RSGB 2018 Convention lecture - PI4: the Digtal mode for beacons and why it is a success

RSGB 2018 Convention lecture - PI4: the Digtal mode for beacons and why it is a success

Bo Hansen, OZ2M.
Many digital modes have been tested for VHF beacon use and have been found to have problems. PI4 was developed by a team in Denmark to overcome these issues. The first PI4 + CW + carrier beacon, OZ7IGY, has been using the mixed mode for more than five years. The presentation explains why PI4 has become a success both among many VHF beacon operators and users. Today more than 25 beacons use PI4 transmissions in their sequence with at least eight different hardware implementations available and more are planned.

Tim M0BEW.

RSGB 2018 Convention lecture - Improving your Morse skills

RSGB 2018 Convention lecture - Improving your Morse skills

Ray Burlingame-Goff, G4FON.
Nobody would claim that becoming proficient at Morse Code is easy but, once learnt, the results are very satisfying. In his talk Ray discusses the pitfalls of learning Morse and the work of the German psychologist Ludwig Koch which G4FON implemented in his freeware training software. Drawing on his own experience and over ten years of feedback by users of his software, Ray offers practical advice on how you can move from simply working stations with a “5NN TU” reply to effortless casual rag chewing with them.

Tim M0BEW.

RSGB 2018 Convention lecture - FT8 Secrets

RSGB 2018 Convention lecture - FT8 Secrets

Neil Smith, G4DBN.
Neil investigates what really matters when you are aiming for the ultimate performance with FT8 and other digital modes. He demonstrates and explains the most common problems which affect the receive and transmit paths on analogue and SDR systems. Using real-world examples of each of the pitfalls, Neil presents practical tools and techniques to help you improve your digimode performance from LF to microwaves.

Tim M0BEW.

RSGB Convention 2018 lecture - IOTA news

RSGB Convention 2018 lecture - IOTA news

Roger Balister, G3KMA.
Roger announces several interesting additions to the list of groups qualifying for the IOTA Programme. This forms the first part of the five-yearly review of the list scheduled for 2019. Also Roger explains the way the programme rules developed during the early years, lifting the curtain on the reasoning that drove the decisions.

Tim M0BEW.

RSGB Convention 2018 lecture - KH1/KH7Z Baker Island DXpedition

RSGB Convention 2018 lecture - KH1/KH7Z Baker Island DXpedition.

Don Greenbaum, N1DG. Baker Island is an uninhabited atoll about 2,000 miles south-west of Hawaii. Until recently it was one of the top ten most wanted DXCC entities on the planet. Don, one of the team leaders, describes the planning process, setbacks, solutions and outcomes from the July 2018 DXpedition that made around 70,000 QSOs and tested the new FT8 data mode under DXpedition conditions for the first time.
The expedition also commemorated Amelia Earhart, the aviation pioneer, who disappeared near Baker Island in 1937 and the Hawaiian students who attempted to found the settlement of Meyerton on Baker in 1935.

Tim M0BEW.

RSGB Convention 2017 lecture - Sporadic E: a propagation update

RSGB Convention 2017 lecture - Sporadic E: a propagation update.

Chris Deacon, G4IFK and Jim Bacon, G3YLA.

Tim M0BEW.

RSGB 2018 Convention lecture - VHF Baluns: Fact and Fancy

RSGB 2018 Convention lecture - VHF Baluns: Fact and Fancy

Ian White, GM3SEK.
Our ideas about HF baluns have changed dramatically in recent years. The focus today is very much on suppressing unwanted common-mode RF currents, to reduce both the received noise levels and the risks of causing interference on transmit. Now Ian extends those ideas into the VHF-UHF spectrum, taking a critical look at some long-established methods for feeding Yagi antennas and identifying a new list of Do's and Don'ts for modern conditions.

Tim M0BEW.

RSGB Convention 2018 lecture - Sporadic E revisited - is it any clearer?

RSGB Convention 2018 lecture - Sporadic E revisited - is it any clearer?

Jim Bacon, G3YLA.
Sporadic E is a complex propagation mode so Jim starts with a review of where we are with current understanding of Sporadic E, ideal for the many newcomers to amateur radio. He develops an easy to use guide for operating during openings, using information readily available for the amateur equipped with internet access. The talk also examines some of the events of the 2018 season to see how our collection of ‘rules’ stand up to the test of real events… or not!

Tim M0BEW.

RSGB Convention 2017 lecture - Combined mode propagation on 144Mhz enables ultra DX contacts

RSGB Convention 2017 lecture - Combined mode propagation on 144Mhz enables ultra DX contacts

Tim Fern, G4LOH
It has long been speculated that the plethora of propagation modes available on 144MHz may occasionally be coincident and enable spectacular long distance contacts. This presentation provides a non-mathematical overview of what has been observed and speculates what might be possible.
All DX propagation modes on 144MHz are rare, existing for minutes or perhaps hours, in some particular direction each year. Mode combinations are therefore extremely rare, being the product of two, small probabilities. Ultra-DX contacts will not happen by chance. With patience and understanding however, many stations might achieve spectacular results they had previously thought impossible.

Tim M0BEW.

RSGB Convention 2017 lecture Good design practice for home Yagi construction

RSGB Convention 2017 lecture Good design practice for home Yagi construction

Richard Mason, G6HKS.
We apologise for the poor audio on this video.

Tim M0BEW.

The last WRTC2018 heute today 16 July 2018

The last WRTC2018 heute today 16 July 2018.

Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC2018 Interviews after the competition

WRTC2018 Interviews after the competition.

Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC2018 heute today 15 July 2018

WRTC2018 heute today 15 July 2018.

Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC2018 heute today 13 July 2018 Opening Ceremony

WRTC2018 heute today 13 July 2018 Opening Ceremony.

Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC2018 heute today 13 July 2018 Opening Ceremony

WRTC2018 heute today 13 July 2018 Opening Ceremony.

 
Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC2018 heute today 12 July 2018

WRTC2018 heute today 12 July 2018.

Linked from http://www.wrtc2018.de/en/

Tim M0BEW.

WRTC 2018 - The Place To Go

WRTC 2018 - The Place To Go.

WRTC 2018 is coming - have a look to the 'Place to Go' in 2018 - beautiful countryside and historic towns.

 https://vimeo.com/213035703

Many thanks. Media from http://www.wrtc2018.de

Tim M0BEW.

WRTC 2018 The Movie

WRTC 2018 The Movie.

The World Radiosport Team Championship (WRTC) is a competition between two-person teams of amateur radio operators testing their skills to make contacts with other Amateur Radio operators around the world over a 24 hour period. All teams use identical antennas from the same geographic region, eliminating all variables except operating ability. WRTC2018 included 63 competing teams from 27 qualifying regions around the world. Competitors represented 30 different countries.

This video was edited and produced by Steffen, DM6WAN, and his volunteers.

Tim M0BEW.

K3LR - Contest University 2018 & Dayton Contest Activities

K3LR - Contest University 2018 & Dayton Contest Activities.

 These webinars are brought to you by the WWROF http://wwrof.org/ 
Please consider supporting the WWROF http://wwrof.org/supporting-wwrof/
 
Tim M0BEW.

Receiving Antenna Metrics With Examples

Receiving Antenna Metrics With Examples.

Receiving Antenna Metrics With Examples.

These webinars are brought to you by the WWROF http://wwrof.org/ 
Please consider supporting the WWROF http://wwrof.org/supporting-wwrof/

Tim - M0BEW.