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VK7AX > NEWS 13.12.09 06:05l 439 Lines 26237 Bytes #999 (0) @ WW
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To : NEWS@WW
VK7 REGIONAL NEWS BROADCAST
FOR SUNDAY 13TH DECEMBER 2009
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Congratulations
Remembrance Day Contest 2009
As heard on the WIA National News it was VK6 with 102 Logs amounting to a total of 15,355 Points who was the winner state for the RD Contest 2009.
A total of 34 logs were submitted from VK7 with 22 logs submitted for the HF Single Operator Phone section, 10 logs in VHF Single Operator Phone section, one log in the HF Single Operator Open section and one log in the HF Multi Operator Phone section.
Congratulation to all who participated and especially to Laurie VK7ZE who took out first place in the HF Single Operator Phone section with 847 points and Martin VK7GN who took out first place in the HF Single Operator Open section with 843 points.
Full details can be found at the link on the email and internet editions of this broadcast.
http://www.wia.org.au/members/contests/rdcontest/
(73, Justin, VK7TW)
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VK7 EVENTS CALENDAR
A summary of the events across VK7 over the coming months:
REAST 每 December 16, 23 每 ATV experimenter＊s nights 每 Queen＊s Domain Clubrooms 每 around 7:30pm.
http://reast.asn.au/events.php#ATVnights
All Hams 每 December 25 每 St Nic brings you that rig and/or antenna of your dreams＃.HIHI.
REAST 每 January 6, 13, 20 & 27 每 ATV experimenter＊s nights 每 Queen＊s Domain Clubrooms 每 around 7:30pm.
http://reast.asn.au/events.php#ATVnights
CCARC 每 January 30 - Next general meeting.
http://www.my-x15.net/ccarc
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VK7 Regional News Broadcast Update
Broadcast Roster Released
The 2010 broadcast roster has been released and is available on the VK7 Regional News web page.
http://reast.asn.au/news.php#roster
If you would like to be involved in re-broadcasting on any band and this means not only where there are blanks appear on the roster then, please contact the VK7 Regional News Coordinator or the rebroadcaster you are listening to this morning.
(Justin, VK7TW, VK7 Regional News Coordinator)
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Northern News
Northern Tasmanian Amateur Radio Club
The WIA centenary 2010 call books have arrived, and they＊re still a bargain at last years price of $25. Get in touch with the club Treasurer, Ann VK7FYBG to secure your copy.
There＊s a brand new 70 centimetre band repeater on the air at Companion Hill. With the callsign VK7RAL the repeater transmits on 439.900 MHz with a standard 5 MHz negative shift for the input, and you＊ll need to transmit a CTCSS tone of 141.3 Hz to access the repeater. It can be heard in some surprising places, and from all accounts seems to be working very well indeed. If you do want to test it out, don＊t forget to give your callsign with your transmission, even if it＊s just a short carrier to see if the repeater can hear yours.
Another December Christmas BBQ has come and gone, and even though the weather wasn＊t quite the balmy summer evening we＊d normally expect for this time of year, a very good time was had by all. VK7PL Peter bought along his metal detector and even made a very small find, but we suspect that it won＊t finance any lavish overseas holidays though hihi.
If you＊re lucky enough to be getting away for holidays early, or perhaps you＊re a visiting ham here during the festive season, we hope you travel safely and enjoy your break.
Thanks from
(Jason VK7ZJA NTARC Secretary)
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NORTH WEST News
North West Tasmania Amateur Television Group
http://www2.vk7ax.id.au/atvgroup/
Club Xmas Dinner
Last Wednesday Night was the night for members and friends to attend the Club＊s Xmas dinner at the Bass and Flinders Restaurant, East Ulverstone.
Attendance was excellent with members bringing along their partners which as we know IS important as they have to endure the activities of our hobby throughout the year.
This was a good opportunity to celebrate a very successful year for our Club taking, into account that it has been in operation for only 10 months.
As a Club, we have come a long way during this time and achieved a lot. It is anticipated the Club can achieve even more in the new year with particular focus on education amongst the youth in our community and continued propagation tests with ATV transmissions and the ATV Repeater VK7RTV.
Congratulations to the WIA National News Crew
An email has been sent to Robert VK3DN, Bryan VK3HRX and Jack VK3WWW on behalf of the Club, congratulating them on their recent achievements in producing the last 2 WIA National News on video, and providing the recorded stream for download and replay on ATV Repeaters and transmissions.
Both broadcasts have been downloaded and played via ATV in the Ulverstone area over the last few days. The standard of the presentation, video quality and everything else was very professional and it is hoped we will receive future broadcasts of this quality in the future. Well done guys.
