| |
CX2SA > SATDIG 04.02.11 22:15l 421 Lines 14728 Bytes #999 (0) @ WW
BID : AMSATBB676
Read: GUEST
Subj: AMSAT-BB-digest V6 76
Path: IZ3LSV<IK2XDE<DB0RES<DK0WUE<IK6ZDE<VE2PKT<CX2SA
Sent: 110204/2004Z @:CX2SA.LAV.URY.SA #:50114 [Minas] FBB7.00e $:AMSATBB676
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Arissat-1 lifetime (MM)
2. VERY close approach of CQ1 today (PA3GUO)
3. Kelly to go ahead as shuttle commander (Clint Bradford)
4. Orlando Hamcation Feb11-13 (travelers) (Bob Bruninga)
5. Re: Linear Xpndr Operating Economics. (George Henry)
6. Re: ""you may as well use Skype..." (Tony Langdon)
7. Re: CH-19 11 Meters (Bob K0NR - email list)
8. California Amplifier downconverters (Allen Vinegar)
----------------------------------------------------------------------
Message: 1
Date: Fri, 4 Feb 2011 10:23:47 -0800 (PST)
From: MM <ka1rrw@xxxxx.xxx>
Subject: [amsat-bb] Re: Arissat-1 lifetime
To: amsat-bb@xxxxx.xxxx "Giulio P. AOL" <giuliop70@xxx.xxx>, Gould
Smith <gouldsmi@xxxxxxxxx.xxx>
Message-ID: <203357.49392.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
wow, 5 years of time and money invensted into Arissat-1 for a 6 month run.
Mean while, all other ISS projects put on hold.
And it missed its lauch date of "fall 2007".
--- On Wed, 2/2/11, Gould Smith <gouldsmi@xxxxxxxxx.xxx> wrote:
> From: Gould Smith <gouldsmi@xxxxxxxxx.xxx>
> Subject: [amsat-bb] Re: Arissat-1 lifetime
> To: amsat-bb@xxxxx.xxxx "Giulio P. AOL" <giuliop70@xxx.xxx>
> Date: Wednesday, February 2, 2011, 10:00 PM
> Hello Giulio and BB,
>
> NASA calculates 3 - 6 months lifetime.? It has to do
> with the original
> altitude of the ISS, the force and the angle.
>
> 73,
> Gould, WA4SXM
> ----- Original Message -----
> From: "Giulio P. AOL" <giuliop70@xxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Wednesday, February 02, 2011 5:49 PM
> Subject: [amsat-bb] Arissat-1 lifetime
>
>
> >
> > Hi, i have a question: what is the estimated lifetime
> of Arissat-1 before
> > re-entering in atmosfere from his first orbit?
> > Thanks & 73
> > Giulio AB2VY
> >
> >
> >
> >
> > _______________________________________________
> > 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: Fri, 4 Feb 2011 19:23:46 +0100
From: PA3GUO <pa3guo@xxxxxxx.xx>
Subject: [amsat-bb] VERY close approach of CQ1 today
To: amsat-bb@xxxxx.xxx
Message-ID: <1714896.1296843828047.JavaMail.root@xxxxxxxx.xxxxxx.xx>
Content-Type: text/plain; charset=utf-8
http://www.portaltotheuniverse.org/blogs/posts/view/95329/
The newly discovered object, officially designated 2011 CQ1, will make a
close Earth approach today February 04, 2011 around 19:40UT at
~0.03(LD)/0.00008(AU) or 11855 km.2011 CQ1 has been discovered by R. A.
Kowalski few hours ago in the course of the "Catalina Sky Survey" with a
0.68-m Schmidt + CCD. The object was moving at roughly 6 "/min and it was of
magnitude ~19. According to its absolute magnitude H=32 this is a very small
object, in the order of 4-5 meters.Just few hours after his discovery, we
have been able to follow-up this object using remotely a 0.35-m f/3.8
reflector + CCD of "Tzec Maun Observatory" in New Mexico. At the moment of
our images (on February 04.46), "2011 CQ1" was moving at 23"/min and its
magnitude was ~18.Here you can see our image (stacking of 20 unfiltered
exposures, 10 seconds each). Click on the image for a bigger version:While
this is an animation showing the object movement in the sky:According to
Bill Gray (Findorb developer): "That perig!
ee value is solid to within a few kilometers. So no chance of an impact,
but still _very_ close!!"The orbital element published here, are very
interesting:2011 CQ1Perigee 2011 Feb 4.818749 TT = ...
http://remanzacco.blogspot.com/2011/02/2011-cq1-very-close-approach.html
The newly discovered object, officially designated 2011 CQ1, will make a
close Earth approach today February 04, 2011 around 19:40UT at
~0.03(LD)/0.00008(AU) or 11855 km.
2011 CQ1 has been discovered by R. A. Kowalski few hours ago in the course
of the "Catalina Sky Survey" with a 0.68-m Schmidt + CCD. The object was
moving at roughly 6 "/min and it was of magnitude ~19. According to its
absolute magnitude H=32 this is a very small object, in the order of 2-3
meters.
