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VK7AX > BCAST 24.02.24 09:12l 517 Lines 24197 Bytes #223 (0) @ WW
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VK7 Amateur Radio News 25Feb24
Text edition:
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VK7 AMATEUR RADIO NEWS BROADCAST
FOR SUNDAY 25th February 2024
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Welcome to the VK7 Amateur Radio News and this was first broadcast on Sunday the 25th February 2024. At the mike of VK7WI this week is Idris, VK7ZIR.
On Sunday this broadcast goes out on repeaters all over VK7 and on digital radio - DMR Talk Group 5 and D-Star Reflector 91C by Phil, VK3PG & Ross VK7WP.
We go out on medium and high frequency courtesy of the following rebroadcast stations:
On 1.862 MHz by Any Takers,
On 3.670 MHz by Any Takers
On 7.140 MHz by Peter, VK7TPE,
On 14.130 MHz by Ross, VK7ALH,
On 28.525 MHz by Garry, VK7JGD.
UHF CB Channel 24 in the Hobart area - Mark VK7FMAC.
You can hear this broadcast again on Tuesday night at 8:00pm on repeaters VK7RAA in Northern VK7 and VK7RHT in Southern VK7.
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WWFF News
2024 New Parks for VK7
101 new WWFF (Worldwide Flora and Fauna) park/reserve reference areas have recently been added to the VK7 directory which now lists over 300 references ready to be activated.
Thanks to those VK7 amateurâ€Ös that sent in suggestions.
As a reminder, all new WWFF reference areas must fall within the International Union for Conservation of Nature (IUCN) protected area category system.
The list of the new VK7 park/reserves can be found in the WWFF online directory or the WWFFAustralia website and will soon be added to the ParksnPeaks website.
https://www.wwffaustralia.com/
https://www.parksnpeaks.org/
So letâ€Ös dust off the portable gear whilst the weather is still favourable and get amongst these new parks and reserves, I look forward to receiving some logs for upload.
As always, any questions regarding the WWFF program, please donâ€Öt hesitate to ask.
73â€Ös from Andrew (VK7DW)
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Statewide News
QSL Update
Report - from Herman VK7HW Manager of the WIA VK7 Inwards QSL Bureau
If you live near another Amateur and can collect and deliver their cards to their QTH that would be a big help. Let Herman know if you can assist.
The current list of cards held as at 23 February 2024 is in the email version of the broadcast.
If Herman is holding card(s) for you and you would like them mailed to you rather than being delivered on an opportunity basis please send Herman some stamps.
If you have any questions re QSL cards, please contact Herman by email. herman(at)ozemail.com.au
73, Herman, VK7HW, WIA Manager VK7 Inwards QSL Bureau
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Cards held at 16 February 2023 ( Any errors in the listing are mine, Herman sometimes misses culling a call sign)
AAA, AAD, AAH, AAP, AAR, AB, AC, ACE, ACG, ACN, AD, ADE, AED, AG(2014), AGC, AHT, AIR, AJC, AKK, ALZ, AM, ANC, AO, APZ, AS, ATH, AXZ, AY, AZ
BA, BB, BBB, BPV, BT, BYE
CA, CBK, CBR, CEJ, CH/T, CEJ, CJ, CMV, CV, CX
DD, DN, DO, DP, DQ, DY, DZ
EA, EG, EI, EK, ER
FADZ, FALX (alx), FAZZ, FCIA, FF, FG, FGGT, FLAR, FPRN, FRJG(RG), FTAS
GA, GEL, GGZ, GM, GOP, GR, GW
HBR, HCH, HDX, HL, HOB, HRS, HSA, HSD, HSJ, HVK, HZ
ID, IK, IS
JA, JAZ, JCR, JJ, JOK, JP, JW
KAC, KBA, KD, KDO, KI, KJ, KJL, KKR, KL, KO, KRJ
LDH, L J, LL, LLL, LM, LT, LVH, LW
MA, MAG, MBD, MBP, MC, MEL, MET, MHZ, MJ, MRS, MS
NA, NC, ND, NEC, NFI, NIK, NRF, NRT, NSE, NSS, NTE, NVH, NWQ
OB
PAF, PBD, PM, PRN, PSH, PSJ, PSZ, PW
QK
ROY, RJ
SN, STO, SV, SZ
TCE, TED, TK, TL, TO, TS, TUX, TX, TZ
UT,
VA, VAC, VAO, VAZ, VDC, VEK, VH, VR, VTM
WA, WC, WH, WIA, WL, WO, WT, WUU
XDM, XTC, XV, XX
YN
ZA, ZJJ, ZK, ZM, ZT
----------
VI7ALARA Cards for QSO's with VK7's
Note * - There are a few OS cards amongst the ALARA cards for VK7's.