Additional Net on Wednesdays
Activity from our new Foundation License amateur, Graham VK7FGAA and his friend Tony VK3AJW in Bendigo, has resulted in another net being added to the Club repeater system.
Effective immediately, as of Wednesday 9th. Dec. IRLP Node 6616 (VK7RTV 2m. repeater) will automatically connect to Reflector 9558 at 2000 hrs. and disconnect at 2100 hrs. The Central Goldfields Amateur Radio Club (in VK3) conducts its VHF Net each week via reflector 9558 and has invited the Club to take part.
To accommodate this additional Net, the AR Broadcast scheduled for 2000 Hrs. has been moved to commence at 1915 hrs. with a short time to allow check ins prior to the commencement of the GGARC VHF Net.
As always, ALL local VK7 amateurs are welcome and invited to join in.
73＊s until next time
(Tony VK7AX, News Officer NWT-ATV Group)
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Cradle Coast Amateur Radio Club (CCARC)
CCARC News
http://www.my-x15.net/ccarc
The Cradle Coast Amateur Radio Club held it's Inaugural Christmas Dinner/ Social evening on Saturday the 5th of December at the Best Western Bass & Flinders Convention Room, Eastlands Drive, East Ulverstone. With a good roll up and wonderful food, it turned out a top evening out. No doubt we will be looking for another excuse to use this venue again.
All members are notified there will not be a meeting of the Cradle Coast Amateur Radio Club in December, but instead the next general meeting will be on the 30th of January 2010.
If you are a non amateur or a short wave listener living in the North West, or West coast of Tasmania, and would like to become a licenced amateur radio operator, then come along to a meeting and find out about this interesting hobby. If you cannot make the meeting but would like to find out more about the hobby then contact the learning facilitator, Keith Winkler VK7KW, or any of the committee members.
Full contact details are available on our website which can be easily found by a "Yahoo" or "Google" search of CCARC TASMANIA
So don't forget, no meeting until January 30th.
(David, VK7DC, Secretary, CCARC)
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Southern News
Radio and Electronics Association of Southern Tasmania
VK7RAD Maintenance and Upgrade
Please note that from after the broadcast today until Wednesday the 16th December Repeater Two VK7RAD on 146.700 will be off the air.
This will enable the installation of a CTCSS tone board to overcome the interference that this repeater has been experiencing.
From Wednesday VK7RAD will require a CTCSS tone of 141.3Hz to access the repeater.
(73, Dave, VK7DM, REAST Repeater Officer)
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2010 Centenary Callbooks
REAST has received it＊s order of 2010 W.I.A. Centenary Call Books.
If you would like a copy then please put your name on the white board at the club rooms or come along to a Wednesday night and Gavin VK7HGO will have copies for purchase.
(73, Gavin, VK7HGO, REAST President)
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Education and Training
Reg VK7KK, the REAST Learning Organiser would like to congratulate the following people who all passed the requirements for their Foundation Licences last week:
Geoffrey Gibbon, Peter McHugh, David Bennett, Alex Whiteside, George Parramore, David Blair and Stuart Marshall.
Paul Hanson also passed his Standard licence last Monday night.
We look forward to hearing all these people on air with their new callsigns in the very near future.
http://reast.asn.au/events.php#FoundationLicenceCourse
(73, Reg, VK7KK)
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ATV Experimenters Night
Thanks to all the people who came along last Wednesday night and helped with starting to put the ATV studio back together especially Paul VK7FPAH, Ken VK7DY and Anders VK7FAJM.
We were able to put the duct work for the transmitter coaxes and dismantle the false ceiling in the repeater room.
The racks are now in place and equipment can be installed and wired semi-professionally.
We will be continuing to put the ATV studio back together over the next few weeks and will be back on air in the New Year.
So, if you would like to learn how it all works, the next few ATV night would be a great learning experience.
See you this Wednesday night starting around 7:30pm.
Hope to see you along.
http://reast.asn.au/events.php#ATVnights
(73, Justin, VK7TW)
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Satellite News
Magnetic Flip Experiment Aboard AO-51 Successful
Since its launch AMSAT-Echo AO-51 has carried a spacecraft attitude adjustment experiment which was tested for the first time last week.
The experiment contains a "reversible" magnet which will align the spacecraft with Earth's magnetic field.
On the December 2, 2242 UTC pass of AO-51 AMSAT-NA VP Operations Drew Glasbrenner, KO4MA issued the command to reverse the magnet and "flip" the orientation of the satellite. The first effect of the experiment was expected to be some changes in signal levels and patterns. AO-51's 435 MHz downlink was expected to become slightly weaker in the northern hemisphere and slightly stronger in the southern hemisphere.
