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CX2SA > SATDIG 29.06.09 00:44l 442 Lines 15886 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Advice for transponder ops (Jim Jerzycke)
2. ISS Contact (David H. Jordan)
3. Original 13 Colonies Special Event Update - K2T (claryco@xxx.xxxx
4. Re: Advice for transponder ops (Alan P. Biddle)
5. Velocity factor (PE0SAT)
6. Re: AO-27 Question (Greg D.)
7. Labjack U12 & Piggy back (Mani VU2WMY)
8. Re: Advice for transponder ops (Greg D.)
----------------------------------------------------------------------
Message: 1
Date: Sun, 28 Jun 2009 08:51:16 -0700 (PDT)
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Advice for transponder ops
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>,
amsat-bb@xxxxx.xxxxxxxxx@xxxxxxxxx.xxx
Message-ID: <888644.88106.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I also noticed a lot of "warbling" on the AO-7 stations I heard. I'm assuming
this is the "FM'ing" I've read about. I cranked my power down to about 10
Watts on the AO-7 passes I tried to work, and my downlink sounded
"OK", but some guys had a very 'watery' sound.
I also noticed a couple of sats where the downlink seemed to "drop out" after
I heard some very LOUD stations on them. I don't think it was receive blockage
causing me to lose the signal, but it was something I never heard before.
Jim
--- On Sun, 6/28/09, n3tl@xxxxxxxxx.xxx <n3tl@xxxxxxxxx.xxx> wrote:
From: n3tl@xxxxxxxxx.xxx <n3tl@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Advice for transponder ops
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Date: Sunday, June 28, 2009, 8:45 AM
AMEN brother!
I called CQ multiple times on AO-7 in CW last night between 145.940 and
145.944 (downlink), and NOBODY was tuning down that far. I found that very
disappointing, as I did the close proximity of all the stations on FO-29 and
VO-52.
I believe a lot of us could have made a lot more contacts on the linear
satellites if we'd just used the passband.
Thanks for this post Drew!
73 to all,
Tim - N3TL
-------------- Original message from "Andrew Glasbrenner"
<glasbrenner@xxxxxxxxxx.xxx>: --------------
> I took this screen grab of this morning's eastern FO-29 pass, and what it
> shows is in my opinion very illustrative of a problem that is getting worse
> even on days other than Field Day.
>
> http://i139.photobucket.com/albums/q305/glasbrenner/radio/FO-
29FDanotated.jpg
>
> Spread out! There is no good reason that we should have a dozen operators
> fighting over the center 15 kHz of a 100 kHz wide transponder. Remember the
> gentlemen's agreement is the lower third is for CW, middle 1/3 is for mixed
> ops, and the upper 1/3 is for SSB. There is nothing magic about the Doppler
> shift at the very center of the passband that simple addition and
> subtraction can't duplicate elsewhere.
>
> Just my opinion, and please take it constructively.
>
> 73, Drew KO4MA
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. Opinions expressed are those of the author.
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------------------------------
Message: 2
Date: Sun, 28 Jun 2009 16:17:37 +0000
From: "David H. Jordan" <n4csitwo@xxxxxxxxx.xxx>
Subject: [amsat-bb] ISS Contact
To: "AMSAT-BB" <AMSAT-BB@xxxxx.xxx>, "AMSAT-FLORIDA"
<AMSAT-FLORIDA@xxxxx.xxx>
Message-ID:
<1886664094-1246205930-cardhu_decombobulator_blackberry.rim.net-
114395677-@xxxxxxx.xxxx.xxxx.xx.xxxxxxxxxx>
Content-Type: text/plain
Thanks to the freq update from Kenneth this morning, the LMARS N4EH sat
station had a QSO with Bob Thirsk, VA3CSA on the 14:56 UTC pass this morning.
Dave, AA4KN and J.D., N4VIL
Sent via BlackBerry from T-Mobile
------------------------------
Message: 3
Date: Sun, 28 Jun 2009 12:44:40 -0400
From: claryco@xxx.xxx
Subject: [amsat-bb] Original 13 Colonies Special Event Update - K2T
To: amsat-bb@xxxxx.xxx
Cc: n3tl@xxxxxxxxx.xxx
Message-ID: <8CBC626DDBA191F-1108-1870@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Instead of signing K2J as initially planned, I was able to get "K2T" ("T"
since North Carolina is the "Tarheel" State) assigned to me at the last minute
for the 1-4 July time frame.