--
Henk, PA3GUO
------------------------------
Message: 3
Date: Fri, 04 Feb 2011 10:32:14 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Kelly to go ahead as shuttle commander
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <B354ED44-BCD2-4031-B318-4D6484C6229F@xxx.xxx>
Content-Type: text/plain; CHARSET=US-ASCII
Washington (CNN) -- Astronaut Mark Kelly will command the upcoming flight of
the space shuttle Endeavour, according to a statement released Friday by NASA.
------------------------------
Message: 4
Date: Fri, 4 Feb 2011 13:36:33 -0500
From: "Bob Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Orlando Hamcation Feb11-13 (travelers)
To: "'TAPR APRS Mailing List'" <aprssig@xxxx.xxx>,
<APRS@xxxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <120c01cbc49a$72acb540$58061fc0$@xxx>
Content-Type: text/plain; charset="us-ascii"
> The Orlando Hamcation is just a week away...
Checking the ham radio tactical situation in Orlando, (http://aprs.fi enter
Orlando, FL)), there does not appear to be any hamfest. The only hamfests
showing to mobile operators this month are 2 in PuertoRico, 1 in Japan and 1
in Ontario.
(See: http://map.find.com/hfest* )
Although there is no Hamfest showing in Orlando, there are some other good
objects visible to mobile operators:
- 147.730 recommended traveler repeater downtown
- 147.120 recommended traveler repeater NW
- 442.525 recommended traveler repeater NE
- 443.525 voice repeater at the International Airport for HT travelers
- Two winlink nodes on 145.07
- IRLP node 4904 near Executive Airport
- 443.1375 D-star repeater in the Northwest
- 443.625 D-star repeater downtown
- 1291.3 D-star near Executive Airport
- 1285 D-star repeater
The other resource objects that might be useful for visitors could be:
* HFEST-ORL showing the location, date and talk-in frequency
* Object showing the Recommended Local Echolink node
* Object showing the location of any HAM stores in the area
* Any other important resources for visitors or locals
Then on the day of the event, other useful information objects might be:
* AMSAT chat channel frequency
* ATV chat frequency
* DX chat frequency, etc
* Announcements about events and times
Remember, there are now 8 models of APRS ham radios and many add-on kits
that can flash this information to the mobile operator or HT on his front
panel or heads-up display; and 3 of them can auto-tune instantly to the
FREQ, TONE, and shift of any such object seen. This really provides the
mobile operator traveling to a hamfest all the information he needs as he
approaches the event.
Such info and auto-tuning is also helpful in the dozens of cities, towns and
repeaters they pass along the way to get there.
With almost all repeaters these days having PL or CTCSS, it is hard to just
play radio along the way. The APRS Frequency objects for radio
front-panel-display were designed to solve this invisibility problem.
Anyone with a TNC can put one of these LOCAL objects on the air. See the
formats: www.aprs.org/localinfo.html
And someone PLEASE put the HFEST-ORL on the map: See
www.aprs.org/hamfest.html
And consider placing an http://aprs.fi map in front of the talk-in operator
so that he can SEE where all the lost souls are out there driving around.
Helping the mobile ham traveler is what it is all about.
Bob, Wb4APR
------------------------------
Message: 5
Date: Fri, 4 Feb 2011 10:49:04 -0800 (PST)
From: George Henry <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: Linear Xpndr Operating Economics.
To: AMSAT <amsat-bb@xxxxx.xxx>
Message-ID: <901853.17077.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
My first "satellite" rig was a pair of Drake B-line twins with the TC-2
transmit
converter and SC-2 receive converter, a homebrew 2-meter turnstile on a tripod
in the driveway, and 10- and 15-meter dipoles in the garage & house attics.? I
could work RS-10/11, RS-12/13, and RS-15 in modes A, K, and T, as well as HF,
and had less than $600 invested in the whole station.
Over the weekend I will be posting for sale a bit of ham radio history that
will
enable someone to uplink to AO-7 and FO-29 on the cheap...? a KLM Echo 70.?
Watch for more details!!!
George, KA3HSW
----- Original Message ----
> From: k6yk <k6yk@xxxx.xxx>
> To: nss@xxx.xxx
> Cc: amsat-bb@xxxxx.xxx
> Sent: Fri, February 4, 2011 11:33:46 AM
> Subject: [amsat-bb] Re: Linear Xpndr Operating Economics.
>
> Boy, that sounds familiar !
> My first Oscar station was? a? Regency HR-2B? FM? rig
> with ONE crystal in the middle of the uplink band on 2 meters,
> keying the? high-low power switch.? You couldn't hear the low
> power but the 15 watts on high power made it fine.
>
> And the receivers were an HW-101 and Hallicrafters? SX-117.
> Bought an AMECO preamp for HF, which helped out on 10 meters.