ZL2BX reported, "With two usable passes over ZL last night the most notable feature was the frequent polarity shifts. Certainly good strong signals but difficult to tell how it compares to previous signal levels."
IW4DVZ reported results from a contact with EI8JB, "For me nothing changed, I received from AO-51 the same strong signal as usual."
W6ZKH reported the only difference were frequent polarity changes. The signal strength here on the West Coast seemed to be the same as before.
Tom Clark, K3IO offered an explanation for the received signal changes, "Since angular momentum must be conserved when you "flip" the spacecraft it should precess (probably looking like tumbling) until the momentum dampers absorb the change. Keep an eye on the solar panel currents and I'll bet the spin rate will change."
Drew concluded, "We are still sifting through the telemetry, but as Tom suggested in his email, the satellite is precessing (wobbling) quite severely. This will calm down as the hysteresis rods do their job. Initial reports from Australia and New Zealand indicate stronger signals, and about the same from South Africa. There are some peculiar things about the magnetic field near South Africa, so that doesn't surprise me too much, but is worth digging into once we get the whole orbit telemetry down."
The AO-51 Command Team appreciates any signal reports or observations for the next few days that you can email to ao51-modes(AT)amsat.org or ko4ma(AT)amsat.org. In a week or so the Command Team expects to re-orient AO-51 back to its original attitude.
Twitter users can receive tweets from the AO-51 command team at http://twitter.com/AMSAT or by adding "AMSAT" to your follow list.
http://amsat.org/mailman/listinfo/ans
(AMSAT News Service)
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ACMA News
Radiocommunications licensing arrangements proposed for in-flight mobile communication services on aircraft
On the 8th of December 2009 the Australian Communications and Media Authority released a discussion paper containing proposals for the establishment of radiocommunications licensing arrangements for in-flight mobile communication on aircraft.
＆In-flight mobile phone services are increasingly available to air travellers around the world,＊ said Chris Chapman, Chairman of the ACMA.
＆In 2007 the ACMA took the regulatory lead on this initiative by approving a trial of in-flight mobile communications on a single Qantas aircraft on domestic routes. In view of the success of the trial and service announcements by Qantas and Virgin Australia, the ACMA is now proposing radiocommunications licensing arrangements that would allow in-flight mobile communications services on Australian aircraft.＊
To date, neither Qantas nor Virgin Australia has indicated an intention to introduce in-flight voice calls, but both have however announced plans to offer SMS and data services, subject to the ACMA making appropriate regulatory arrangements.
The ACMA is proposing that in-flight mobile communications on aircraft be authorised and licensed by:
﹞ third party agreements with spectrum licensees for airspace above geographical areas where frequencies are spectrum licensed; and
﹞ apparatus and class licensing in areas where frequencies are not spectrum licensed.
The proposed licensing arrangements reflect the ACMA＊s unequivocal commitment to protecting existing terrestrial mobile services from interference while allowing for the use of new technologies and innovative services such as mobile communication services on aircraft.
The ACMA is also very cognisant of the need to work in harmony with aviation safety requirements.
Take a look at the links on the email and internet editions of this broadcast for the discussion paper and associated documents.
A copy of the discussion paper and associated documents can be obtained from the ACMA website or by emailing Licence&Numbering Development(AT)acma.gov.au.
Submissions should be provided to the ACMA by 29 January 2010.
(ACMA Media Release 8 Dec 2009)
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History News
Television Earns Pair of IEEE Milestones
The following story was written by Anna Bogdanowicz and appeared on the IEEE ※The Institute§ Website.
The TV set has become a standard household appliance for many. It＊s estimated that about 2 billion people around the world own at least one television. Two early achievements that helped make the television the popular device it is today are being honoured with IEEE Milestones in Electrical Engineering and Computing: the development of electronic television and the first transpacific TV signal telecast via satellite.
The development of television is credited to a number of individuals. These latest Milestones honour breakthroughs made by Japanese innovators.
