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VK7AX > BCAST 01.06.22 20:30z 420 Lines 20674 Bytes #999 (0) @ WW
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Subj: VK7 Amateur Radio News 29May22
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VK7 Amateur Radio News 29May22
Text edition:
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VK7 AMATEUR RADIO NEWS BROADCAST
FOR SUNDAY 29th May 2022
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Welcome to the VK7 Amateur Radio News for the 29th May 2022. At the mike of VK7WI this week is Justin, VK7TW.
This broadcast goes out on repeaters all over VK7 and on digital radio - DMR Talk Group 5 and D-Star Reflector 91C by Clayton VK7ZCR.
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 Garry, VK7JGD
On 7.140 MHz by Dale, VK7DG
On 14.130 MHz by Peter, VK7TPE and
On 28.525 MHz by Tony, VK7VKT
We also go out on UHF CB Channel 15 thanks to Mark VK7FMAC in the Hobart area.
You can hear this broadcast again on Tuesday night at 8:00pm on repeaters VK7RAA in Northern VK7 and VK7RAD in Southern VK7.
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VK7 HamFest News
Biennial Miena Hamfest
The Miena Hamfest 2022 is being held on Saturday the 19th November.
It will be held at the very well appointed (and heated) Great Lake Community Hall at Miena in the central highlands of Tasmania.
We have all amateur radio clubs in VK7 involved in the organising group to promote this as the pre-eminent biennial VK7 Hamfest.
Do you have ideas to make the Hamfest an even better event? Would you like to see something in particular at the Hamfest - let us know at vk7arnews(at)gmail.com.
We are talking with many suppliers to try and get them down and bring lots of goodies! There will also be pre-loved tables available.
BBQ lunch will also be available for purchase and a raffle with some very nice prizes will also be on offer.
Mark it in your diary and make it a day out in the highlands.
More details as they come to hand.
73, Hamfest Organising Group.
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QSL News
Report - from Herman VK7HW Manager of the WIA VK7 Inwards QSL Bureau
The current list of QSL Cards held as at 27 May 2022 is in the email version of the broadcast.
Herman was recently asked what the standard size of a QSL card should be.
Amateurs are asked to keep the size of QSL cards to a single 'page' within the ITU guidelines of 140mm x 90mm .
If you have any questions re QSL cards, please contact Herman by email vk7bureau(at)wia.org.au
73, Herman, VK7HW, WIA Manager VK7 Inwards QSL Bureau
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VK7 Inwards QSL Cards held as at 27 May 2022
A, AAA, AAB, AB, ACN, AD, AG, AIR, AL, AM, AO, AP, APZ, AS, ATH, AV
BA, BB, BEN, BM, BPV, BT, BYE
CJ, CL, CV, CX
DG, DM, DN, DO, DQ, DZ
EE, EG, ER
FALX, FAZZ, FCIA, FG, FGGT, FJFJ, FLAR, FRJG(RG), FTAS
GA, GC, GM, GR, GZ
HCH, HDM, HOB, HL, HRS, HSA, HSJ, HVK, HZ
IAN, IK, IS
JA, JCR, JJ, JJJ, JOK, JP, JW
KBA, KD, KDO, KJ, KKR, KL(KI ?), KO, KR
LAZ, LDH, LLL, LM, LT, LTD, LVH
MAG, MAT, MBD, MET, MHZ, MS
NA, NC, NRF, NSB, NSE, NTE, NWQ
OB
PBD, PRN, PSJ, PW
QK
RG(FRJG), ROY
SN, SV
TCE, TED, TK, TU
UT
VA, VAC, VAZ, VDC, VH, VR, VZ
WA, WC, WIA, WT
XDM, XTC
YN
ZA, ZM, ZT, ZX, ZZ
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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
At the time of writing, the NTARC Safety Communications Team is at Wattlewood Park, Sassafras on an Equine Endurance Ride. We traveled down this morning, Friday and have established our Ride Base, set up a 2 meter and 70cm repeater for voice and data communications, located some new check points and tested communications to their locations where we could. The first ride of the single day event starts at 07:00 Saturday morning, at least this is a civilised time and much better than the 03:00 night starts. It does look as though it is going to be a fairly cold start though. Thanks to Roger VK7ARN, Lewis VK7IT, Peter VK7KPC, Idris VK7ZIR, Andre' VK7ZAB and Stefan VK7ZSB, at least the setup is complete. With Peter being the only one tough enough to camp the night at ride base, the rest of us softies returning Saturday morning. If it is Sunday when you hear this then hopefully we are packing up and making our way back to Launceston. An update to follow in the next broadcast. Well done all.