AAE, AC*, ALB
BO*
CMV
DD*, DG*, DHT, DT
EK, EV
FKLW, FMI
HAM, HCK*
IAN, ID
JFD
KAM, KPC, KT, KW
LA
MAT
NB, NET*
OT
PSJ
RG*
STO
TPE
VKT
WN, WUU
YUM*
ZA, ZGK, ZPE
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Statewide News
Thursday Night SSTV Nets
Another busy net night that saw the following participants,
VK7s – FGGT, ZAB, EV, DMH, TW, ZGK, ZSB and KT all sharing
nearly forty photos.
The various subjects were:
A rocket launch
3 kittens and a cat soaking up the warmth of a laptop
A cat mural and murals at Royal Park
Trains – Wilderness railway, a ride-on miniature train, the London Underground and some futuristic trains hanging from a suspended track and driven by a propeller
A Holden 48-215 sedan or more commonly known as a FX at the National Museum of Australia
Novelty vehicles – these being a shoe shaped car for “Him†and a high heel motorbike for “Herâ€
A couple of vintage fire fighting vehicles
A shiny Christmas beetle
A communications tower with dishes and a radio telescope
A weather satellite view over Tasmania showing storm conditions
A Tasmanian home radio shack setup
An outside dunny call “Gotagoâ€
Tasmanian shaped wood carving with an inset analogue temperature gauge
Night shots of the Tasman Bridge and Mt Wellington
And a Homer Simpson brain scan
Remember Ken VK7KRJâ€Ös and Steve VK7OOâ€Ös fully automatic
24/7 monitoring sites that allows anyone who has sent an
SSTV picture the ability to check them on their pages almost
immediately, any time, both South and North Tasmania.
Also if you missed the net there are archives of all SSTV nights.
These photos can be seen on Kenâ€Ös and Steveâ€Ös SSTV websites
or on NTARCâ€Ös website under blogs and arranged as weekly
nets.
There is no theme for next weekâ€Ös net.
https://vk7oo.tasme.com/vhfsstv
https://sstv.vk7krj.com/scrolling%20web%20gallery.html
https://www.ntarc.net/blogs
73 from Andreâ€Ö VK7ZAB
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NEWS FROM THE NORTH
SOTA/WWFF PARKS GROUP
The Summits On The Air/World Wide Flora and Fauna parks group meets twice weekly – Mondays and Fridays 10.30AM till 12.00 at the Glebe Gardens Cafe, Henry Street, Launceston.
For more information contact Al on 0417 354 410.
73, Al, VK7AN
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Northern Tasmanian Amateur Radio Club Incorporated
www.ntarc.net
Now for something completely different - for our club. NTARC will be opening the club rooms on Wednesday the 6 th of March. Not for a normal Technical Night but for a group gathering to watch the REAST presentation on “Space Junk and Amateur Radioâ€. Rather than sit at home watching, feel free to come along and watch it on a large screen TV, in a distraction and stress free environment. With the only stress being which beverage and cake to select while watching. I know itâ€Ös not looking good to receive the DVB/T RF broadcast off air but we should be able to make do with the REAST YouTube streaming service.
Doors will be open by 7:00 pm. It will be intriguing to see how “us†as Amateurs can be of any assistance, I canâ€Öt wait to find out, see you Wednesday.
