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CX2SA > SATDIG 20.12.09 14:23l 955 Lines 32040 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Question about vacuum and power module for linear
transponder (G0MRF@xxx.xxxx
2. Re: XW-1 Schedule on Dec 20-21 (P.H.)
3. Re: Question about vacuum and power module for
lineartransponder (i8cvs)
4. Re: XW-1 Schedule on Dec 20-21 (vk5alx@xxxxx.xxxx
5. Re: XW-1 Schedule on Dec 20-21 (Tony Langdon)
6. ANS-354 AMSAT News Service Weekly Bulletins (JoAnne Maenpaa)
7. UHF QRM from HAM stations!! (Luc Leblanc)
8. xw 1 satellite (Perry Yantis)
9. First XW-1 transponder pass over the US (Andrew Glasbrenner)
10. Road Trip (claryco@xxx.xxxx
11. Re: First XW-1 transponder pass over the US
(Patrick STODDARD (WD9EWK/VA7EWK))
12. satpc ?? (Bob- W7LRD)
13. Re: satpc ?? (Elan Portnoy)
14. AMSAT Newsletters (Phil Karn)
15. Keplerian data via e-mail (Erich Eichmann)
16. Congratulations XW-1 team! (Mark L. Hammond)
17. Re: Congratulations XW-1 team! (Bruce Robertson)
----------------------------------------------------------------------
Message: 1
Date: Sat, 19 Dec 2009 15:01:37 EST
From: G0MRF@xxx.xxx
Subject: [amsat-bb] Re: Question about vacuum and power module for
linear transponder
To: pe1rah@xxxxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <bfe.737c01bc.385e8b21@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 19/12/2009 15:36:41 GMT Standard Time, pe1rah@xxxxx.xxx
writes:
I also would like to know if anyone has experience in SSB mode with the
new power modules types from Mitsubishi. Like the RA60H1317M, which can give
60W power on 2m with only 50mW input power.
I am looking for some PA behind my LE005-R2 transponder design, to get a
small sized high-power linear transponder. The transponder gives 200mW PEP,
so the 50mW is no problem at all.I just wonder how linear these Mitsubishi
modules are, when using in linear mode.
Hi William.
The RA60H1317M is hopelessly inefficient for use in space. It has
reliability issues linked with the junction wires where they bond onto the
substrate.
A better solution would be to build a class AB linear from 2 suitable FETs.
An even better solution but one requiring a lot of development would be to
separate the modulation into phase and amplitude and then modulate the gate
with phase and drain with amplitude. Efficiency >80%
Besides....where is your 60W going? Venus? Huge power....
David
------------------------------
Message: 2
Date: Sat, 19 Dec 2009 21:17:49 +0000
From: "P.H." <bbjunkie@xxx.xxx>
Subject: [amsat-bb] Re: XW-1 Schedule on Dec 20-21
To: amsat-bb@xxxxx.xxx
Message-ID:
<a0b58e560912191317m49d875edu95024c36cbf91e9f@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thanks Alan, I and im sure others too appreciate you putting in all
the hard work on this project.
73
Pete
MI3EPN
------------------------------
Message: 3
Date: Sat, 19 Dec 2009 22:21:23 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Question about vacuum and power module for
lineartransponder
To: "G0MRF David Bowman" <g0mrf@xxx.xxx>, "William Leijenaar"
<pe1rah@xxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <001801ca80f1$38c83900$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: <G0MRF@xxx.xxx>
To: <pe1rah@xxxxx.xxx>; <amsat-bb@xxxxx.xxx>
Sent: Saturday, December 19, 2009 9:01 PM
Subject: [amsat-bb] Re: Question about vacuum and power module for
lineartransponder
>
> Hi William.
>
> A better solution would be to build a class AB linear from 2 suitable
> FETs. An even better solution but one requiring a lot of development
> would be to separate the modulation into phase and amplitude and then
> modulate the gate with phase and drain with amplitude. Efficiency >80%
>
>
> David
Hi David, G0MRF
What you suggest is the HELAPS principle of Envelope Elimination and
Restoration that was used in all linear transponders from OSCAR-6 ,OSCAR-7
OSCAR-10 and OSCAR-13 with an efficiency of about 85 %
http://www.amsat-dl.org/dl/HELAPS_en.pdf
The above is a complete description of the HELAPS principle written by
Dr. Karl Meinzer DJ4ZC with all functional schematic diagrams of the
linear transponder Mode-B on board of OSCAR-7
I hope it helps William PE1RAH
73" de
i8CVS Domenico
------------------------------
Message: 4
Date: Sun, 20 Dec 2009 10:24:55 +1030
From: vk5alx@xxxxx.xxx
Subject: [amsat-bb] Re: XW-1 Schedule on Dec 20-21
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <1710209077.20091220102455@xxxxxxxxx.xx.xxx>
Content-Type: text/plain; charset=iso-8859-15
Will need to wait a little longer to try out this
new satellite over Australia.