From around the traps and based on some feedback I have received, it seems the REAST held Peter Parker VK3YE, QRP presentation last Wednesday evening was indeed a great session and well worth the drive from Launceston. A little bird told me he, or she thinks they saw Justin VK7TW with a video camera, fingers crossed as this is one your reporter would also like to catch up on.
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 Andre' at coffee mornings or at the technical night. 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.
UPCOMING EVENTS
Club Technical night Wednesday 1st June. Held at the NTARC Club rooms, 7.30pm until whenever.
Club General Meeting Saturday 4th June. Held at the NTARC Club Room, Rocherlea Scout Hall, Archer Street, Rocherlea. Meeting commences at 2pm. Please note this one has been brought forward so as not to clash with the Queen's Birthday long weekend.
TestNet and TechNet Wednesday 8th June. 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 again be Nic VK7WW.
Malcolm White Presentation Wednesday 15th June about 20:00. Past CEO of TasTAFE and currently Chair of Governance at The Royal Flying Doctor Service, he was a licensed amateur at an early age, and is also an aficionado of CW. The presentation will be on his association with Ray Naughton VK3ATN, at the time of Ray's pioneering Earth Moon Earth (EME) achievements in the 1960s on the 2 metre band.
Coffee Morning held every Friday in the NTARC Club rooms. Catch up time is from 10am to noon and we look forward to seeing you all there. These coffee events represent a good opportunity to collect your QSL cards. We currently have cards awaiting collection, so why not pop in and check the QSL box and join us for a cuppa and chat.
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.
That's 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/
Six Winning Ways to Make Contacts Wrap-Up
Last Wednesday night we were lucky to have QRP Guru - Peter Parker VK3YE give us a presentation and share his vast QRP radio experience.
The presentation called 6 winning ways to make contacts on HF explored the following ways to make contacts.
Number one - firstly you can tune or scan across the band, hear someone calling CQ (a general call to all hams) and reply.
Secondly you could be tuning around but be looking for a conversation in progress. Then wait for it to finish then call one of the stations involved. That's called 'tail-ending'.
Another option is to join a round-table net conversation where they call for check ins, that is people wishing to join.
If there's not much happening you can call CQ. That's Option 4. CQ is a general call inviting others to respond. Calling CQ is a distinct thing about ham radio and contributes to its openness compared to other electronic communication. For instance people don't make random phone calls unless they are trying to sell something.
Number five - less preferred is to break in to an existing conversation. That certainly works if you're impatient but there can be problems. More on that later.
Finally you can set up an appointment or, as hams call it, a sked. That's where you arrange with someone to be on a particular frequency at a particular time.
Peter then did a promo of his award winning books and the great deal he has struck with Haverfords to get 10% off the cost of fibreglass squid poles.
Peter then finished with questions.
A huge thank you to Peter for the presentation and it is available at the REAST YouTube channel.
https://www.youtube.com/watch?v=h4bggZ-27Ec
https://vk3ye.com/
(73, Justin, VK7TW)
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June Presentation Night -
Marine Scientific Electronics - An Insight
https://fb.me/e/4BX30lsCH
Our June presentation night will be held on June 22nd 2022.
It will focus on marine and scientific electronics and many of the techniques used in this fascinating area.
Our presenter is Kim Brigg VK7KB from the Australian Antarctic Division.
Kim will bring with him many pieces of equipment that have been created at the AAD for many of the experiments the Division has undertaken over the years.
The presentation will get underway at 7:30pm in the Queens Domain clubrooms.
See you there.
73, REAST Committee
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Re-broadcasts on VK7RAD
Whilst VK7RTC is out of action Harry VK7HXT has volunteered to put the Sunday broadcast - rebroadcasts on a Tuesday night at 8pm and the RAOTC broadcast on the first Tuesday night of the month at 8pm on VK7RAD. Harry looks forward to your callbacks.