Mug Order - yes, we are talking about the white mugs for drinking out of, those that have our club logo on one side, personalised with your name and call sign on the other. We are placing another order so if you would like one then please see André at the Friday coffee mornings or at the Wednesday bi-weekly club Technical Nights. Those members who have already requested a mug, please email secretary(at)ntarc.net to
confirm order, and anyone else who wants one please specify what name is to be printed above the call sign.
The final price will be about $12 depending on the eventual quantity ordered.
Additional Discord page - Phil VK7ZPD has set up a discord page that is dedicated to Slow Scan TV or SSTV. Can be used for any SSTV experimentation. Eminently suitable for the State-wide SSTV experimentation on Thursday nights. The page is simply called “sstv-2024†it will give participants the ability to discuss problems or supply information on the images sent. An excellent idea Phil, so if you are experimenting or participating in the SSTV nights and donâ€Öt have access to NTARC Discord, please send
me an e-mail at secretary(at)ntarc.net and I will pass it on.
UPCOMING EVENTS
TestNet and TechNet session - Every Wednesday, TestNet/CW course on 3.580MHz from 7pm till 7.30pm…. and a TechNet on 3.567MHz from 7.30pm till about 8.30pm. Your host for the evening will be Nic VK7WW.
Coffee Morning - held every Friday in the NTARC Club rooms. Time is from 10am to noon and we look forward to seeing you all there. So why not pop in and join us for a cuppa, there is endless tea and coffee along with biscuits available for a donation.
Club Room Technical night session - The next session will be on Wednesday the 28 th of February and will commence at the usual time of 6.30 pm, running through to about 10 pm, at the Club room Archer Street, Rocherlea.
Finally - A reminder to all members that if you have any items of news you would like added to our weekly roundup, no matter how trivial, then please email them to the Secretary at the following address news(at)ntarc.net all items to be received no later than 5pm on the Friday prior to the Broadcast.
Thatâ€Ös all folks,
73 from Stefan, VK7ZSB, Secretary NTARC Inc.
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NEWS FROM THE SOUTH
Radio and Electronics Association of Southern Tasmania
https://www.reast.asn.au/
https://www.facebook.com/reasttas/
https://www.youtube.com/reasthobart/
REAST AGM & SGM Report
Annual General and Special General Meetings
The Annual General Meeting of REAST was held last Sunday with Silent Keys being remembered, reports being received and the election of the 2024 office bearers:
President - Hayden VK7HH, Vice-President - Sean VK7WTF, Secretary/Public Officer - Lance VK7ZA, Treasurer - David VK7DMG, Committee members - Richard VK7ZBX & Justin VK7TW and Auditor - Alan VK7KA.
Ex-officio office holders were also confirmed and they can be found on REAST website on the link in the email edition of this broadcast.
https://www.reast.asn.au/about/committee/
We then moved to a celebration of two long-term REAST members who became Life Members. We heard about the life and contributions of Herman Westerhof VK7HW and Mike Jenner VK7FB and beautiful myrtle-wood life member plaques were presented to each person.
Pictures can be found on the REAST Website.
https://www.reast.asn.au/2024/02/23/2024-reast-life-members/
A huge thank you to everyone who contributed and contributes to the life of the club.
73, REAST Committee
--------------------------------
March Presentation
Space Junk and Amateur Radio
https://www.reast.asn.au/news-events/upcoming-events/?event_id1=2093
REASTâ€Ös March presentation night will be a fascinating presentation from Mars Buttfield-Addison who is a pHd candidate with UTAS and CSIRO.
Since the dawn of the space race, humanityâ€Ös ventures into space have relied heavily on radio technologies and methods. As the infrastructure in space has changed, so too has the RF environment and the infrastructure needed to support activity in spaceâ€öfrom satellite stationkeeping and collision avoidance, to space weather monitoring, to mission control for automated landers and probes. Mars Buttfield-Addison is a computer scientist working with radio telescopes at the University of Tasmania, where she is involved in the adaptation of radio telescopes for increasingly demanding and atypical tasks. In this talk, she will discuss some of the RF infrastructure and processes in use in the space industry today, what Tasmania does to contribute, and where these means fall short globallyâ€öcreating opportunities for coordinated campaigns of smaller instruments to contribute.