Current two switch on times are AFTER the satellite
footprint has passed my location and that of main
population centres of Australia.
Good luck to everyone else.
Alex VK5ALX
------------------------------
Message: 5
Date: Sun, 20 Dec 2009 11:51:23 +1100
From: Tony Langdon <vk3jed@xxxxx.xxx>
Subject: [amsat-bb] Re: XW-1 Schedule on Dec 20-21
To: amsat-bb@xxxxx.xxx
Message-ID: <4b2d7516.8702be0a.5e6e.01e5@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 10:54 AM 12/20/2009, you wrote:
>Will need to wait a little longer to try out this
>new satellite over Australia.
>Current two switch on times are AFTER the satellite
>footprint has passed my location and that of main
>population centres of Australia.
I also have to wait until the operators are able to turn it on for
the daytime passes. 1300z is way too late here. Still early days,
and I bet Alan and his team have their hands full with commissioning
activities. :) Sounds like it's going to be a top bird.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 6
Date: Sat, 19 Dec 2009 20:45:58 -0600
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] ANS-354 AMSAT News Service Weekly Bulletins
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Message-ID: <001901ca811e$8fb423f0$af1c6bd0$@xxx>
Content-Type: text/plain; charset="us-ascii"
AMSAT NEWS SERVICE
ANS-354
ANS is a free, weekly, news and information service of AMSAT North
America, The Radio Amateur Satellite Corporation. ANS reports on the
activities of a worldwide group of Amateur Radio operators who share an
active interest in designing, building, launching and communicating
through analog and digital Amateur Radio satellites.
Please send any amateur satellite news or reports to:
ans-editor@xxxxx.xxx
In this edition:
* AMSAT China's XW-1 Satellite Testing Proceeding Well
* AO-51 Schedule to Support SKN
* January 2010 AMSAT Kid's Day on AO-51
* Students and Teachers Invited to Fly a File on ARISSAT-1
* NASA Revised EVA Schedule Affects ARISSat
* Satellite Shorts From All Over
* ESA and CNES to Fly Atomic Clock to ISS Columbus Module
SB SAT @ AMSAT $ANS-354.01
AMSAT China's XW-1 Satellite Testing Proceeding Well
AMSAT News Service Bulletin 354.01
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.01
Amateur satellite operators worldwide have reported receiving strong
signals on the telemetry beacon of China's XW-1 satellite launched
on December 15, 2009.
The satellite is currently being commissioned but all three amateur
radio modes, which include an V/U FM repeater, V/U linear transponder,
and V/U AFSK packet, have been tested.
Michael Chen, BD5RV/4 reported, "I managed to operate the special
event station BT3WX to work several E2, BY, VR2, XX9 throughout an
evening pass of XW-1 using the FM transponder. It was the first open
test of this bird's transponder. Everything works just great!"
AFSK packets were active over Japan with JA0CAW receiving the down-
link on 435.675 MHz AFSK 1200bps.
JE1CVL, JH1EKH, BD4SY, JF2CTY, JH1BCL, JA5BLZ succeeded in a QSO over
Japan using the linear transponder in 'VHF(LSB) up and UHF (USB) Linear
Transponder Inverting on 145.950 MHz (Up) and 435.740 MHz (Down).
The XW-1 communications payload includes a beacon and three cross
band transponders operating in FM, linear, and digital modes.
Uplinks: 145.8250 MHz FM, PL 67.0 Hz.
