-8859-1"
On 6/17 2121z it was not a station from Madeira Island but CT2ISG from
Oporto City, North of Portuga, Grid IN51qe.
I called several times and listened to someone but it was already with a very
low elevation.
73s to all
CT2ISG
Fernando
----- Original Message -----
From: Ben Jackson
To: AMSAT-BB
Sent: Wednesday, June 18, 2008 4:42 AM
Subject: [amsat-bb] Maderia Island on the AO-51 6/17 2121Z Pass
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Interesting enough that I will bring this to -bb, partially to let
others know, and partially to try to satisfy my own curiosity...
On the 2121Z east coast pass (topping out at a whopping 5 degree
elevation from my QTH) I was able to weakly copy a Maderia Island,
Portugal station calling CQ North America. We were never able to trade
grid squares, nor was I able to get 100% copy his call sign (I can only
make out CT3?G on my recording), but we did hear each other.
So, I want to let everyone on the east coast know that there are reasons
to operate very low passes of AO-51, and I'm curious if anyone might
know who the station might be that I heard? I'd love to try to try to
set up another chance and give it another go.
Also, just to show how well meager setups work: I was using FT-7800 into
a mag mount for the uplink and a FT-60 with a K5OE handi-tenna for the
downlink. All from my car sitting in my condo parking lot. :)
- --
Ben Jackson - N1WBV - New Bedford, MA
bbj <at> innismir.net - http://www.innismir.net/
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Message: 4
Date: Wed, 18 Jun 2008 06:45:46 -0800
From: Edward Cole <kl7uw(AT)acsalaska.net>
Subject: [amsat-bb] Re: LEO's
To: "i8cvs" <domenico.i8cvs(AT)tin.it>, "kc6uqh" <kc6uqh(AT)cox.net>, "John
Geiger" <aa5jg(AT)lcisp.com>, "AMSAT-BB" <amsat-bb(AT)amsat.org>,
<w0dxz(AT)aol.com>
Message-ID: <200806181445.m5IEjlSS039083(AT)malik.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Interesting link to P3E. Obvioulsy written in early 2007 and talks
about P3E launch in mid-2007. This is the only link I have seen that
offers muli-lingual translation. All other P3E pages are in
German. Has anyone found any info more up to date? I believe this
is how this topic got its start...wanting P3E info!
Domenico states the situation, well, I think. Any who actually
experienced working AO-10/13/40 know that it does not take a
complicated station. It does take a SSB station and gain-type
antennas vs. a dua-band HT with omni or Arrow antenna. For other
than mode-UV (what was called mode-B)(i.e. mode-VS, LS, and up) Leos
are difficult to work due to high-rate Doppler change. This is where
computer-control of the radio is useful (maybe
manditory). Auto-tracking makes operating with gain-antennas on Leos
less stressful. But none of these were needed for operating
AO-10/13/40. I think those who added these features did so as a
technical asset or for the enjoyment of the project.
My old AO-40 antenna system will be restored sometime this summer and
I may get around to installing auto-tuning/tracking. Then I may show
up on AO-7 occasionally when the Moon is too low to work.
73 Ed - KL7UW
At 01:46 AM 6/18/2008, i8cvs wrote:
>Hi Art, KC6UQH
>
>You are correct 100% because the HEO AO40 was very easy to work
>using any old TX capable to run about 50 to 100 watt into 70 cm CW and SSB
>
>A 3 to 4 foot dish with a 2400/144 MHz downconverter in the focal point and
>connected to any old 144 MHz CW/SSB receiver mounted on the balcony was
>sufficient to receive a nice downlink from all over the world by many users
>at the same time for many hours every day.
>
>No complicated TX/RX radios and special software was necessary to compensate
>for doppler just made by hand.
>
>In my opinion from the operational point of view and communication
>efficiency the LEO FM satellites belong to the OCEA i.e. the "Office
>Complicating Easy Affair ".
>
>Unfortunately the young radio hams cannot understand what you writes because
>they were not fortunate enought to start their satellite experience with
>OSCAR-10 OSCAR-13 and the beautiful AO40 and this is why they are happy with
>the existing FM birds.
>
>Pulling for P3E...