>
> That was good enough to work lots of stations, maybe a total of
> 600 QSO's on OScar 6 and 7!
>
> Then when the RS-10, 11 came along, I tried some mobile work
> using an ICOM 230, again only one frequency, keying the PTT line,
> no chirp, and? Yaesu FT-301 for receiver.? Larson 2 meter antenna and
> Hustler 10 meter antenna on the pickup.? Worked quite a few QSO's
> that way, too!
>
> All? CW only, of course on mode A.? Didn't get an all-mode rig
> until about 1986 during the "RS" era.
>
> 73,
> John
>
>
>
------------------------------
Message: 6
Date: Sat, 05 Feb 2011 06:11:36 +1100
From: Tony Langdon <vk3jed@xxxxx.xxx>
Subject: [amsat-bb] Re: ""you may as well use Skype..."
To: Diane Bruce <db@xx.xxx>, Gordon JC Pearce <gordonjcp@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4d4c4f6f.584ddf0a.7c0d.299c@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 02:18 AM 2/5/2011, Diane Bruce wrote:
>On Fri, Feb 04, 2011 at 08:03:59AM +0000, Gordon JC Pearce wrote:
> > On Thu, 2011-02-03 at 13:49 -0500, Diane Bruce wrote:
> >
> > > >
>...
> > It doesn't in my case. I have *no interest at all* in operating
> > satellites that require a complex fixed station with computer tracking
> > and tuning. None. Doesn't interest me one bit.
>
>Which is why I was interested in AO-40, for all the same reasons.
>However, since I had already invested in setting up an AO-40 station,
>I might as well use it.
I'm certainly not interested in automated tracking, due to the cost
and mechanical complexity. I'm not good with anything mechanically
complex. AO-40 offered simple antenna pointing, which was one of its
attractions. Computer controlled tuning, I can manage that.
> > The fun part is communicating via simple inexpensive satellites, with
> > simple inexpensive hardware that you can make at home. Really, you
>
>Well, sure no disagreement from me on that. But I would suggest a one
>design fits all idea. Make a simple simple satellite design that
>could be assembled in near mass production quantities, get them into
>orbit whenver opportunities prsent themselves.
This was suggested some time back for linear transponders, to make
them available to the university groups building small satellites, so
more linear birds would make it to LEO.
>Well, instead of thinking HEO for the time being, one simple design
>tossed up multiple times, on the same frequency pairs, to minimise
>tracking efforts is the way to go.
Worth a thought. a constellation of LEOs could be quite
useful. There might be some interference issues to consider, though
in some circumstances, Doppler can mitigate some of these
issues. SSB also has advantages here too, no capture effect.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 7
Date: Fri, 04 Feb 2011 12:30:31 -0700
From: Bob K0NR - email list <list@xxxx.xxx>
Subject: [amsat-bb] Re: CH-19 11 Meters
To: amsat-bb@xxxxx.xxx
Message-ID: <4D4C53D7.5010601@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
And if we are going to make fun of new operators, we need to modernize our
terminology.
Referring to "Channel 19" or "11 Meters" is sooooooo 20th Century. :-)
73, Bob K0NR
On 2/2/2011 8:56 AM, Dee wrote:
> Everyone makes mistakes.
> There is about 10 reams of instructions available on www.AMSAT.org about
> using FM satellites--Read and ask questions..I give many talks and always
> have similar questions because people do need some instructions....Good luck
> on the sats and enjoy them because of the hard work of a few people that
> volunteer their time to put them together for "US." Please join AMSAT when
> you start to feel guilty..Hi, Hi...
>
> This reminds me of when Owen Garriot, W5LFL, was first on the Shuttle. The
> uplink and the downlink were very much confused by people trying to contact
> him. Speaking of chaos - everyone that transmitted on the downlink was
> harshly reprimanded and caused many moments of listening time abuse. The
> unhamly comments and language heard was enough to turn anyone off about Ham
> Radio. What a mess....
>
> Rule of thumb? Listen to a few passes-learn the technique in use - then use
> it yourself.... AND Be K I N D to each other. Get your 2 or so QSO's in
> and leave some time for others to do the same....Good Luck...
> Giving a talk at the BARA meeting in NJ on February 13th - stop by and join
> in the fun evening.
> 73,
> Dee, NB2F
>
------------------------------
Message: 8
Date: Fri, 4 Feb 2011 14:56:06 -0500
From: "Allen Vinegar" <tokens@xxxxxxx.xxx>
Subject: [amsat-bb] California Amplifier downconverters
To: <amsat-bb@xxxxx.xxx>
Message-ID: <5302361691C144B5A4CED5DE9348CD81@xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I am looking for data sheets, manuals, etc. for the following California
Amplifier downconverters:
C31243
C31300
130015
130811
Any help would be appreciated.
Thank you and 73,
Al W8KHP
------------------------------
_______________________________________________
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 6, Issue 76
***************************************
Read previous mail | Read next mail
| |