145.9250 - 145.9750 MHz SSB/CW
145.8250 MHz AFSK 1200 BPS
Downlinks: 435.6750 MHz FM
435.7650 - 435.7150 MHz SSB/CW
435.6750 MHz AFSK 1200 BPS
Beacon: 435.7900 MHz CW
Users have posted videos on YouTube regarding XW-1:
http://www.youtube.com/watch?v=n4-0yuC4Sx4&feature=related
http://www.youtube.com/watch?v=WwyTZT6JkC4
Luciano Fabricio PY5LF has made a YouTube video showing his reception
of the beacon: http://tinyurl.com/yjgett6
XW-1 was a secondary payload aboard the CZ-4C rocket from Taiyuan
Satellite Launch Center into a sun-synchronous orbit about 1200
kilometers high. The primary payload of this launch is the Yaogen-8
Remote Sensing Satellite.
BD5RV/4 requests amateur radio operators send him audio recordings,
notes on received content, your QTH, callsign, date/time of the XW-1
beacon you heard to AMSAT China by email. Later, you'll be able to
upload it via web, but for now, email works. Send your files and
information to michael.bd5rv@xxxxx.xxx.
XW-1 CW Telemetry Decoder by Mike Rupprecht, DK3WN can be downloaded
from his web site at: http://www.dk3wn.info/software.shtml
You can get an updated copy of the XW-1 Telemetry Format at:
http://www.camsat.cn/index.php?option=com_phocadownload&view=category&
id=1:xw-1&download=1:xw-1-telemetry&Itemid=66 (careful - line wrap)
The XW-1 Store-forward Transponder User's Manual can be found on the
AMSAT web at: http://www.amsat.org/amsat-new/satellites/documents/
XW-1_Store-forward_Transponder_Users_Manual.pdf (careful - line wrap)
Details of the XW-1 satellite are available at:
http://www.camsat.cn/index.php?option=com_content&view=article&id=56&
Itemid=67 (careful - line wrap)
[ANS thanks Michael Chen BD5RV/4 and Alan Kung, BA1DU for the above
information]
SB SAT @ AMSAT $ANS-354.02
AO-51 Schedule to Support SKN
AMSAT News Service Bulletin 354.02
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.02
The AMSAT AO-51 Operations Group reminds everyone that AO-51
will be configured to support CW operations during the annual
Straight Key Night event. Participants may operate CW through
AO-51 between 0000 and 2400 UTC on 1 January 2010, using a
straight hand key.
AO-51 will be configured in the following mode during the event:
SSB/FM Repeater, V/U (CW QSOs only on Straight Key Night)
Uplink: 145.880 MHz USB
Downlink: 435.150 MHz FM
And don't forget to nominate someone you work for "Best Fist".
Please send your nomination to w2rs@xxxxx.xxx. A list of those
nominated will appear in ANS and the AMSAT Journal.
Have fun and enjoy AO-51!
[ANS thanks the AMSAT AO-51 Operations Group and Ray, W2RS for
the above information]
SB SAT @ AMSAT $ANS-354.03
January 2010 AMSAT Kid's Day on AO-51
AMSAT News Service Bulletin 354.03
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.03
AMSAT-NA and the AO-51 Operations Group will sponsor Kid's Day on
AO-51 on January 3, 2010. The event is open to all kids, worldwide.
We ask all amateur radio stations to give this short time window to
promote satellite operations with kids, by actually showing a kid how
to make contacts via AO-51, providing a station to contact, or stepping
aside to allow others to make contacts with the kids. During the event,
please limit contacts to stations that are operating with kids at the
microphone. This should allow the kids to have a nice QSO and pass some
information. Kids can tell their name, age, who is helping them operate
on AO-51, where they live, and other information about themselves.
AO-51 will be configured in the following mode during the event.
Uplink: 145.880 MHz FM voice
Downlink: 435.300 MHz FM voice
See http://www.arrl.org/FandES/ead/kd-rules.html on the ARRL
website for more Kids Day information.
Have fun and enjoy AO-51!
[ANS thanks the AO-51 Operations Committee for the above information]
SB SAT @ AMSAT $ANS-354.04
Students and Teachers Invited to Fly a File on ARISSAT-1
AMSAT News Service Bulletin 354.04
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.04
On 3 February 2006, cosmonaut Valery Ivanovich Tokarev hand launched
the Amateur Radio satellite SuitSat-1 from the ISS during an EVA
(Extra Vehicular Activity = Spacewalk).
SuitSat-1 was a very special Amateur Radio satellite. A discarded
Russian ORLAN Space Suit (in Russian a "Skafander") was equipped with
an Amateur Radio transmitter, which transmitted telemetry and
greetings from youngsters to the youth of the world in several
languages.
In 2010, an Amateur Radio satellite will once more be hand launched
from the International Space Station. It will be called ARISSat-1.