SPINNING DISK
The first recognizes Kenjiro Takayanagi, whose work from 1924 to 1941 helped pave the way for the development of modern television in Japan. He built the world＊s first all-electronic TV system. Although Takayanagi didn＊t receive much global recognition, he is known as ※the father of Japanese television.§
The first TV sets depended on a mechanical device. German inventor Paul Nipkow received the first patent for a TV-like machine in 1884. It was actually a hybrid system of mechanical and electromechanical components. It was referred to as mechanical TV only after the development of all-electronic systems. The distinguishing feature of mechanical TV is the Nipkow disk, which had a series of holes arranged in a spiral. To transmit an image, an electric motor would spin the disk, and bright light would be sent from the camera through each hole to focus on a different part of the subject being broadcast. Photoelectric cells would transform the lines of light reflected off the subject into electrical signals, which were then sent to a receiver. At the receiver, the signals were converted back into lines of light. A complete picture of the subject was produced by a stack of lines, which appeared to the viewer as a continuous picture because of a phenomenon known as the persistence of vision. Images tend to remain in the brain for a fraction of a second after they are perceived.
But mechanical TV had several problems. Very bright light was needed to produce a strong enough electrical signal for transmitting the images. Nevertheless, the broadcast appeared so dimly on the receiver that images could be viewed only in a darkened room. By the mid-1920s, Takayanagi and other engineers had begun researching a better alternative.
Electronic television works by broadcasting moving pictures out of a fast stream of still pictures, each one slightly different from the one before it. A TV camera breaks each still picture into tiny lines and pixels and sends them to a transmitter that converts them to signals and sends them to a receiver. The signals control an electron gun in the receiver that shoots out electrons, which hit a picture tube coated with phosphors, causing them to glow. The gun sweeps across the screen, hitting row after row of phosphor pixels with electrons. It all happens so quickly that it appears as one continuous picture to the human eye.
In 1924, Takayanagi, who taught at Hamamatsu Technical College (now the Faculty of Engineering at Shizuoka University), began experimenting with electronic television. He had become interested in the medium after reading about it a few years earlier in a French magazine. He developed a system using a Nipkow disk to scan a subject and generate electric signals. However, unlike others, Takayanagi took the pioneering step of using a cathode ray tube to display the received signal. On 25 December 1926, Takayanagi successfully demonstrated his system at his school by transmitting a Japanese katakana character. In 1935, he developed Japan＊s first all-electronic television.
A ceremony is scheduled for 12 November at Shizuoka University, with a plaque to be placed beside a bronze statue of Takayanagi in front of the university＊s Electronics Research Institute. The inscription reads:
※Professor Kenjiro Takayanagi started his research program in television at Hamamatsu Technical College (now Shizuoka University) in 1924. He transmitted an image of the Japanese character 奶(i) on a cathode-ray tube on 25 December 1926 and broadcast video over an electronic television system in 1935. His work, patents, articles, and teaching helped lay the foundation for the rise of Japanese television and related industries to global leadership.§
TRANS-PACIFIC SIGNALS
Today we can watch live TV pictures from around the world. But more than 45 years ago, video clips from opposite ends of the Earth had to be transported on airplanes, taking days to be broadcast. The second IEEE Milestone honours a breakthrough that helped change that.
In the early 1960s, telecommunications between the United States and Japan relied on narrow-band coaxial submarine cables and high-frequency radio signals. In 1962, the first successful transatlantic TV relay〞between Maine and England〞was made via the Telstar 1 telecommunications satellite. The transmission, which also earned an IEEE Milestone, created a craving in Japan for transpacific satellite communications〞especially because the country was preparing for the 1964 Summer Olympics in Tokyo and hoped to broadcast the events around the world. Government officials and engineers from Japan＊s major telecommunications companies, including KDD (now KDDI), Nippon Telegraph and Telephone, NEC, and Mitsubishi Electric, teamed up to build the country＊s first satellite communications center to televise the Olympics. In 1963, the engineers completed the Ibaraki Satellite Communication Center, which communicated with NASA＊s Relay 1 satellite via the world＊s first Cassegrain antenna.
The first U.S.-Japan satellite telecast from the center took place that year, on 23 November. It was to be a prerecorded address from U.S. President John F. Kennedy to the Japanese people. Tragically, Kennedy was assassinated, so an announcement of his death was the first transmission. Almost a year later, the Olympics were successfully broadcast from Japan to the rest of the world.
The Ibaraki center continued to play a key role for decades as the gateway for communications between Japan and the United States as well as countries along the Pacific Rim. In the late 1990s, satellite communications gave way to underwater high-capacity fiber-optic systems.
