Text 1913, 361 rader
Skriven 2007-10-16 20:39:00 av Holger Granholm (2:20/228)
Ärende: Amsat news service nr.287
=================================
AMSAT NEWS SERVICE
ANS-287
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@amsat.org
******************* AMSAT 2007 Space Symposium *************************
The Wireless Association of South Hills Amateur Radio Club announces the
2007 AMSAT Space Symposium will be held at the Pittsburgh Airport
Marriott Hotel on Friday, October 26 through Sunday, October 28, 2007.
The AMSAT web team has posted informational pages on the AMSAT web site.
You can find the announcement with many links at:
http://www.amsat.org/amsat-new/symposium/2007/index.php
**************************************************************************
In this edition:
* Certificates for AO-51 Sputnik 50th Anniversary Special Event
* AO-51 temporarily off the air
* GO-32 mobile APRS access success
* Satellite Shorts From All Over
* ARISS Status - 08 October 2007
SB SAT @ AMSAT $ANS-287.01
Certificates for AO-51 Sputnik 50th Anniversary Special Event
AMSAT News Service Bulletin 287.01
˙From AMSAT HQ SILVER SPRING, MD.
October 14, 2007
To All RADIO AMATEURS
BID: $ANS-287.01
Kevin Schuchmann, WA6FWF, reports that he has started to receive the
requests for certificates and is working on getting them out as fast as
possible. The response has been great so far. People requesting a
certificate should keep
the
following in mind:
1) this is not a small QSL card, it is a certificate that is 8.5" x 11",
if
you send a small envelope he will be forced to fold it.
2) make sure you have enough postage
3) if you want to make sure it does not get bent, include a card board
backer
or use a heavier envelope
4) do not include money or stamps, I appreciate the gesture but it is
not
necessary, ˙donations can be sent to Martha directly
5) if you put "your" address up in the upper left coner as the return
instead
of Kevin's then in the event there is not enough postage it will be
returned to the sender instead of Kevin for additional postage!!
Kevin observed that, "based on the fact that my mailbox was full and the
postman had to leave more at the front door I might need the couple
weeks we said it might take!"
[ANS thanks Kevin, WA6FWF, for the above information]
/EX
SB SAT @ AMSAT $ANS-287.02
AO-51 temporarily off the air
AMSAT News Service Bulletin 287.02
˙From AMSAT HQ SILVER SPRING, MD.
October 14, 2007
To All RADIO AMATEURS
BID: $ANS-287.02
At 1848Z over Europe on 11 October 2007, the software on AO-51 crashed,
shutting down both transmitters. Subsequently the repeater and BBS will
be
down for several days while the command stations reload. Sorry for
any
inconvenience.
73, Drew KO4MA
AMSAT-NA Vice President of Operations
[ANS thanks Drew, KO4MA, for the above information]
/EX
SB SAT @ AMSAT $ANS-287.03
GO-32 mobile APRS access success
AMSAT News Service Bulletin 287.03
˙From AMSAT HQ SILVER SPRING, MD.
October 14, 2007
To All RADIO AMATEURS
BID: $ANS-287.03
Bob Bruninga, WB4APR reports receiving over 150 packets from GO32 in the
mobile and gives the following report.
If you want to impress someone with handheld Satellite Communcications,
just stand outside during the prime morning or evening pass of GO-32
with your D7
HT set for APRS 9600 baud receive on 435.230 (5 KHz high
at the start of the
pass) and watch the messages fly by... Switch to
.225 and finally to .220 by
the end for maximum packets.
Tonight I finally remembered to set my D700 in my van to the GO32
downlink. ˙Was out doing honeydoos around 7:50 PM and heard a few
squelch
breaks. ˙This would be the first evening pass. ˙So that told me
to be out 100
minutes later for the prime pass of the evening.
I was not disappointed! ˙Received over 150 packes during the central 6
minutes of the pass. ˙I was just making hash marks on the back of an
envelope while watching the packets fly by on the front panel of the
radio. ˙I did tune 3
times for Doppler since I was just sitting there
with nothing else to do.