ARISSat-1 will again transmit messages recorded by students.
Moreover, teachers and students are invited to fly a file aboard this
amateur radio satellite.
The ARISSat-1 Team wishes to include on our new satellite a memory
stick of files prepared by students. This should be a jpg or pdf of
things the student has prepared such as a paper or a study done on a
STEM (science, technology, engineering, math) topic, a drawing of
space craft or a schematic, a journal kept on a STEM topic, a story
or news article about a STEM subject, a photo of the class doing a
hands-on STEM activity -- that type of thing.
Having the student's work be a part of ARISSat-1 means the student is
a part of the satellite project and along for the spacewalk and
deployment of ARISSat-1.
Readers of this Bulletin are invited to approach teachers and
students and draw their attention on this opportunity to participate
directly to a space flight for the honor of being part of space
activities.
Dave Jordan, AA4KN, will take delivery of these files and copy them
onto a memory stick. The quantity of files and the size of a file are
unlimited since memory sticks provide for a very large amount of file
space.
Files should be either .JPG or .PDF -- no Word documents, please.
Please send files to Dave Jordan's address -- <aa4kn@xxxxx.xxx>
He will look at all of them for content appropriate to students.
Files can be in any language as long as an English translation is
also included as a text file.
If the file contains sound recordings and/or photos or names of
persons, a "Talent Authorisation and Release" is requested. The
appropriate document can be downloaded from
http://www.rac.ca/ariss/Talent_Release.htm
The permission slip has to be signed by the student or his/her
guardian if the student is a minor.
The signed release form is to be mailed to:
AMSAT
Martha Saragovitz
850 Sligo Ave. Suite 600
Silver Spring, MD 20910
Deadline for submitting files: March 1st, 2010.
[ANS thanks the ARISS Team for the above information]
SB SAT @ AMSAT $ANS-354.05
NASA Revised EVA Schedule Affects ARISSat
AMSAT News Service Bulletin 354.05
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.05
NASA has informed AMSAT that the schedule of work for EVAs at the
International Space Station is being revised. The planned deploy-
ment of ARISSat-1 from the ISS is now being scheduled for either
Fall 2010 or early 2011 rather than Spring 2010.
This schedule adjustment also impacts when ARISSat-1 will be flown
to the Space Station with upload likely to take place sometime in
Summer 2010 rather than in January.
These revisions were made in response to new higher priority work
that must be done during the timeframe of the EVA that ARISSat-1
was originally scheduled in April 2010.
Overall, this revision helps ARISSat-1 because it provides additional
time for testing of the spacecraft. Furthermore, it also ensures
that the NASA Safety Review process for ARISSat-1 can be concluded
prior to shipment of the spacecraft to Russia.
The major items to complete for ARISSat are the IHU software, PSU
software, PSU testing and system testing. The structure is coming
together well and the team looks forward to providing an innovative
and reliable satellite this coming spring.
[ANS thanks Gould, WA4SXM for the above information]
SB SAT @ AMSAT $ANS-354.06
Satellite Shorts From All Over
AMSAT News Service Bulletin 354.06
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.06
+ SSTV pictures received during the Moscow Aviation Institute
Experiment aboard the ISS on December 9 can be viewed in the
ARISS SSTV Gallery at: http://www.amsat.org/amsat/ariss/SSTV/
+ Congratulations to Jean-Marie, F2IL for 10,000 contacts via
AO-7. (Via Zeljko, 9A2EY)
+ On December 7 Juan Antonio, EA4CYQ had a contact with Piraja
PS8RF in Brazil via AO-7 Mode B. Signals were reported to sound
clear without any noise or distortion over the Atlantic Ocean.
+ AMSAT Area Coordinator for the Washington, D.C. - Maryland Areas,
Pat Kilroy, N8PK will kick off the planning for the next AMSAT-DC
gathering with a teleconference call on Thursday, January 7, 2010,
at 7:00 P.M. Eastern Standard Time. Please RSVP for the telecon
directly to Patrick.L.Kilroy@xxxx.xxxx and he will forward the
meeting information to you.
+ A YouTube video showing how to make a VO-52 contact can be
viewed at: http://tinyurl.com/ydpc6ru
[ANS thanks everyone for the above information]
SB SAT @ AMSAT $ANS-354.07
ESA and CNES to Fly Atomic Clock to ISS Columbus Module
AMSAT News Service Bulletin 354.07
>From AMSAT HQ SILVER SPRING, MD.