73 Harry VK7HXT
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Training and Assessments
REAST's next Foundation Licence training and all licence assessment day is next Saturday the 23rd July 2022.
If you are thinking of coming along then please let Reg Emmett VK7KK REAST Learning Organiser know by phoning 0417 391 607 or email assessor(at)reast.asn.au.
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
And checkout the REAST Facebook page events for further details.
https://fb.me/e/1YiYqV2wC
73, Reg, VK7KK
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DATV Experimenter's Night
https://fb.me/e/2suL6uBUE
Our first DATV Experimenter's night for June 2022 is on the 1st and will be in the clubrooms and get underway from 7:30pm.
We will have Garry VK7JGD in the studio taking us through the details of common configuration items on a Yaesu FT-897.
We will then have Peter VK7KPC via Zoom from Lonnie with some very interesting military morse keys along with a review of the latest AR Magazine and much more.
Why not come up and see what we get up to.
We will be streaming the nights on the REAST YouTube channel.
https://www.reast.asn.au/news-events/live-stream/
https://www.reast.asn.au/special-interest-groups/amateur-tv/
We go out on RF on 445.5MHz DVB-T 7MHz Standard Definition. 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. We also stream the nights on the REAST YouTube channel.
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/
73, Justin, VK7TW
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Technology News
Scientists find the speed limit of computer chips: one million gigahertz
The fastest signal transmission theoretically possible by microchips is one petahertz, or one million gigahertz. To put it into perspective, that's 100,000 times faster than today's most advanced transistors. That's good news for Moore's Law, suggesting there's still much room for progress in the future although it's not clear if this speed limit can actually ever be reached.
What the fastest microchips might look like a century from now
Microelectronics engineers usually have two main design pathways they can take to make computers process information faster. One is making transistors as small as possible and cramming them into an integrated circuit. The advantage this brings is that the distance between the transistor is minimal so the electrical signal shuttled to and fro takes the least time to complete. Theoretically, you can miniaturize transistors until you reach the size of an atom. An integrated circuit cannot be physically smaller than this.
The other approach is speeding up the switching signals of the transistors. A transistor is a semiconductor device that can open or close a circuit, similar to how a nozzle regulates the water flow from pumps. Switching between open and closed states allows the transistor to transmit digital information, and the faster the switching frequency the better.
The faster you want to go, the more high frequency the electromagnetic signal has to be and at some point we come into the range of the frequency of light, which can also be considered or used as an electromagnetic signal, explained Martin Schultze, the lead author of the new study and head of the Institute of Experimental Physics at the Graz University of Technology in Austria.
Using high-frequency light to achieve faster data transmission comes with its own challenges, though. When light hits a semiconductor material, the photons' energy excites electrons from the valence band (where electrons normally reside), temporarily changing the material's state from an insulator to a conductor. However, the excitation energy threshold of most semiconductors needed to achieve this effect is impractically low.
This limitation can be overcome by using dielectric materials, such as glass or ceramics, which require much more energy to be excited compared to semiconductors. More energy is better because more light energy implies faster data transmission. The only problem is that dielectric materials are usually brittle and break when an electromagnetic field is applied.
For their experiment, the researchers from Graz used lithium fluoride, a special kind of dielectric material that has the largest bandgap of all known materials this is the distance between the valence band and the conduction band. The material was subjected to an ultra-short laser pulse with ultraviolet frequencies. The high energy from the laser briefly turned the lithium fluoride into an electrical conductor.
By analyzing the measurements of the laser pulses, the researchers concluded how long one has to wait until the material can be exposed to the next signal basically, its maximum switching speed. This is how they learned that one petahertz is the absolute upper limit for an optoelectronic controlled transistor, although the physicists themselves arenâ€Öt sure that technology will ever come close to this limit for practical applications.
The findings appeared in the journal Nature Communications.
https://www.zmescience.com/science/scientists-find-the-speed-limit-of-computer-chips-one-million-gigahertz/
Written by by Tibi Puiu and sourced from the ZME Science Web e-zine.