K2J will still be on the air from NC, at least on HF, and I'll be QRV on both
HF as well as the sats. I'll be on the FM birds at the least; the linear sats
will be used as well if I can get my Acer netbook to use SatPC32 to talk to my
897 and?adjust the freqs for Doppler. Contacts with either K2J or K2T will
count for North Carolina toward the certificate offered for the event.
Nine of the 13 colonial states will have sat stations on during the event.
We're still looking for ops for Connecticut, Delaware, Maryland, and
Pennsylvania.
Pse note that the special event runs the calendar days of 1-4 July; per the
event web site, it officially runs out at 05/0400Z July.
Finally, for?any sat op who is a county hunter, I'll be running North Carolina
counties on both CW and SSB on 20, 30, and 40 meters as K2T throughout the
event period and then using my regular call afterward on the way home to
Florida. Spots of my HF county hunting operation will be available at
http://ch.w6rk.com/?and will include the county that I'm in at the spot time
shown. Although the grid square is not indicated on this web site, it
shouldn't be difficult to identify since the county I'm in is shown.
73,
Jim, ND9M / VQ9JC / K2T
------------------------------
Message: 4
Date: Sun, 28 Jun 2009 12:03:12 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Advice for transponder ops
To: <amsat-bb@xxxxx.xxx>
Message-ID: <10744D73694D44CCACB567269EDF038F@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Indeed. Some folks, especially on FD weekend, are a little fuzzy on the
concept of "linear," aka "Zero sum game." Still, it is amazing what we were
able to get out of the old bird.
Alan
WA4SCA
------------------------------
Message: 5
Date: Sun, 28 Jun 2009 19:57:14 +0200
From: "PE0SAT" <pe0sat@xxxxx.xx>
Subject: [amsat-bb] Velocity factor
To: amsat-bb@xxxxx.xxx
Message-ID:
<24afc6e7fed2aff3719e5754e7d7b673.squirrel@xxxxxxx.xxxxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Thanks for reading,
Hi read the following and look at the image attached, after that, can you
tell me if there is a velocity factor when calculating the 1/4
lambda distance between the horizontal and vertical antenna?
The "Physical Method" following a different technique in order to avoid
the use of coaxial piece for the necessary 90? phase's difference. Here
the "Phase Difference" has been achieved by "shifting" (moving) each
element of the 2nd (Horizontal) antenna exactly one Quarter-Wavelength
(?/4) forward in space, vis-a-vis to each element of 1st (Vertical)
antenna onto the common Boom.
Thanks,
Jan
--
With regards PE0SAT
Internet web-page http://www.ham.vgnet.nl/
------------------------------
Message: 6
Date: Sun, 28 Jun 2009 11:02:26 -0700
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-27 Question
To: <kq6ea@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W6B221A0B9D38584AF1C97A9330@xxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
Hi Jim,
Interesting... That was probably the pass I was trying to work AO-27 too, but
I didn't have any success at all. All I got back was hash, with others
audible below it. I think my uplink was interfering my downlink locally,
though it went away after the pass. Gotta work on that.
But, in answer to your question, the satellite has a scheduled sequence that
it goes through. There's a program to predict when the different phases are
going to kick in, downloadable from
http://sites.google.com/site/ao27satellitescheduler/ and it shows exactly what
you and I experienced during the pass. I suspect it appeared like the
satellite turned on with conversations already in progress because they jumped
the gun a bit on the uplink, or weren't aware of the timer and were
transmitting without being able to hear anything. The digital parts of the
pass are telemetry, and you can decode and contribute what you hear to the
archive. The main page is http://www.ao27.org.
Enjoy,
Greg KO6TH
> Date: Sat, 27 Jun 2009 22:50:49 -0700
> From: kq6ea@xxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] AO-27 Question
>
> Hi, everybody.
> Today at Field Day was the first time I tried to work AO-27, and succeeded.
One thing I noticed, is that as the satellite came up over the horizon, I
wasn't hearing anything until what sounded like a long data burst happened.
Then I heard the sat come alive, with what sounded like people already in QSO.
As the sat progressed, I heard a lot of operators, then the long data burst
happened again, and it seemed like the sat went "dead" I know a bit about how
it's scheduled (TOPR), but since this is the first time I was able to hear it
well enough to actually consider it usable.
> What's the data burst? Is it part of the TOPR, or am I hearing something
else?
> 73, Jim KQ6EA
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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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Windows Live? SkyDrive?: Get 25 GB of free online storage.