December 20, 2009
To All RADIO AMATEURS
BID: $ANS-354.07
The French space agency (CNES) and ESA have signed an agreement
that paves the way for the launch of a high-accuracy atomic clock
to be attached to the outside of the European Columbus laboratory
onboard the International Space Station (ISS).
The PHARAO (Projet d'Horloge Atomique par Refroidissement d'Atomes
en Orbite) atomic clock, which will be combined with another atomic
clock, the Space Hydrogen Maser (SHM), to form ESA's Atomic Clock
Ensemble in Space (ACES), will have an accuracy of 1x10-16, corres-
ponding to a time error of about one second over 300 million years.
This new generation of atomic clocks in space will be instrumental
in enabling accurate testing of Einstein's theory of general rela-
tivity. In addition, it will contribute to the accuracy and long-
term stability of global timescales, such as Coordinated Universal
Time (UTC). A dedicated microwave link will send the timing signal
to the ground.
The atomic clock is designed for launch in the unpressurised cargo
bay of the Japanese H-II Transfer Vehicle (HTV) or commercial SpaceX
carrier in the second half of 2013. Once in orbit, it will be attached
to Columbus' Earth-facing external payload platform using the Station
Robotic Arm.
(Via SpaceDaily.com, see http://www.spacedaily.com/reports/PHARAO_
Atomic_Clock_Agreement_Signed_By_ESA_And_CNES_999.html for full
story.)
[ANS thanks SpaceDaily.com for the above information]
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining donors
to AMSAT Project Funds, will be eligible to receive additional benefits.
Application forms are available from the AMSAT Office. And with that
please keep in mind that Santa's elves are actually subordinate Clauses.
73,
This week's ANS Editor,
JoAnne Maenpaa, K9JKM
K9JKM at amsat dot org
------------------------------
Message: 7
Date: Sat, 19 Dec 2009 17:10:22 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] UHF QRM from HAM stations!!
To: amsat-bb@xxxxx.xxx
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <4B2D08FE.6422.691159A@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=US-ASCII
On UHF the band is shared up to a point the "other side" is considering us
as "interference" at least in 2005... Just check slide 9 in the
power point below. Can we also found them as QRM i think not as we are on a
secondary basis :(
www.dtic.mil/ndia/2005rangeops/tuesday/owens.pps
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 8
Date: Sat, 19 Dec 2009 22:05:35 -0500
From: Perry Yantis <py41@xxx.xxx>
Subject: [amsat-bb] xw 1 satellite
To: amsat-bb@xxxxx.xxx
Message-ID: <C596C5B7-0586-4A0D-9F65-2E86EB28AAF6@xxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Just worked the new xw-1 satellite.
It is nice to have a new ssb/cw satellite and it sounded great on the
past a short time ago.
Then that was followed by a VO-52 pass that was even louder (of course
it is higher).
I hope this new bird stays in the ssb/cw transponder mode most of the
time.
Great satellite times ahead.
This gives me more of a chance to reach 6,000 qso's by satellite
(still need 38)
Perry WB8OTH
------------------------------
Message: 9
Date: Sat, 19 Dec 2009 22:06:12 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] First XW-1 transponder pass over the US
To: Amsat-BB <amsat-bb@xxxxx.xxx>, Alan Kung
<alankung@xxxxxxx.xxx.xxx.xx>
Message-ID: <4B2D94A4.5000100@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
That was some really exciting stuff! I recorded the pass on my
SDR-IQ/R7000, and had the receive antenna split off to my normal station
as well. Right after turn on, K8YSE responded to my CQ, and we had a few
brief exchanges. About that time I realized the middle of the pass band
was going to be a bad place to be and moved up to the high end of the
passband.
After moving up out of the mess, I worked W4DFU at the University of
Florida, with Jay and Jimmy at the helm, then HK4MKE, Andrew in
Columbia. Signals were good until the end of the pass when I think I was
having some polarity fades on my fixed LHCP antenna. 1 to 5 watts was
PLENTY on the uplink, even when crowded. I use a 10 element horizontal
only yagi for the uplink.
http://s139.photobucket.com/albums/q305/glasbrenner/radio/?action=view¤t
=xw-112-20-20092-29-35Z.jpg
is a screenshot of from Spectravue before TCA. Notice the lost ditter
almost twice as strong as everyone else. There are also at least 9
separate SSB signals in that screengrab, and the beacon is at the far
right. The whole file is about 680 Mb. If anyone wants it, please
contact me. We can exchange it over Skype, or I'll burn it to your
CD/DVD with an SASE. Spectravue is a free download, and well worth
trying even if you don't have an SDR.
