feb
7
ma
2022
RSGB webinar Tonight@8 : The Russian Woodpecker @ (online)
feb 7 @ 21:00 – 23:00

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.

=========================

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/

feb
9
wo
2022
Lezing / Webinar – Digital Voice @ (online)
feb 9 @ 20:00 – 22:00

Deze avond zal Jeroen PE1RXQ een online lezing verzorgen over “Digital Voice”.

(meer details volgen later)

Dit beloofd weer een interessante avond te worden.

=======================================================

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.

feb
13
zo
2022
RF Webinar – Ruisfactor meten @ (online)
feb 13 @ 15:00 – 17:00

Programma RF-webinar

13 feb 2022 Meettechniek
PE1FOD
Ruisfactor meten met een Spectrum Analyzer
13 mrt 2022 PA1EJO EMC problematiek en oplossingen voor PV installaties
10 apr 2022 PA3A Smith Chart “Booster”

Eerder gegeven webinars dit jaar

9 jan 2022 Antennetechniek
ON9CVD
Het gebruik en de toepassing van Antennetuners,
en waarom enige achtergrond kennis daarbij onontbeerlijk is!

– Waarom (gebruik)
– Wat (schakelingen)
– Waar (toepassingsgebied)
– Hoe (berekeningen)
– Hoe groot (tuner rendement)
– Hoe meten (enkele methoden)
– Hoe verder (bronnen voor zelfstudie)
23 jan 2022 Actualiteit
PA0HKZ + PA0EHG
Open discussie over de invloeden van de Tonga vulkaanexplosie op de HF banden.

 

mrt
7
ma
2022
RSGB webinar Tonight@8 : Digital Voice @ (online)
mrt 7 @ 21:00 – 23:00

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.

=========================

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/

mrt
13
zo
2022
RF Webinar – EMC en PV installaties @ (online)
mrt 13 @ 15:00 – 17:00

Programma RF-webinar

13 mrt 2022 PA1EJO EMC problematiek en oplossingen voor PV installaties
10 apr 2022 PA3A Smith Chart “Booster”

Eerder gegeven webinars dit jaar

9 jan 2022 Antennetechniek
ON9CVD
Het gebruik en de toepassing van Antennetuners,
en waarom enige achtergrond kennis daarbij onontbeerlijk is!

– Waarom (gebruik)
– Wat (schakelingen)
– Waar (toepassingsgebied)
– Hoe (berekeningen)
– Hoe groot (tuner rendement)
– Hoe meten (enkele methoden)
– Hoe verder (bronnen voor zelfstudie)
23 jan 2022 Actualiteit
PA0HKZ + PA0EHG
Open discussie over de invloeden van de Tonga vulkaanexplosie op de HF banden.
13 feb 2022 Meettechniek
PE1FOD
Ruisfactor meten met een Spectrum Analyzer

 

apr
4
ma
2022
RSGB webinar Tonight@8 : Breaking the big story @ (online)
apr 4 @ 21:00 – 23:00

Breaking the big story,
when amateur radio was the only way  – Laurie G3UML.

 

 

 

BBC journalist and long-time RSGB member Laurie Margolis broke the fact of the invasion of the Falklands through amateur radio. Here’s how…

He will also cover his involvement in the 1970 King Hussein story.

In this 40th anniversary year since the Falklands War, we are delighted to have this presentation from Laurie.

=========================

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/

apr
10
zo
2022
RF Webinar – Smith Charts “booster” @ (online)
apr 10 @ 15:00 – 17:00

Programma RF-webinar

10 apr 2022 PA3A Smith Chart “Booster”

Eerder gegeven webinars dit jaar

9 jan 2022 Antennetechniek
ON9CVD
Het gebruik en de toepassing van Antennetuners,
en waarom enige achtergrond kennis daarbij onontbeerlijk is!

– Waarom (gebruik)
– Wat (schakelingen)
– Waar (toepassingsgebied)
– Hoe (berekeningen)
– Hoe groot (tuner rendement)
– Hoe meten (enkele methoden)
– Hoe verder (bronnen voor zelfstudie)
23 jan 2022 Actualiteit
PA0HKZ + PA0EHG
Open discussie over de invloeden van de Tonga vulkaanexplosie op de HF banden.
13 feb 2022 Meettechniek
PE1FOD
Ruisfactor meten met een Spectrum Analyzer
13 mrt 2022 PA1EJO EMC problematiek en oplossingen voor PV installaties