This confirms that an unattended D700 or D7 hooked to a simple OMNI
antnena
(and short coax) can make an excellent APRS satellite gateway.
˙With say a
dozen of these across the USA, then the APRS-Internet
system should get a
solid downlink!
After the fact, I came in and looked at the pass on Instantrack. ˙Here
is the nitty-gritty showing the elevation angle versus number of packets
received per minute.
TIME ˙EL ˙PACKETS
0933 ˙30 ˙18
0934 ˙40 ˙23
0935 ˙46 ˙36
0936 ˙45 ˙35
0937 ˙36 ˙24
0938 ˙26 ˙13
For an unattended ground station without Doppler tuning, my guess would
be
that this station would have received the center full 3 minutes of
this 45
degree pass.
So, what is your handy D7 doing sitting on your shelf turned off? ˙Hook
it to
a 19" vertical whip over a ground plane outside your window ˙and
contribute
to the National GO-32 APRS downlink system!
I'll get someone to write a simple turn-key APRS IGate background
application, so you don't have to hasssle with all the other APRS stuff
if you dont want
to. This way, you can just turn on the D7, hook it to
a serial port, run
this application in the background, and you too will
be a contributor to the
solid APRS downlink from GO-32!
Oh, On the D700, I had pressed the PACKET MONITOR button so that I was
seeing all GO-32 downlink packets on the front panel, not just the APRS
ones. ˙The D7 does not have the PMON button, so you will only see the
APRS packets. ˙But I
did receive the 3 APRS downlink bulletins
perfectly many times, and every 30
seconds or so, I did receive the
GO-32 TIME STATUS report on the front panel
of the radio.
So, even if you are not going to Igate, just hook that D7 to an outside
19" vertical whip (this serves as a 3/4 wave gain vertical on the 435
downlink) through a short coax (Antnena height does not matter, coax
loss does!). ˙You won't hear anything below 30 degrees anyway... ˙And
just leave the HT on all
the time tuned to 435.230. ˙Every morning and
every evening, you will receive
GO-32 and any other APRS operators
playing that evening.
When you hear good signals on 435.230, then 2 minutes later, switch to
435.225 and so on. ˙When the pass is over, set your radio back to
435.230 for the next HIGH pass 12 hours or so later.
You can leaave this on all the time, since it will not wake you up.
˙GO-32
PEAK passes are within an hour or so of 9 AM and PM local time
(maybe an hour
later after the change back to standard time)..
Thousands of AMSAT folks have these D7's, and I bet that 99% of them are
not
in use most of the time. ˙All we need are a dozen or so serving
this space-diversity ground station function...
[ANS thanks Bob, WB4APR, for the above information]
/EX
SB SAT @ AMSAT $ANS-287.04
Satellite Shorts From All Over
AMSAT News Service Bulletin 287.04
˙From AMSAT HQ SILVER SPRING, MD.
October 14, 2007
To All RADIO AMATEURS
BID: $ANS-287.04
+ Henk, PA3GUO, one of the control operators for the ANDE satellite
˙ reminds amateurs that the packet-to-voice mode still remains avail-
˙ able. ˙A command from a ground station is required to enable this
˙ mode so Henk invites amateurs interested in experimenting to con-
˙ tact him by e-mail at pa3guo@amsat.org.
+ Drew, KO4MA, AMSAT VP of Operations reminds amateurs interested in
˙ experimenting with different modes on AO-51 to submit their request
˙ via e-mail to ao51-modes@amsat.org. ˙One experimental mode under
˙ consideration includes a day dedicated for D-Star testing via AO-51.
+ Special Events Station GB5OSO, celebrating the 50th anniversary of
˙ the launch of Sputnik-1 has worked several stations through the
˙ SO50, VO52, AO51, AO27, and AO7 satellites. ˙Robert, G8ATE reported
˙ a transatlantic contact between GB5OSO and Jim, VE1ZM on SO-50.