A ceremony is scheduled for the anniversary of the TV signal transmission〞23 November〞and a plaque is to be placed in the Ibaraki center＊s exhibition hall. The plaque＊s inscription says:
※On 23 November 1963, this site received the first transpacific transmission of a TV Signal from Mojave earth station in California, U.S.A., via the Relay 1 communications satellite. The Ibaraki earth station used a 20m Cassegrain antenna, the first use of this type of antenna for commercial telecommunications. This event demonstrated the capability and impact of satellite communications and helped open a new era of intercontinental live TV programming relayed via Satellite.§
For more information take a look at the links on the email and internet editions of this broadcast.
http://www.theinstitute.ieee.org/portal/site/tionline/menuitem.130a3558587d56e8fb2275875bac26c8/index.jsp?&pName=institute_level1_article&TheCat=1008&article=tionline/legacy/inst2009/nov09/history.xml&
http://www.ieee.org/web/aboutus/history_center/milestones_intro.html
(Sourced from the IEEE ※The Institute§ Website)
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Web & Email Edition Extra Bits!!
Genesis SDR Radio Kits
http://www.genesisradio.com.au/
New VK Assessors Yahoo Group
http://au.groups.yahoo.com/group/AustralianAmateurRadioAssessors/
Philips introduces solar-powered LED football floodlights
http://www.ledsmagazine.com/news/6/12/5?cmpid=EnlLEDsDecember92009
The 2009 Geminid Meteor Shower
http://science.nasa.gov/headlines/y2009/08dec_geminids.htm
Strange Lights from Russian Missile Launch over Norway
http://spaceweather.com/archive.php?view=1&day=10&month=12&year=2009
Large Iceberg heading toward Australia
http://www.sciencealert.com.au/news/20091012-20382.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencealert-latestnews+%28ScienceAlert-Latest+Stories%29
ABC - Surfing Scientist: Christmas Napkin Siphon Trick - Christmas is the perfect time for a very slow dinner table science trick to amuse yourself until the turkey is gone.
http://abcmail.net.au/t/738409/957242/14608/0/
The following links are courtesy of CG Communicator:
Novell Cell Base Station Mounting Arrangement ??
http://www.baseballdogs.com/ORcell.html
All you ever need to know about the Internet
http://www.livinginternet.com/ttoc_site.htm
This is one adrenaline-packed trip down a mountain road -- a video you are not soon to forget: http://www.gamaniak.com/video/3625 (this is awesome!!!)
Robotic flutist and saxophonist get together for a classical duet. Check out the lung action of the flutist. Perhaps next year the saxophone will be in tune: http://tinyurl.com/ClassicalDuet
Yamaha's Avant Grand piano is said to mimic both the sound and feel of an acoustic: http://tinyurl.com/YamahaSynthetic
Troubleshoot those Christmas Lights
http://www.lightkeeperpro.com/
Do you have some interesting internet sites you have some across in the last week 每 send them in to justingc(AT)ozemail.com.au
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VK7 Regional News Group Email Addresses
Post message: vk7regionalnews(AT)yahoogroups.com
Subscribe: vk7regionalnews-subscribe(AT)yahoogroups.com
Unsubscribe: vk7regionalnews-unsubscribe(AT)yahoogroups.com
List owner: vk7regionalnews-owner(AT)yahoogroups.com
VK7 Virtual BPL Tours
http://www.youtube.com/watch?v=pdcY0Eetvsw - Mt Nelson
http://www.youtube.com/watch?v=1gsxpya3CnQ - North Hobart
http://www.youtube.com/watch?v=G7DfdxjRkpU - RU ready for BPL?
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If you are interested in becoming an amateur radio operator or upgrading your licence then we suggest you contact your local club for details and/or take a look at what the Radio and Electronics School has to offer. They have a range of courses that can be delivered through a variety of methods.
They can be found at: www.radioelectronicschool.com
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Finally today, a reminder to those people rostered for next week＊s broadcasts:
Newsreader: VK7IR
160m: VK7DM
80m: VK7TW
40m: ??
20m: VK7IL
10m: VK7ZGK
UHF CB: VK7HGO
HF CB: VK7TED
Thanks to all people and organisations who assisted with this broadcast.
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THAT CONCLUDES OUR VK7 REGIONAL NEWS BROADCAST FOR THIS WEEK.
YOU HAVE BEEN LISTENING TO OR JUST MISSED VK7WI. NEXT WEEK THE NATIONAL WIA NEWS CAN BE HEARD AT 0900 FOLLOWED BY THE VK7 REGIONAL NEWS AT 0930 HOURS.
DETAILS TO SEND NEWS FOR THIS BROADCAST CAN BE FOUND AT REAST.ASN.AU AND THE DEADLINE FOR ITEMS IS 21:00 ON FRIDAY PRIOR TO THE SUNDAY OF THE BROADCAST.
VK7 Regional Broadcast & News Coordinator
Justin Giles-Clark, VK7TW
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- NEWS POSTING TO PACKET -
Courtesy Tony VK7AX VK7AX(AT)VK7AX.#ULV.TAS.AUS.OC
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