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Technology News
Stratospheric Platforms announced first 5G transmission from space
Stratospheric Platforms UK maintained the first 5G transmission from the stratosphere for five hours at a height of nearly 14 kilometres, achieving a download speed of 90 Mbps to a retail smartphone.
The landmark telecoms trial was run in collaboration with the Saudi Communications and Information Technology Commission in the airspace above The Red Sea Project. Engineers connected to the local telecoms network, completing tests between a 5G base station, flying stratospheric antenna and retail mobile devices. The trial projected a 5G signal to an area of 450 square kilometres, proving the technology can achieve mobile download speeds comparable to terrestrial 5G networks and at significantly lower cost.
The joint team established three-way video calls between the land-based test site, a mobile device operated from a boat and a control site located 950 km away. Further land and heliborne tests demonstrated a user could stream 4K video to a mobile phone with an average latency of 1 millisecond above network speed. Signal strength trials, using a 5G enabled device moving at 100 km/h, proved full interoperability with ground-based masts and a consistent five bars in known white spots.
The first successful demonstration that a high-altitude platform can deliver 5G internet from the stratosphere means that mobile users can look forward to the capability of 5G mobile internet, even in the remotest areas of the world.
https://www.criticalcomms.com.au/content/research/news/stratospheric-platforms-announced-first-5g-transmission-from-space-82555376
Sourced from the Critical Comms Web e-zine.
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Regular VK7 gatherings and events over the coming months:
Regular gatherings:
SOTA/WWFF Group Meeting Mondays and Fridays 10.30-12.00 midday at Glebe Gardens Cafe, Henry St, Launceston.
NTARC Friday coffee session – Rocherlea clubrooms Launceston from 10:00am
NTARC - Club Tech nights Wednesday 1st June from 19:30 hours in NTARC Clubrooms.
NTARC TestNet and TECHNET Wednesday 8th June - TestNet/CW course on 3580 from 7pm till 7.30pm and a TECHNET on 3567 from 7.30pm till about 8.30pm.
NW VK7 Wednesday from 2000 local NW Tassie Amateur Repeater Group Net on VK7RMD
NW VK7 - Thursday commencing at 09:30 UTC (20:30 local) - N.W. Tassie 2m DX Net 144.190 USB (upper sideband).
REAST MICROWAVE QSO Party following after the Sunday broadcast on 1296.15 MHz FM.
REAST WAGS Wednesday Afternoon Group meet in the Queens Domain Clubrooms from 12 noon.
REAST DATV Experimenter's Nights from 7:30pm live in the club rooms also on DVBT RF and YouTube Streaming
Sewing Circle Net Daily on 3.640 MHz commences at 5:00pm AEST.
Events:
REAST - 25 May - Six Ways to make Contacts with Peter Parker VK3YE - 7:30pm in Queens Domain Clubrooms.
NTARC - 4 June - Club General Meeting at the Rocherlea Scout Hall, Archer Street, Rocherlea from 2pm.
NTARC - 15 June from 8pm - Malcolm White Presentation on Ray Naughton VK3ATN 1960's Earth Moon Earth (EME) achievements. Scout Hall, Archer St Rocherlea.
REAST - 22 June - Marine Scientific Electronics with Kim Briggs VK7KB - from 7:30pm in the Queens Domain Clubrooms
VK7 - 19 November - VK7 Miena Hamfest - Great Lake Community Hall at Miena from 10am.
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A reminder to those people rostered for next week's broadcast:
Newsreader: VK7ZIR
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, and VK7DC
160m: VK7GS
80m: VK7DG
40m: VK7TPE
20m: VK7ALH
10m: VK7JGD
UHFCB15: VK7FMAC
DMR: Talk Group 5 and D-Star: Reflector 91C VK7ZCR
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You can hear this broadcast again on Tuesday night at 8:00pm on repeaters VK7RAA in Northern VK7 and VK7RAD in Southern VK7.
A huge thank you to all people and organisations that assisted with this broadcast.
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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.
VK7WI is now closing but will reopen shortly for callbacks and relay reports. 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 we hope you have a great day, 73 and stay safe from Justin, VK7TW.
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(Posted to the packet network courtesy Tony VK7AX)
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