+ Earlier this year the Japanese Space Agency (JAXA) sponsored an
˙ activity to fly your name to the moon aboard its "KAGUYA" (SELENE)
˙ lunar probe. ˙Selene has attained lunar orbit and JAXA reports
˙ that messages from 412,627 people around the world are now at
˙ the moon. ˙For more information see:
˙ http://www.isas.ac.jp/e/snews/2007/1005.shtml
+ A video featuring the Amateur Radio Mars Orbiter P5-A has been
˙ put on the YouTube website. Details at http://www.uk.amsat.org/.
[ANS thanks everyone for the above information]
/EX
SB SAT @ AMSAT $ANS-287.05
ARISS Status - 08 October 2007
AMSAT News Service Bulletin 287.05
˙From AMSAT HQ SILVER SPRING, MD.
October 14, 2007
To All RADIO AMATEURS
BID: $ANS-287.05
1. Anamizu Contact Successful
On Saturday, October 6, students from seven elementary and junior high
schools in Anamizu-town, Housu-gun Ishikawa, Japan gathered to ask Clay
Anderson, KD5PLA, questions via an Amateur Radio on the International
Space Station (ARISS) contact. Nearly six hundred students were
expected to participate in this event and preparations leading up to and
including the contact were to be covered by the media. More information
will follow as it becomes available.
2. Boy Scouts Participate in ARISS Contact
Boy Scouts from the Prairielands Council who attended the Space Jamboree
in Oakwood, Illinois, experienced a successful Amateur Radio on the
International Space Station (ARISS) contact on Saturday, October 6 via
the telebridge
station VK4KHZ in Australia. All twenty questions which
had been planned were
asked and answered. Clay Anderson, KD5PLA, then
answered an additional twelve
for a total of 32 questions posed by
thirteen of the scouts. Approximately
300 scouts, leaders, parents and
one newspaper reporter attended the event.
The audio was fed into the
EchoLink AMSAT (101 377) and JK1ZRW (277 208)
conference room servers,
receiving 30 connections, including 4 repeater
nodes, from 9 countries.
Among those countries listening were Poland,
Denmark, Ukraine, and
Thailand. The audio was also fed into the IRLP
Discovery Reflector
9010.
*The Prairielands Council contact was the 38th contact made by the
Expedition
15 crew members, tying Expedition 12 for the most contacts
made during one increment.*
3. Upcoming School Contacts
Malaysian space visitor Sheikh Shukor launched into space with
Expedition 16 crew members on Wednesday, October 10. While onboard the
ISS, Shukor plans to participate in the Amateur Radio on the
International Space Station (ARISS) program. He has been scheduled for 5
contacts with Malaysian students. Each group of students will gather at
the National Planetarium in Kuala Lumpur and will speak with Shukor,
9W2MUS, directly via 9M2RPN. The following contacts
have been planned:
Malaysian Group of Schools #1, Sunday, October 14, 2007 at 17:17 UTC
Malaysian Group of Schools #2, Monday, October 15, 2007 at 16:06 UTC
Malaysian Group of Schools #3, Tuesday, October 16, 2007 at16:28 UTC.
Malaysian Group of Schools #4, Thursday, October 18, 2007 at 15:39 UTC
Malaysian Group of Schools #5, Saturday, October 20, 2007 at 14:50˙UTC
4. ARRL Article on 2008 Spaceflight Participant Richard Garriott, KE5QNX
The American Radio Relay League (ARRL) ran a story on Richard Garriott,
KE5QNX, (son of Owen Garriott, W5LFL) who will be a spaceflight
participant
next year, launching to the ISS in October 2008. Garriott
plans to make
Amateur Radio on the International Space Station (ARISS)
contacts while
onboard the ISS. See:
http://www.arrl.org/news/stories/2007/10/03/100/?nc=1
[ANS thanks Carol, KB3LKI, for the above information]
/EX
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.
73,
This week's ANS Editor,
Lee McLamb, KU4OS
ku4os at amsat dot org
_______________________________________________
Via the ANS mailing list courtesy of AMSAT-NA
http://amsat.org/mailman/listinfo/ans
_______________________________________________
73 de Sam, OH0NC
---
ū MR/2 2.30 ū Aland Islands / 60 degrees North / 20 degrees East
* Origin: Coming to you from the Sunny Aland Islands. (2:20/228)
|