>
>http://www.p3e-satellite.org/index.pl?step=pixelliste
>
>73" de
>
>i8CVS Domenico
>
>
>----- Original Message -----
>From: "kc6uqh" <kc6uqh(AT)cox.net>
>To: "John Geiger" <aa5jg(AT)lcisp.com>; <amsat-bb(AT)AMSAT.Org>;
<w0dxz(AT)aol.com>
>Sent: Wednesday, June 18, 2008 7:36 AM
>Subject: [amsat-bb] Re: LEO's
>
>
> > >From my perspective HEO's are much easier to work. The doppler and the
> > antenna pointing go much slower. With a home brew antennas including a 10
> > turn helix on a 6' stepladder I worked stations from UK to Japan and all
> > parts in between on AO40. I used old radios and homebrew converters
> > including a modified LNB.
> >
> > A minmal setupI hung a 2M ht on a drop tap to read the signal strength of
> > the beacon. Adjusted the PrimeStar dish for strongest signal and eyeballed
> > the helix to be in line with the dish. I had many QSO's and one of the
> > better signals on the bird.
> >
> > You can't have a 20 minute QSO on a LEO.
> > Unless you have a computer controled station, you are spending most of
>your
> > time making adjustments. This leaves little time to learn and the best
>part
> > of it is the panic only lasts for 15 minutes.
> > The overhead part of the pass is crazy!
> > FM makes the doppler easy to handle, but any antenna with more than 6 dB
>of
> > gain becomes a pointing nightmere.
> > Art,
> > KC6UQH
> >
> > ----- Original Message -----
> > From: "John Geiger" <aa5jg(AT)lcisp.com>
> > To: <amsat-bb(AT)amsat.org>; <w0dxz(AT)aol.com>
> > Sent: Tuesday, June 17, 2008 8:22 AM
> > Subject: [amsat-bb] Re: LEO's
> >
> >
> > > Hi Bob,
> > >
> > > I agree completely with what you say. Many people who don't think they
> > > have
> > > the equipment for the satellites really do-like a dualband FM rig and a
> > > small yagi. I wouldn't be on the sats either if I hadn't started on the
> > > FM
> > > sats and found out how easy using them was. Had a nice AO51 pass a few
> > > minutes ago also.
> > >
> > > 73s John AA5JG
> > >
> > > ----- Original Message -----
> > > From: <w0dxz(AT)aol.com>
> > > To: <amsat-bb(AT)AMSAT.Org>
> > > Sent: Tuesday, June 17, 2008 11:32 AM
> > > Subject: [amsat-bb] LEO's
> > >
> > >
> > >> RE:? Usefullness of LEO's...
> > >>
> > >> I think there should always be at least one accessable LEO-FM bird...
>for
> > > the very reason that some (WB6LLO) think there should not be. It gets
>you
> > > started with satellites.
> > >>
> > >> If I had not gone to a hamfest and seen Patrick demo use of the FM
>birds,
> > > I would not now be active on not only FM birds, but? the all mode birds
>as
> > > well. Without the FM birds, the? imtimidation factor would have been too
> > > much, I never would have gotten started.
> > >>
> > >> Every hobby needs an easy entry level possibility... for many it is the
> > > LEO's, FM.
> > >>
> > >> When I bought my first Harley, a Sportster,,, many said oh, a beginners
> > > Harley, yeah, maybe, but I would never have? bought a motorcycle? if I
>had
> > > to buy a full dresser as my first bike.? And yes, my first gun was a
>.410,
> > > not a 12 gauge.? And I learned to snorkel before I learned to SCUBA.
> > >>
> > >> FM LEO's have a purpose, a use. Not everyone can? chase the other
>birds.
> > > Live and let live. That is the fun part of the ham radio hobbyt, there
>is
> > > something for everyone.
> > >> There may be complaints about LEO-FM birds that are justifiable, but?
>the
> > > fact that you can work one with a HT is not one of those arguments.
> > >> Bob W0DXZ DM33
>
>
>
>
>
>
>
>
>
>
>
>
>_______________________________________________
>Sent via AMSAT-BB(AT)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
------------------------------
Message: 5
Date: Wed, 18 Jun 2008 11:58:02 EDT
From: G0MRF(AT)aol.com
Subject: [amsat-bb] Re: Spanish cubesat
To: amsat-bb(AT)amsat.org
Message-ID: <d46.28215cf3.358a8a8a(AT)aol.com>
Content-Type: text/plain; charset="US-ASCII"
Hi all.
