Using the Pluto and RPi4 for Amateur TV and narrowband – Noel G8GTZ.
Following on from his “Advances in Amateur Television” talk at the 2017 RSGB convention, Noel Matthews, G8GTZ will be presenting on the latest developments in the ever-evolving world of Amateur TV.
Noel will give an overview of ATV activity in the UK and in particular how the use of Reduced bandwidth (RBTV) signals has enabled ATV QSOs on the lower VHF bands. He will give an introduction to the QO100 geostationary satellite which has enabled QSOs with fellow DATV operators as far away as Brazil, India and South Africa.
Noel will also be describing how the development of Software Defined Radio (SDR) based hardware and powerful single board computers such as the Raspberry Pi has revolutionised the development and capabilities of amateur radio dedicated products.
He will describe how it is possible for radio amateurs to build an advanced touch screen multimode narrowband and Digital ATV transceiver covering 50 MHz to 10GHz for under £350.
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As part of the national “Get on the air to care” campaign with the NHS, the RSGB Tonight @ 8 series of live webinars cover a range of topics and help you gain more enjoyment from amateur radio.
Tonight @ 8 webinars are live-streamed, allowing you to watch the presentations and ask questions online. They can also be viewed on a later date on the RSGB website and YouTube.
Info : https://rsgb.org/main/tonight-at-eight-live-webinars/
Het is helaas niet gelukt om tijdig een andere spreker te vinden die een online webinar kan/wil verzogen.
De geplande activiteit gaat dus NIET door.
Clubavond van de afdeling Zuid-Limburg van de VERON.
In verband met de situatie rondom Corona zal deze avond weer via het online Jitsi kanaal gehouden worden.
Ga naar : https://meet.jit.si/VeronA22Meeting
73 Tom Koeken PC5D
voorzitter A22
How to get started in software construction and where it can lead you – Heather M0HMO.
All you need to get started in Software construction is a personal computer (Windows, Linux, Mac – they’ll all do), some spare time and, if you want to make a ‘thing’ then some loose change.
There are three easy and virtually free routes into writing your own programs: develop applications that run on your PC using the free Qt environment; write programs to run on one of the Arduino boards (£3 from China plus a USB cable) using the free Arduino application; or go for the middle ground with a Raspberry PI (around £40) and a wi-fi connection.
Heather will take you through the setup for each of these and show you just how easy it is to go from flashing an LED through developing an ATV receiver to producing a fully-featured windows PC application such as her Mapper entry in the RSGB construction competition.
Find out more
https://www.arduino.cc
https://www.raspberrypi.org
https://www.qt.io
https://github.com/
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As part of the national “Get on the air to care” campaign with the NHS, the RSGB Tonight @ 8 series of live webinars cover a range of topics and help you gain more enjoyment from amateur radio.
Tonight @ 8 webinars are live-streamed, allowing you to watch the presentations and ask questions online. They can also be viewed on a later date on the RSGB website and YouTube.
Info : https://rsgb.org/main/tonight-at-eight-live-webinars/
Deze avond zal Ernst PA1EJO een online lezing verzorgen over “Storingen veroorzaakt door PV installaties (zonnepanelen).
Dit beloofd weer een interessante avond te worden.
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Zoals voorgaande lezingen zal ook deze weer gehouden worden via Jitsi, met als adres : meet.jit.si/pi3zlb
Ga op de avond van de lezing in een moderne webbrowser naar de url.
NB dit is dezelfde url die ook voor de streaming van de zondagochtendronde wordt gebruikt.
Om 20.00 uur willen we met de lezing starten, maar voor wat laatste checks m.b.t. de ICT instellingen is het virtuele zaaltje al eerder toegankelijk.
Jaarvergadering van de afdeling Zuid-Limburg van de VERON.
Deze zal wederom online plaatsvinden via een videoconferentie op Jitsi.
Deelname alleen voor leden.
Verdere details worden door het bestuur per email naar de leden verzonden.
73 Tom Koeken PC5D
voorzitter A22
The Russian Woodpecker over the horizon radar, a blast from the past – Keith KI6BDR.
