[jamsat-news:3440] [ans] ANS-155 AMSAT News Service Weekly Bulletins
Lee McLamb
ku4os ＠ cfl.rr.com
2017年 6月 4日 (日) 11:26:06 JST
AMSAT NEWS SERVICE
ANS-155
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including 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.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* 2017 AMSAT-NA Board of Directors Nominations Due June 15
* Assistance Needed Recovering UNSW-ECO0 and i-INSPIRE 2 Cubesats
* Flight Qualified Digipeater and DTMF Transponder Available
* VUCC Awards/Endorsements for May 2017
* Amateur Radio BIRDS-1 CubeSat Constellation
* AMSATSA Reports Significant Progress with the Kletskous Cubesat
* MacDoppler Version 2.25 released
SB SAT @ AMSAT $ANS-155.01
ANS-155 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 155.01
From AMSAT HQ KENSINGTON, MD.
DATE June 4, 2017
To All RADIO AMATEURS
BID: $ANS-155.01
2017 AMSAT-NA Board of Directors Nominations Due June 15
It's time to submit nominations for the upcoming AMSAT-NA Board of
Directors election. Four directors' terms expire this year: Barry
Baines, WD4ASW, Jerry Buxton, N0JY, Drew Glasbrenner, KO4MA, and Bob
McGwier, N4HY. In addition, up to two Alternates may be elected for
one year terms.
A valid nomination requires either one Member Society or five current
individual members in good standing to nominate an AMSAT-NA member for
Director. Written nominations, consisting of the nominee's name and
call, and the nominating individual's names, calls and individual
signatures should be mailed to: AMSAT-NA, 10605 Concord St, #304
Kensington, MD 20895-2526.
In addition to traditional submissions of written nominations, which
is the preferred method, the intent to nominate someone may be made by
electronic means. These include e-mail, fax, or electronic image of a
petition. Electronic petitions should be sent to martha ＠ amsat.org or
faxed to (301)822-4371.
No matter what means is used, petitions MUST arrive no later than June
15th at the AMSAT-NA office. If the nomination is a traditional
written nomination, no other action is required. If it is other than
this, i.e. electronic, a verifying traditional written petition MUST
be received at the AMSAT-NA office at the above address within 7 days
following the close of nominations on June 15th.
ELECTRONIC SUBMISSIONS WITHOUT THIS SECOND, WRITTEN VERIFICATION ARE
NOT VALID UNDER THE EXISTING AMSAT-NA BYLAWS.
[ANS thanks Paul, N8HM, for the above information]
---------------------------------------------------------------------
Assistance Needed Recovering UNSW-ECO0 and i-INSPIRE 2 Cubesats
Joon Wayn, part of the AU02 (UNSW-EC0) and AU03 (i-INSPIRE 2) Australian
team of
QB50 cubesats, requests assistance from experienced and well-equipped
foreign
HAM amateurs experts.
Joon reports, our satellite was deployed last week and we have been
unable to
hear any beacons coming from it. We had several brainstorm sessions to
identify
possible configurations that could be changed to optimize the occurrence
antenna
redeployment sequence. Based on this, we devised a set of commands that
reflect
these changes in configurations that needs to be uplinked to the
satellite. We
have attempted to uplink these commands at 50W transmit power, but
there's no
response so far.
We strongly believe the satellite is still alive but has an undeployed
antenna.
As such, we require sufficient transmit gain in both transmit power and
antenna
gain to achieve positive uplink margin. Our problem is that we do not
have the
equipment to achieve the required transmit power to overcome the losses
due to
an unstowed configuration.
We have a recorded *.wav file that you can play through radio in FM mode to
perform the uplink.
Relevant technical info:
- The sat uses Nanocom ANT430 antenna that is still stowed. The stowed
antenna
is exposed on the outside of the spacecraft.
- The sat uses Nanocom U482C transceiver.
- The OBC might be trickling between on and off states and hence a
daytime or
dusk zenith pass is optimal for the uplink. Our ground station:
- 21 el H and 21el V yagi configured in RHCP
- Kenwood TS-2000 in FM mode with 50W transmit power.
Hope you have a good weekend, and do not hesitate to contact me at
cjwayn ＠ unsw.edu.au if you would be willing to help. Your attention has
been much
appreciated.
[ANS thanks Joon Wayn for the above information]
---------------------------------------------------------------------
Flight Qualified Digipeater and DTMF Transponder Available
If anyone has access to a ride to space on a HOST, remember there is a
fully qualified flight unit DIGIPEATER and DTMF transponder module ready to
fly as an attached payload to any HOST spacecraft. Lets call it QIKCOM-3.
The mission of the identical QIKCOM-2 is described here:
http://aprs.org/qikcom-2.html
QIKCOM-2 flight Unit #1 was delivered back in 2015, and it might finally
fly this fall. So, the backup FLIGHT unit is also ready to fly
(attached to a
suitable host).
Unfortunately, the Air Force (responsible for all DoD satellite launches)
has unilaterally declared that they will not accept any more Amateur Radio
student satellites from the Naval Academy for flight on DoD launches, and
so this unit is available to anyone that can get it attached to a payload
and get it launched.
[ANS thanks Bob, WB4APR, for the above information]
---------------------------------------------------------------------
VUCC Awards/Endorsements for May 2017
Here are the endorsements and new VUCC Satellite Awards issued by the
ARRL for
the period May 1, 2017 through June 1, 2017.
Congratulations to all those who made the list this month!