I've seen several posts on the BB in response to the Spanish Cubesat teams
request for suggestions for communications payloads. Some have said.....A
linear transponder....but you probably wont have the power for that.
But. Looking at the ESA page for the cubesats, it appears our friends from
Spain have a deployable solar array planned. In which case, there may be
slightly more power than anticipated.
"Xatcobeo (a collaboration of the University of Vigo and INTA, Spain): a
mission to demonstrate software-defined radio and solar panel deployment; "
73
David
------------------------------
Message: 6
Date: Wed, 18 Jun 2008 13:16:41 -0400
From: RFI-EMI-GUY <Rhyolite(AT)nettally.com>
Subject: [amsat-bb] LEO
To: amsat-bb(AT)amsat.org
Message-ID: <485942F9.50508(AT)NETTALLY.COM>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I can't agree more, I can't wait to hear the complaints about D-Star
experiments from these folks. Instead of heterodyne, it will be dead air! Its
just an experiment folks!
Date: Tue, 17 Jun 2008 17:11:09 -0400
From: "Jim Danehy" <jdanehy(AT)cinci.rr.com>
Subject: [amsat-bb] LEO
To: <amsat-bb(AT)amsat.org>
Message-ID: <70E4A3CC414A4FE9A70E7681904AAE8D(AT)JamesPC>
Content-Type: text/plain; charset="iso-8859-1"
I am perplexed why some have to be critical of another person's interest.
I am a QRQ CW operator. If you do not like CW that is OK. I do. We will
probably not work on that mode if you don't like it. I cut my teeth on Oscar 6
and dropped out of satellites in about 1982. I have not yet tried an FM bird.
I am working to get back on LEOs on CW. I will probably do SSB too. I hope
to be on soon.
There is a saying that if it isn't CW it is just CB. I look forward to
HEO but until then it is LEO.
--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"?
"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."
"Follow The Money" ;-P
------------------------------
Message: 7
Date: Wed, 18 Jun 2008 18:49:16 +0200
From: John Hackett <archie.hackett(AT)hotmail.com>
Subject: [amsat-bb] An Observation.
To: "Eu-amsat(AT)yahoogroups.com" <eu-amsat(AT)yahoogroups.com>
Cc: allan_gm1sxx(AT)hotmail.com, amsat-bb(AT)amsat.org
Message-ID: <BLU149-W2552E03E4CECB52F6D122091AB0(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
An interesting post on the Amsat-BB from KC6UQH - whom stated ... and I tend
to agree ... HEO's are generally *EASIER* to work than LEO's.
That one needs expensive equipment to work an HEO is a myth that is simply
*NOT* true. - (try telling GM1SXX it's expensive) - it's his pet niggle.
Personally, I've worked the world on HEO's using an FT-290 and an FT-790,
both of which are 20 years old and purchased used on Ebay - neither rig has
bells and whistles, no automatic doppler tuning and no computer interface. I
used an El Cheapo Japanese azimuthal TV rotor, fixed elevation and a maximum
EIRP of 25 watts ... yes !!! - E.I.R.P.
(see "How much power is enough") <http://www.observations.biz>
I have satellite QSL's from all corners of the world.
(The world doesn't have corners twit, they're "round"......GM1SXX).
Things like aerials, a preamp and a 5 watt PA were all home made.
Despite certain schools of thought, circular polarisation is *NOT* a
necessity.
(A further discussion of circular polarisation can be found on the
OBSERVATIONS website) - <http://www.observations.biz>
Expensive to work an HEO ?? ... Gerroff !!!!. It's only expensive if you
absolutely must follow the route of - Mine's bigger than yours" mentality.
BTW Ib - (OZ1MY) - I agree with most of what you say but would like to point
out that not everyone who would like to operate amateur satellites can afford
a rig that supports auto doppler tuning if one moves to higher frequencies for
LEO's as you suggest. Radio amateur satellites ought to be available to all
amateurs - not just the affluent ones.
As station "developement" I used the excellent ITUNE software and a homebrew
interface via the push-buttons to give the rigs auto-doppler tuning for full
doppler tuning at the satellite.
Again - as cheap as chips - (those you have with fish).
Expensive ? ... difficult ? ... Ballcocks !!!!.
73 John. <la2qaa(AT)amsat.org>
------------------------------
_______________________________________________
Sent via amsat-bb(AT)amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 3, Issue 306
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