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CX2SA > SATDIG 03.09.13 21:09l 257 Lines 8789 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V8 290
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Sent: 130903/1907Z @:CX2SA.SAL.URY.SA #:10720 [Salto] FBB7.00e $:AMSATBB8290
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Was So50, now center of the passband (Erich Eichmann)
2. Brown University CubeSat Article (M5AKA)
3. Re: US Space Fence Shut Down (Simon Brown)
4. Re: SO-50 (Clint Bradford)
5. Speaking of SO-50, ARRL Poll (Alan)
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Message: 1
Date: Tue, 3 Sep 2013 08:34:18 +0200
From: "Erich Eichmann" <erich.eichmann@xxxxxxxx.xx>
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Was So50, now center of the passband
Message-ID: <34CDFC60AC2F41FEB102240AC2068648@xxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi Drew and others,
if you want SatPC32 to start off the center of the passband of an SSB/CW
satellite do the following: Run the program choose that satellite. Tune the
radio to the start frequency you want - say 8 kHz above the center of the
passband. Then click menu CAT > Change/Store Data File > RX/TX Freq. Data.
>From the next program start the program will start at the new downlink and
uplink frequencies.
73s, Erich, DK1TB
----- Original Message -----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "B J" <va6bmj@xxxxx.xxx>; "amsat-bb" <amsat-bb@xxxxx.xxx>
Sent: Monday, September 02, 2013 8:50 PM
Subject: [amsat-bb] Was So50, now center of the passband
>
> Let me clarify a little. Previous to SatPC32 being the ubiquitous way to
> operate the transponders, people tended to spread out much more on the
> linear sats. CW was generally in the lower third to maybe middle, and
> voice was often spread out over much more of the passband. Now...I love
> Sat PC32, and I like full Doppler tuning, but just because the program
> defaults to the middle of the passband doesn't mean everyone should
> operate within 10 KHz of there.
>
> See
>
http://s139.photobucket.com/user/glasbrenner/media/radio/FO-29FDanotated.jpg.h
tml?sort=3&o=13
>
> Spread out and use the VFO! There's no reason to pile up like sardines in
> the middle. Maybe even (GASP) edit the doppler.sqf file to put you
> elsewhere in the passband to fine tune things at the start of the pass?
> Got a schedule, or operating from a rare grid? Let everyone know where to
> look (i.e. 25 khz up from the middle) and save yourself and others some
> QRM?
>
> 73, Drew KO4MA
>
> -----Original Message-----
>>From: B J <va6bmj@xxxxx.xxx>
>>Sent: Sep 2, 2013 2:11 PM
>>To: amsat-bb <amsat-bb@xxxxx.xxx>
>>Subject: [amsat-bb] Re: So50
>>
>>On 9/2/13, Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx> wrote:
>>> Or just work the transponders (not the FM repeaters) and avoid the lids.
>>> That normally means being somewhere other than the exact middle of the
>>> passband. I have a few stations that I will absolutely not work until
>>> they
>>> clean up their operating style. Otherwise, I go out of my way to look
>>> for
>>> new ops.
>>>
>>
>>If I happen to hear a QSO in progress when I'm checking for my
>>downlink on, say, FO-29, I move further up into the band and continue.
>> I might miss some potential contacts but I'm not in anyone's way.
>>
>>73s
>>
>>Bernhard VA6BMJ @ DO33FL
>>
>><snip>
>>_______________________________________________
>>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
------------------------------
Message: 2
Date: Tue, 3 Sep 2013 08:50:42 +0100 (BST)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Brown University CubeSat Article
Message-ID:
<1378194642.60980.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
An article on the Brown CubeSat just been published at
http://www.browndailyherald.com/2013/09/03/brown-cubesat-team-shoots-stars-mic
rosatellite/
73 Trevor M5AKA
------------------------------
Message: 3
Date: Tue, 3 Sep 2013 10:01:25 +0200
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: US Space Fence Shut Down
Message-ID: <00d801cea87b$c9948280$5cbd8780$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Interesting that you should mention this as I've been thinking about writing
a program to detect possible collisions but my input would be the available
TLE, of course we don't have TLE for every piece of junk out there.
So I would just load all available TLE data, do 'the math' and list the
possible collisions for the next hour / day / week / <whatever>.
Very easy code, would give my new i7-4770 something to do other than
filtering porn & spam.
Simon Brown (G4ELI/HB9DRV)
http://v2.sdr-radio.com
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of M5AKA
Isn't that the source of satellite near-miss information ?
See http://amsat-uk.org/2013/09/02/us-space-fence-shut-down/
------------------------------
Message: 4
Date: Tue, 3 Sep 2013 10:48:43 -0700 (GMT-07:00)
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: SO-50
Message-ID:
<13840098.1378230523413.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
>> ... As long as we have these self proclaimed Satellite Instructors
neglecting
the benefit of Full Duplex operation ...
Who are these "instructors?" Seems that would be a much smaller
"target audience" for us to educate.
Every audience I have ever presented my sat show to (more than 73
shows, a few thousand attendees) have heard me state, "It is
preferable to work the FM birds full-duplex, where you can monitor
the downlink as you key your mic ... " - and I explain simple ways
to accomplish that. Same "mantra" in a couple of CQ Magazine
articles ... and during a Bob Heil / Gordon West "Ham Nation"
segment ... same as I have written for Gordon West's licensing
manuals ...
Well, with just this one "easily-worked" bird (not counting the ISS)
up there, now more than ever should we be stressing working duplex.
But to be honest with you, after reading another thread yesterday
regarding the "out of control" nature of SO-50, I had to see for
myself what the "problem" was. So I worked a mediocre pass (about
25 degrees - and I only worked the first few minutes - BEFORE it was
at its best elevation. I worked three states sitting on the grass out
in the back yard with my demo setup of FT-60R and Arrow. (Don't tell
anyone, but I did not work full duplex - I needed to see if I could
experience the total failure to communicate that a couple others have
written about. And try as I might, I couldn't fail ... After I made
one call successfully, two others called me from around the country.)
YES - it got a little chaotic. YES - there were cases of people
stepping on others. But it was not as gruesome as some have written -
not as bad as a Field Day or a special event weekend. Heck, it was a
FEDERAL HOLIDAY in the U.S., and I had no problem working three states
with 2 Watts during the beginning of a 25 degree pass.
Are people getting into this aspect of the hobby with unrealistic
expectations? And if they are, where are they getting their
information about working the FM birds?
Clint Bradford K6LCS
http://www.work-sat.com
909-241-7666 - cell
----------------------------------
Clint Bradford, K6LCS
http://www.clintbradford.com
------------------------------
Message: 5
Date: Tue, 3 Sep 2013 12:54:11 -0500
From: Alan <wa4sca@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Speaking of SO-50, ARRL Poll
Message-ID: <80D84E3771B346D4903D2BED62C5C25E@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi,
There is a poll which is loosely about what to do when HF propagation is
bad. One of the questions is
whether you have ever operated SO-50.
http://www.arrl.org/news/new-quickstats-poll-now-available-on-arrl-website-28
If you are a League member, have at it.
73s,
Alan
WA4SCA
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. 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 8, Issue 290
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