CALL GRIDS
KO4MA 1539
KB1RVT 1524
AC0RA 1143
W5PFG 1046
N8RO 959
N8HM 951
K8TL 901
XE1AO 584
KK4FEM 404
N6UK 400
WD9EWK 350
K5ND 301
AI6GS 230
K8BL 220
N1AIA 216
PV8DX 201
N9EAT 135 (NEW VUCC)
VR2XMT 111 (NEW VUCC)
K7TAB 100 (NEW VUCC)
KA9P 100 (NEW VUCC)
This list was developed by comparing the ARRL .pdf listings for May 1st
and June
1st, 2017. It's a visual comparison so omissions are possible. Apologies if
your call was not mentioned. Thanks to all those who are roving to
grids that
are rarely on the birds. They are doing most of the work!
[ANS thanks John, K8YSE, for the above information}
---------------------------------------------------------------------
Amateur Radio BIRDS-1 CubeSat Constellation
The BIRDS-1 constellation consists of five 1U CubeSats (BIRD-B, BIRD-J,
BIRD-G,
BIRD-M and BIRD-N). They are planned to launch the ISS on a SpaceX Falcon 9
CRS-11 on June 3, 2017. The satellites are made of the exactly same design
including the radio frequencies to be used and will be deployed from the ISS
later in the year.
The main mission of the constellation is to do experiments on radio
communication with a CubeSat constellation via a network of UHF/VHF amateur
radio ground stations all over the world.
The challenge is to distinguish each satellite from the four satellites
transmitting with the same frequency, hand over operation of a satellite
from
one ground station to another and assemble the satellite data, such as
housekeeping telemetry, music and the Earth images, obtained at
different ground
stations.
Amateur radio enthusiasts are asked to join the network to assist in the
data
downlink and reconstruction of the patchy satellite data into one meaningful
data. Orbit information and operational plan of each satellite will be made
available to the amateur radio community in the world. Software to
decode the
satellite data will be also made available.
The respective amateur ground stations that can successfully decode the
telemetry data, music and the Earth images, shall receive a QSL card
from the
BIRDS team. The data reconstructed by the effort of the amateur ground
station
network will be made public to share the sense of satisfaction and
achievement.
A particularly interesting mission of BIRDS project is the SNG mission that
exchanges music via a digi-singer. It is an outreach-oriented mission.
First,
music in MIDI format is uploaded from ground. Then the MIDI file is
processed
on-board using a vocal synthesizer. Finally, the processed music is sent
back to
Earth using UHF antenna as voice FM data.
During organized events on space utilization with schools or general public,
music could be heard using a common hand-held receiver and hand-made Yagi
antenna positioned to track the satellite at each given pass over the
region.
This has a tremendous effect on awareness of radio communication among
school
children and general public, especially in the countries participating
in the
BIRDS project, Japan, Ghana, Mongolia, Nigeria and Bangladesh.
Proposing to use CW, 1k2 AFSK FM, audio FM and 9k6 GMSK downlinks. The
IARU has
coordinated a downlink frequency of 437.375 MHz.
BIRDS project information:
http://birds.ele.kyutech.ac.jp/
http://birds.ele.kyutech.ac.jp/amateur.html
http://birds.ele.kyutech.ac.jp/newsletter.html
https://www.facebook.com/Joint-Global-Multi-Nation-Birds-BIRDS-
project-171403156542445/
Download the Paper – IAA-CU-15-01-16 Five-nations CubeSat constellation; An
inexpensive test case for learning and capacity building
https://www.researchgate.net/publication/289868265_IAA-CU-15-01-16_Five-
nations_CubeSat_constellation_An_inexpensive_test_case_for_learning_and_capaci-_
ty_building
The IARU Satellite Frequency Coordination pages are hosted by AMSAT-UK at
http://www.amsat.org.uk/iaru/
[ANS thanks AMSAT-UK for the above information]
---------------------------------------------------------------------
AMSATSA Reports Significant Progress with the Kletskous Cubesat
At the annual AMSATSA space symposium, significant progress with the
Kletskous
CubeSat was reported by the development team. A new design space frame was
released, which is constructed on a locked-in basis and now requires
assembly
screws. Although based on the original design by Deon Coetzee, ZR6DE, it
is much
lighter and fully machine produced with the advantage that its
manufacture is
repeatable exactly as the original. The Electronic Power System is in
its final
stages and offers advanced controls over the powering of the satellite even
should the battery failed.
The Symposium itself was a great success and as delegates said is the
highlight
on the annual amateur radio technology calendar. Planning for the 2018 is
already underway. For more, visit www.amsatsa.org.za
[ANS thanks the SARL weekly news in English 2017-6-3 for the above
information]
---------------------------------------------------------------------
MacDoppler Version 2.25 released
Dog Park Software is pleased to announce that MacDoppler Version 2.25
has been
released and can be downloaded from:
http://www.dogparksoftware.com/MacDoppler.html
What's New in this release ?
* Added Yaesu FT-991 driver.
* Added Prosistel Combo azel driver.
* Added Tuning Dial Tracking to IC-910.
* Show Tuning Dial Tracking capability.
* Added Rotator Stop button.
* Display offsets in VFO panel Uplink and Downlink.
* Fixed FT-847, FT-817 in-band doppler.
* Fixed GS232B ERC Rotor Readback.
[ANS thanks Dog Park Software and Southgate 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 addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
Lee McLamb, KU4OS
ku4os at amsat dot org
_______________________________________________
Via the ANS mailing list courtesy of AMSAT-NA
http://www.amsat.org/mailman/listinfo/ans
JAMSAT-NEWS メーリングリストの案内