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------------------------------
Message: 7
Date: Sun, 28 Jun 2009 23:59:05 +0530
From: Mani VU2WMY <wmy@xxxx.xxx.xx>
Subject: [amsat-bb] Labjack U12 & Piggy back
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <20090628182116.D4F4510C2@xxxxxxx.xxxx.xxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Hello Group,
Could someone tell me any satellite tracking software other than NOVA,
compatible with Labjack U12 & Piggy back combo to drive Yaesu G 5500
rototor.
with regards
Mani VU2WMY
------------------------------
Message: 8
Date: Sun, 28 Jun 2009 11:31:17 -0700
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Advice for transponder ops
To: <kq6ea@xxxxxxx.xxx>, <glasbrenner@xxxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>, <n3tl@xxxxxxxxx.xxx>
Message-ID: <BLU133-W23BFBDF4AD4AD2AE0C5189A9330@xxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
AO-7 was about as busy last night as I've ever heard it. CW all over the
bottom half of the passband, SSB in the upper half, lots of both coming
through very loud. Everything was pumping up and down and left and right with
the strain of all that RF being aimed at it. The beacon sounded a lot like
the one on Compass. All things considered, I think our grand old lady
performed very well.
I managed to snag my satellite QSO for Field day on AO-7. My "plan" was to
use AO-51 L/U, as I'd probably have a fair chance of getting through. Fewer
stations competing for the L-band uplink, went the theory. Well, in practice,
the competition was ZERO. After figuring out that the downlink was on .150
instead of .300 (Doh!), I found that I had the satellite all to my self.
Even as bad as the audio was on AO-7, at least one could communicate. In
contrast, the VU side of AO-51 was mostly an unproductive zoo.
Greg KO6TH
> Date: Sun, 28 Jun 2009 08:51:16 -0700
> From: kq6ea@xxxxxxx.xxx
> To: glasbrenner@xxxxxxxxxx.xxxx amsat-bb@xxxxx.xxxx n3tl@xxxxxxxxx.xxx
> Subject: [amsat-bb] Re: Advice for transponder ops
>
> I also noticed a lot of "warbling" on the AO-7 stations I heard. I'm
assuming this is the "FM'ing" I've read about. I cranked my power down to
about 10 Watts on the AO-7 passes I tried to work, and my downlink sounded
> "OK", but some guys had a very 'watery' sound.
> I also noticed a couple of sats where the downlink seemed to "drop out"
after I heard some very LOUD stations on them. I don't think it was receive
blockage causing me to lose the signal, but it was something I never heard
before.
> Jim
>
> --- On Sun, 6/28/09, n3tl@xxxxxxxxx.xxx <n3tl@xxxxxxxxx.xxx> wrote:
>
> From: n3tl@xxxxxxxxx.xxx <n3tl@xxxxxxxxx.xxx>
> Subject: [amsat-bb] Re: Advice for transponder ops
> To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
> Date: Sunday, June 28, 2009, 8:45 AM
>
> AMEN brother!
>
> I called CQ multiple times on AO-7 in CW last night between 145.940 and
145.944 (downlink), and NOBODY was tuning down that far. I found that very
disappointing, as I did the close proximity of all the stations on FO-29 and
VO-52.
>
> I believe a lot of us could have made a lot more contacts on the linear
satellites if we'd just used the passband.
>
> Thanks for this post Drew!
>
> 73 to all,
>
> Tim - N3TL
> -------------- Original message from "Andrew Glasbrenner"
<glasbrenner@xxxxxxxxxx.xxx>: --------------
>
>
> > I took this screen grab of this morning's eastern FO-29 pass, and what it
> > shows is in my opinion very illustrative of a problem that is getting
worse
> > even on days other than Field Day.
> >
> > http://i139.photobucket.com/albums/q305/glasbrenner/radio/FO-
29FDanotated.jpg
> >
> > Spread out! There is no good reason that we should have a dozen operators
> > fighting over the center 15 kHz of a 100 kHz wide transponder. Remember
the
> > gentlemen's agreement is the lower third is for CW, middle 1/3 is for
mixed
> > ops, and the upper 1/3 is for SSB. There is nothing magic about the
Doppler
> > shift at the very center of the passband that simple addition and
> > subtraction can't duplicate elsewhere.
> >
> > Just my opinion, and please take it constructively.
> >
> > 73, Drew KO4MA
> >
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. 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@xxxxx.xxx. 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@xxxxx.xxx. 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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------------------------------
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