Hidden deep in a serene forest yet taller than the clouds, standing in surreal beauty is an antenna array like none other on earth, having an aperture area greater than 15 U.S. football fields. One of the great wonders of the world – a top secret Soviet radar, so secret that even the name is uncertain, for it had many. It was the Russian Woodpecker. It was the Steel Yard. It was Duga.
The story of this top secret place is one of mystery and intrigue. Now abandoned, a rusting testament to man’s cold war hubris, almost all popular accounts on the web are seriously flawed – victims of deliberate disinformation. Where did it come from? What did it do? Did it transmit? Did it receive? Was it the first of three, or the third of two?
Keith Snyder, KI6BDR, has been busy reverse engineering to uncover truth before time erases history. Keith shows visible engineering clues that reveal the mission and correct the history of the huge “Duga 3” antenna Array. The Duga 3 is located a few kilometers from the Chernobyl nuclear power plant site. Although it has fallen into disrepair, it stands today due only to a hasty exit forced by radiation from the
Chernobyl nuclear accident. The nuclear accident ironically protected the array from dismantlement, a reprieve from all but the ravages of time. The antenna array today attracts tourists who visit Chernobyl. It is one of the 8th wonders of the world due to its Titanic size.
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As part of the national “Get on the air to care” campaign with the NHS, the RSGB Tonight @ 8 series of live webinars cover a range of topics and help you gain more enjoyment from amateur radio.
Tonight @ 8 webinars are live-streamed, allowing you to watch the presentations and ask questions online. They can also be viewed on a later date on the RSGB website and YouTube.
Info : https://rsgb.org/main/tonight-at-eight-live-webinars/
Deze avond zal zal Jeroen PE1RXQ een lezing verzorgen over Digital Voice.
De tijd dat zendamateurs voor spraakverbindingen alleen konden kiezen uit FM, SSB of AM ligt achter ons. Tegenwoordig zijn er ook volledig digitale modulatie technieken voor spraak. Sommige daarvan m.b.v. een gesloten protocol of commerciële hardware, andere volledig open source zoals FreeDigitalVoice.
Jeroen is ook voorzitter van de VERON afdeling Eindhoven en heeft naast FreeDV ook met DMR en APRS geëxperimenteerd.
Dit beloofd weer een interessante avond te worden.
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Zoals voorgaande lezingen zal ook deze weer gehouden worden via Jitsi, met als adres : meet.jit.si/pi3zlb
Ga op de avond van de lezing in een moderne webbrowser naar de url.
NB dit is dezelfde url die ook voor de streaming van de zondagochtendronde wordt gebruikt.
Om 20.00 uur willen we met de lezing starten, maar voor wat laatste checks m.b.t. de ICT instellingen is het virtuele zaaltje al eerder toegankelijk.
Na een rondvraag via email is besloten om in februari weer fysiek bij elkaar te komen.
Op dit moment (maandag 14 feb) zijn de overheidsmaatregelen zodanig dat ’t Weverke tot 22.00 uur open is.
De gebruikelijke 4e donderdag zou samenvallen met eventuele carnavals activiteiten die in beperkte mate weer mogelijk kunnen zijn door de te verwachten versoepelingen. De afdeling heeft daarom besloten om de clubavond te verplaatsen naar donderdag 17 feb. vanaf 19.30 tot 22.00 uur in ’t Weverke. We kunnen dan goed terecht in een van de zalen.
73 Tom Koeken PC5D
voorzitter A22
The bluffer’s guide to digital voice – Tim GW4VXE.
Tim will provide a quick overview of the most common digital modes (D-STAR, DMR and Fusion) as well as some of the less common modes. Tim will explain how you might use them.
Which mode is the best? Tim will look at code-plugs and hotspots and try and demystify some of the jargon for you.
Technology permitting, he’ll try and do a demo with the chance for a little audience participation. Rather than being a heavy session, the emphasis will be on light but informative content.
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As part of the national “Get on the air to care” campaign with the NHS, the RSGB Tonight @ 8 series of live webinars cover a range of topics and help you gain more enjoyment from amateur radio.
Tonight @ 8 webinars are live-streamed, allowing you to watch the presentations and ask questions online. They can also be viewed on a later date on the RSGB website and YouTube.
Info : https://rsgb.org/main/tonight-at-eight-live-webinars/