73, Drew KO4MA
------------------------------
Message: 10
Date: Sat, 19 Dec 2009 22:11:28 -0500
From: claryco@xxx.xxx
Subject: [amsat-bb] Road Trip
To: amsat-bb@xxxxx.xxx
Message-ID: <8CC4F394184DB7A-2C84-1D551@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
I'll be QRV from the mostly wet grid square EL86 during the AO27 pass
starting tomorrow at 20/1846Z; VOX starts at 1852Z. From there, I'll
overnight in EL96 and then head for two or three days in the Keys where I'll
put out EL94 and EL95 on the FM birds. Since my XYL is with me, I may not be
on during every pass, but I'll be on when possible.
While we're at Key West, I'll also be looking into the boats that make daily
tourist runs to Fort Jefferson in EL84. We won't go there during this visit,
but we're thinking about doing a short camping trip that would of course
include the sat gear.
Afterward, we'll be heading up to Georgia for a few days where I'll be on
from EM81, EM82, EM90, EM91, and EM92.
CU on the birds.
73, Jim, ND9M
------------------------------
Message: 11
Date: Sat, 19 Dec 2009 21:21:12 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: First XW-1 transponder pass over the US
To: amsat-bb@xxxxx.xxx
Message-ID:
<2e18ad3e0912192021s65c1f4f1qc0a0ac1280799bc0@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
> That was some really exciting stuff!
Yes, it was exciting to hear all the activity as XW-1 came up from
the horizon. Fun to work a new satellite on the first possible pass
for this part of the world. :-)
After hearing many more stations than normal on AO-7's pass at
0100 UTC, I knew there would be a crowd for XW-1. Many were
getting their non-FM setup lined up for the new satellite.
> Signals were good until the end of the pass when I think I was
> having some polarity fades on my fixed LHCP antenna. 1 to 5 watts was
> PLENTY on the uplink, even when crowded. I use a 10 element horizontal
> only yagi for the uplink.
Out here in DM43iu in the mountains almost 60 miles/100km
northeast of Phoenix AZ, the pass was only up to a maximum
elevation of 13 degrees. Despite the shallow pass and the
mountains all around here, it was very easy to copy the
downlink. Almost as easy to hear as VO-52. This satellite
will be a good one when it is available on a regular basis.
I used the same setup tonight as I do for the other non-FM birds
(two FT-817NDs without computer control, maximum 5W output,
Elk Antennas handheld 2m/70cm log periodic), and made 3
quick QSOs. Thanks to KD8CAO, K8YSE, and K7WIN for the
contacts. I heard many others, too many to remember without
replaying the recording I made.
After tonight, I can't wait to work XW-1's FM transponder tomorrow
night. I will be back in Phoenix for that scheduled pass, which has
about 8 degrees maximum elevation, but enough to work and
hopefully make some QSOs. Drew - I'll be interested in getting a
copy of that large file you have from tonight's pass, when I'm back
home and have access to broadband Internet again.
A big THANK YOU to Alan BA1DU, Michael BD5RV, and the
rest of the Chinese team that made and launched XW-1. It is
nice to have another satellite that - soon, hopefully - we can
regularly use.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 12
Date: Sun, 20 Dec 2009 06:25:51 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] satpc ??
To: amsat-bb@xxxxx.xxx
Message-ID:
<570160827.3194461261290351934.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxxxx
x.xxx>
Content-Type: text/plain; charset=utf-8
I downloaded new keps now I get a box that says," ungultrige
Gleitkommaoperation" marching across the screen? that won't stop unless I
restart the computer.? Assistance please.
73 Bob W7LRD
------------------------------
Message: 13
Date: Sat, 19 Dec 2009 23:30:53 -0800 (PST)
From: Elan Portnoy <elanportnoy@xxxxx.xxx>
Subject: [amsat-bb] Re: satpc ??
To: amsat-bb@xxxxx.xxx
Message-ID: <688994.81168.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Make sure CO-56 is not selected to your group. I had the same trouble until
removing it. It's no longer in orbit, so the Keps must be omitted from the
file.