This presentation will be held on Wednesday night the 6th March 2024 from 7:30pm in the Queens Domain Clubrooms and it will also go out on DVB/T RF and via the REAST YouTube Channel streaming service.
A huge thank you to Mars who has agreed to come along a share.
See you there.
73, REAST Committee
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April Presentation - Save the Date
The History of UTC and the Leap Second
https://www.reast.asn.au/news-events/upcoming-events/?event_id1=2095
REASTâ€Ös April presentation night will be a fascinating presentation from Peter Pokorny VK2EMR.
This will be a humorous presentation about how universal coordinated time (UTC) came into existence and why we need Leap Seconds.
There will also be a very timely update from WRC â€Ö23 on Leap Seconds as well.
Peter attended the World Radio Conference 2023 with Dale Hughes and is a well verses in the ITU and WRC behemoth as he has been involved many years due to his professional maritime background.
It will be held on Wednesday night the 3rd April 2024 from 7:30pm in the Queens Domain Clubrooms and it will also go out on DVB/T RF and via the REAST YouTube Channel streaming service.
This should be a great night, see you there.
73, REAST Committee
--------------------------------
DATV Experimenter's Night
https://www.youtube.com/watch?v=moqVQe4pvGc
Last Wednesday night we started the night with welcome to the Class Licence & new Assessor Arrangements which kicked off on Monday 19th February.
Justin VK7TW then gave a wrap up of the REAST AGM and SGM and then we moved to Rex VK7MO who clarified and confirmed our world first of a lightning scatter contact on 23cm. After further analysis of all the data - Rex and Brody now think there was only one 23cm contact that was definitely a Lightning Scatter contact.
The others were a combination of aircraft, tropo and meteor scatter across 23cm and 2m. Some of the take home messages were the WSJT-X MSK441 mode does decode aircraft scatter. If you are running 2m & 23cm do a comparison of the timing of ping on both frequencies. Rex left us with some interesting phenomenon that Brody VK3MAP experienced on 2m which they could not explain.
Rex then took us through a wonderful presentation about and article in this monthâ€Ös AR Magazine about Pioneering Women in Amateur Radio where Rex's Mum (and Dad) appear. Phyl Moncur wrote the YL Corner column for AR Magazine for many years and in one of the article wrote an article called “What is a Harmonic†which was written about Rex. Rex only became aware of the article a few years ago. Thanks Rex.
Justin VK7TW finished off with a taster of the Radiacode 103 radiation meter and a short discussion about early gaslight mantles that are impregnated with metal nitrates which used to include radioactive elements.
This week is all about radiation and a deep demonstration of the RADIACODE 103 Radiation Detector - which includes a radiation detector, dosimeter and spectrometer in the same handheld device. So if you can safely bring your radiation sources with you to the clubrooms then bring them along and we will measure and see where the radiation comes from. See you there or on the stream.
https://www.reast.asn.au/news-events/live-stream/
https://www.reast.asn.au/special-interest-groups/amateur-tv/
https://www.youtube.com/c/ReastHobart/
We stream the nights on the REAST YouTube streaming channel and we also go out on RF - DVB-T 7MHz Standard Definition on 445.5MHz. So, if you have a TV, Set-top box or USB DTV Dongle that you can tune and scan 445.5MHz and you can see the Queens Domain, then you have a good chance of receiving the DATV Experimenter's Night Signal. Look out for VK7OTC.
73, Justin, VK7TW
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Training and Assessments
Our next REAST training and assessment day is Saturday 27th April 2024. If you would like to book for the next session then please let Reg Emmett VK7KK REAST Learning Organiser know by phoning 0417 391 607 or via the REAST Website Contact Form.
https://www.reast.asn.au/contact/online-contact-form/
Check out the REAST Foundation Licence Training Videos that can be found on the REAST YouTube Training and Assessment playlist.
https://www.youtube.com/playlist?list=PLsnsP_zjw831mdC6sY4XqavRUY-53ZWUn
73, Reg, VK7KK
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Technology News
Engineers create hack to make automotive radar 'hallucinate'
Engineers at Duke University have demonstrated a system theyâ€Öve dubbed ‘MadRadarâ€Ö for fooling automotive radar sensors into believing almost anything is possible.
The technology can hide the approach of an existing car, create a phantom car where none exists or even trick the radar into thinking a real car has quickly deviated from its actual course â€ö and it can achieve this feat in the blink of an eye, without having any prior knowledge about the specific settings of the victimâ€Ös radar.
“Without knowing much about the targeted carâ€Ös radar system, we can make a fake vehicle appear out of nowhere or make an actual vehicle disappear in real-world experiments,†said Associate Professor Miroslav Pajic, who co-led the research. “Weâ€Öre not building these systems to hurt anyone; weâ€Öre demonstrating the existing problems with current radar systems to show that we need to fundamentally change how we design them.â€
In modern cars that feature assistive and autonomous driving systems, radar is typically used to detect moving vehicles in front of and around the vehicle. It also helps to augment visual and laser-based systems to detect vehicles moving in front of or behind the car.
Because there are now so many different cars using radar on a typical highway, it is unlikely that any two vehicles will have the exact same operating parameters, even if they share a make and model. For example, they might use slightly different operating frequencies or take measurements at slightly different intervals. Because of this, previous demonstrations of radar-spoofing systems have needed to know the specific parameters being used.
“Think of it like trying to stop someone from listening to the radio,†Pajic said. “To block the signal or to hijack it with your own broadcast, youâ€Öd need to know what station they were listening to first.â€
In demonstrating MadRadar, the research team showed off the capabilities of a radar-spoofing system theyâ€Öve built that can accurately detect a carâ€Ös radar parameters in less than a quarter of a second. Once theyâ€Öve been discovered, the system can send out its own radar signals to fool the targetâ€Ös radar. Each demonstration of MadRadar was done on real-world radar systems in actual cars moving at roadway speeds, showcasing its impressive accuracy â€ö if the spoofing radar signals are even a microsecond off the mark, the fake datapoint would be misplaced by the length of a football field.
In one demonstration, MadRadar sends signals to the target car to make it perceive another car where none actually exist; this involves modifying the signalâ€Ös characteristics based on time and velocity in such a way that it mimics what a real contact would look like. In a second and much more complicated example, it fools the targetâ€Ös radar into thinking the opposite â€ö that there is no passing car when one actually does exist. It achieves this by delicately adding masking signals around the carâ€Ös true location to create a sort of bright spot that confuses the radar system.
“You have to be judicious about adding signals to the radar system, because if you simply flooded the entire field of vision, itâ€Öd immediately know something was wrong,†said David Hunt, a PhD student working in Pajicâ€Ös lab.
In a third kind of attack, the researchers mix the two approaches to make it seem as though an existing car has suddenly changed course. The researchers recommend that carmakers try randomising a radar systemâ€Ös operating parameters over time and adding safeguards to the processing algorithms to spot similar attacks.
“Imagine adaptive cruise control, which uses radar, believing that the car in front of me was speeding up, causing your own car to speed up, when in reality it wasnâ€Öt changing speed at all,†Pajic said. “If this were done at night, by the time your carâ€Ös cameras figured it out youâ€Öd be in trouble.â€
The teamâ€Ös research, set to be presented at the 2024 Network and Distributed System Security Symposium in late February, shows that manufacturers should immediately begin taking steps to better safeguard their products.