Good luck,
Elan - WB2IOL
--- On Sun, 12/20/09, Bob- W7LRD <w7lrd@xxxxxxx.xxx> wrote:
> From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
> Subject: [amsat-bb] satpc ??
> To: amsat-bb@xxxxx.xxx
> Date: Sunday, December 20, 2009, 12:25 AM
>
>
> I downloaded new keps now I get a box that says,"
> ungultrige Gleitkommaoperation" marching across the screen?
> that won't stop unless I restart the computer.? Assistance
> please.
>
> 73 Bob W7LRD
> _______________________________________________
> 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: 14
Date: Sat, 19 Dec 2009 23:39:41 -0800
From: Phil Karn <karn@xxxxxxxx.xxx>
Subject: [amsat-bb] AMSAT Newsletters
To: amsat-bb@xxxxx.xxx
Message-ID: <4B2DD4BD.9040401@xxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thanks to Bob, NA2X, I have put up a few more early AMSAT Newsletters
from the 1969-1974 era. See
http://www.ka9q.net/newsletters.html
73, Phil
------------------------------
Message: 15
Date: Sun, 20 Dec 2009 10:00:38 +0100
From: "Erich Eichmann" <erich.eichmann@xxxxxxxx.xx>
Subject: [amsat-bb] Keplerian data via e-mail
To: <AMSAT-BB@xxxxx.xxx>
Message-ID: <045F9EF74E184155A3B4EC0536D7D813@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello
During the past couple of days (before we had Keps files with data for XW-1)
several users had problems to get their tracking program working with
XW-1. In some cases the problem was caused by the fact that they could
receive Keplerian data only via e-mail, I think.
The Keps files (amateur.txt, nasa.all etc.) require text in Ascii format
(plain text). The e-mails, however, usually don't contain plain text. If
one copies a data set directly from an e-mail into an existing Keps file the
data set will loose it's format and no longer fit the NASA-2-Line format.
The data lines are shorter than the lines of other satellites and the
parameters, for example the epoch time, are not at the right position.
So, the data set can not be read by the tracking program and may cause
wrong results or error messages.
To fix that issue the e-mail must first be saved with "Save as...." as text
file (option ".txt").
Then this file can be opened and with "copy and paste" the data set can be
inserted into an existing Keps file.
73s, Erich, DK1TB
------------------------------
Message: 16
Date: Sun, 20 Dec 2009 05:33:38 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Congratulations XW-1 team!
To: amsat-bb@xxxxx.xxx
Message-ID:
<5d8cecfe0912200233n77ae3728l7bc52679dafb2acb@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
There is much to celebrate with the successful launch and early
commissioning of the XW-1 satellite! Congratulations to Alan,
Michael, and the entire team---from construction, to launch, to
commissioning. Your hard work is evident and appreciated by ham
operators around the world.
I had the priviledg of working N3TL on that first linear transponder
US pass, and the bird performed and sounded wonderful! (thanks, Tim
:) )
I hope to be around to attempt the PBBS when it becomes active over
the US tody as well.
Best 73 to the XW-1/Hope-1 team!
--
Mark L. Hammond [N8MH]
------------------------------
Message: 17
Date: Sun, 20 Dec 2009 08:11:39 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: Congratulations XW-1 team!
To: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<49657a760912200411k427b74a1mfd3529216cac8118@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On Sun, Dec 20, 2009 at 6:33 AM, Mark L. Hammond <marklhammond@xxxxx.xxx>
wrote:
> There is much to celebrate with the successful launch and early
> commissioning of the XW-1 satellite! ?Congratulations to Alan,
> Michael, and the entire team---from construction, to launch, to
> commissioning. ?Your hard work is evident and appreciated by ham
> operators around the world.
>
> I had the priviledg of working N3TL on that first linear transponder
> US pass, and the bird performed and sounded wonderful! ?(thanks, Tim
> :) )
>
> I hope to be around to attempt the PBBS when it becomes active over
> the US tody as well.
>
> Best 73 to the XW-1/Hope-1 team!
>
>
> --
I wish the XW-1 team could have listened in on that first pass: it was
full of voices marveling at how low the bird was on the horizon while
they were continuing their conversations! For me, a simple 1/4 wave
vertical with preamp took me all the way to 0 degrees azimuth.
73, Bruce
--
http://ve9qrp.blogspot.com
------------------------------
_______________________________________________
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 4, Issue 671
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