“These lessons go far beyond radar systems in cars as well,†Pajic said. “If you want to build drones that can explore dark environments, like in search and rescue or reconnaissance operations, that donâ€Öt cost thousands of dollars, radar is the way to go.â€
https://www.criticalcomms.com.au/content/radio-systems/article/engineers-create-hack-to-make-automotive-radar-hallucinate--829805203
Sourced from the Critical Comms Web E-zine
--------------------------------
Regular VK7 gatherings and events over the coming months:
Regular gatherings:
Sewing Circle Net – Daily on 3.640MHz commences at 6:30pm ADST.
Statewide SSTV Net - held every Thursday night via the North/South Link on VK7RAF/VK7RJG from 7:30pm. In the North and North West - VK7RJG on 438.55 -7MHz and in the South - VK7RAF (146.650 -600kHz) CTCSS tone 141.3Hz to link RAF North-South.
State-wide – MICROWAVE QSO Party – following the Sunday broadcast call-back on 1296.15 MHz FM. One group in the greater Hobart area and another in the greater Launceston area.
Then North-south digital contacts on 1296.2MHz using Q65-60B.
Stations in the Launceston area transmitting on the odd minute. Southern stations on the even minute.
SOTA/WWFF Group – Meeting Mondays and Fridays 10.30-12.00 midday at Glebe Gardens Cafe, Henry St, Launceston.
NTARC - TestNet and TechNet sessions every Wednesday night. TestNet/CW course on 3.580MHz from 7pm till 7.30pm…. and a TechNet on 3.567MHz from 7.30pm till about 8.30pm
NTARC Coffee Mornings held every Friday in the NTARC Club rooms. Time is from 10am to noon in the Rocherlea Clubrooms.
NTARC - Club Technical nights - Wednesday the 28th February and will commence at 6.30 pm through to about 10.00 pm, at the Club room Archer Street, Rocherlea.
NW VK7 – Wednesday from 8:00pm local – NW Tassie Amateur Repeater Group Net on VK7RMD
NW VK7 - Thursday commencing at 8:30pm local - N.W. Tassie 2m DX Net 144.190 USB
NW SSTV Nights - Monday 26th February - hosted by Eric VK7EV from 7:30pm using VK7RMD 70cm repeater on Mt Duncan on the 4th Monday in the Month.
Events:
REAST - March 6, 2024 - Space Junk and Amateur Radio with Mars Buttfield-Addison - from 7:30pm in Queens Domain clubrooms.
REAST - April 3, 2024 - History of UTC and the Leap Second with Peter Pokorny VK2EMR - from 7:30pm in the Queens Domain clubrooms.
--------------------------------
A reminder to those people rostered for next weekâ€Ös broadcast:
Newsreader: VK7TW
Repeaters: REAST, NTARC and in the NW thanks to N W T A R C, West Coast Radio Group, Cradle Coast Radio Amateur Radio Club, VK7AX, VK7JH and VK7DC
160m: VK7GS
80m: VK7TPE
40m: VK7ALH
20m: VK7JGD
10m: Any Takers
UHFCB24: VK7FMAC
DMR: Talk Group 5 and D-Star: Reflector 91C VK7ZCR
--------------------------------
You can hear this broadcast again on Tuesday night at 8:00pm on repeaters VK7RAA in Northern VK7 and VK7RHT in the South.
A huge thank you to all people and organisations that assisted with this broadcast.
--------------------------------
That concludes our VK7 Amateur Radio News Broadcast for this week.
You have been listening to or have just missed VK7WI. Next week the National WIA news can be heard at 0900 followed by the VK7 Amateur Radio News around 0930 hours.
Items for the broadcast can be emailed to vk7arnews(at)gmail.com
Further information about the broadcast can be found at the VK7 Amateur Radio News Groups.IO Group.
https://groups.io/g/vk7arnews
The deadline for items is 21:00 on Friday prior to the Sunday of the broadcast.
Callbacks will be taken on the frequency to which you are listening. Relay stations will use their own callsigns during the callback.
On behalf of the VK7 Amateur Radio News Team, 73 and stay safe from Idris, VK7ZIR.
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(Posted to the packet network courtesy Tony VK7AX)
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