Lectures

Topic-in-a-nutshell

 


 

Lectures

 

09:15 – 10:00
Home audio visual system design and installation
Brian Clarke VK2GCE

You have:
·        a desire to hear and see program material – audio, video, audio-visual
·        a spare living room you want to convert into a home cinema.
What you need to consider:
·         What sounds do you want to hear?
·         What sounds can you hear?
·         What is a sound system?
·         How does a good sound system work?
·         Basic requirements
·         DIY / fixit issues
·         Requests for further clarification
To maintain the electronics / radio theme, there will be reference to:
·         SWR
·         wavelength
·         resonance
·         Q
·         transmissions lines
·         waveguides
·         modulation
·         distortion

 

10:15 – 11:00
World radio championships (WRTC), Germany 2018
Bernd Langer VK2IA

WRTC is regarded amongst contesters as the Olympics of contesting and the next event will happen in less than 2 years. Bernd has participated as referee and competitor in past events.  Boston 2014, Moscow 2011, Slovenia 2000 and San Fransisco1996. The presentation will include some history and then focus on WRTC 2018.  The facilitator is responsible for helping with Fund raising of this event and he will set up a stall where you can talk further, perhaps contribute. You might even like to join in the action. Come along and get the good oil first hand.

 

11:15 – 12:00
The VHF-UHF-Microwave and weak signal group annual get-together
Roger Harrison VK2ZRH

There will be short presentations of topical subjects and discussions.  If this is an area you want to get to know, come along and join in.

 

12:15 – 13:00
The international governance of amateur radio and the role of the IARU
Peter Young. VK3MV

Peter has delivered this lecture in Hong Kong, Tokyo as well as a number of Amateur radio clubs in Melbourne.

 

13:15 – 14:00

Racing drones using first person view (FPV)
Rhys Evans

This lecture will outline the operation, construction, costs and rules of drones.   Also, an explanation of the control of drones and FPV using goggles and laptop computers.   Reece and his team will set up a drone race course and 4 or 5 members of the group conduct drone races throughout the day.  They also have a stall selling very small to larger drones and associated components at the field day.

 

14:00 – 14:45
JOTA 2017 Coordinators meeting
Karl Humphreys VK2KFH – Scouts NSW JOTA Coordinator

A short session to finalise planning elements ensuring the smooth operation of the on-the-air activities between the many NSW amateur radio clubs participating in this year’s Scouts Jamboree of the Air (JOTA).

 


 

Topic-in-a-nutshell

09:00 – 10:00
FreeDV (Digital voice mode)
David Rowe VK5DGR

FreeDV is a growing set of digital voice modes for HF and VHF radio, based on the Codec 2 vocoder and PSK/FSK modems.  FreeDV is open source software, and can be run using a laptop and sound cards, or integrated into SDR hardware.

In this talk David will introduce the latest HF and VHF FreeDV modes, explain their advantages over closed source software for Digital Voice over Amateur Radio, and talk about how to get started.

 

10:00 – 11:00
Command Set Blind Instrument Landing
Ray Robinson VK2NO

Ray will bring along his one and only version of the British Command Set receiver modified by the US air force to give them a simple yet effective instrument landing system.
 As the story goes their missions were severely curtailed because they would not fly if the ceiling on the day was below or around 500 feet.    For any who know England that was probably most days.  Come along and here Ray’s very authoritative account of the events.

 

11:00 – 11:30
A brief introduction to single board computers- focusing on Raspberry Pi.
Bob Mutton VK2ZRM

Here is a hands on approach to getting started with single board computers,. If you ever thought “I would like to give it a try”,  don’t miss this one.

 

11:30 – 12:00
WebSDR, How it works – sponsored by Manly Warringah Radio Society
Geoff Van der Wagon VK2AVR  – President, Manly Warringah Radio Society

Software Defined Radio is the future in Amateur radio equipment.  SDR allows you to upgrade to new functionality in your transceiver without buying a new one. WebSDR is all about operating an SDR based radio on the internet.  The Manly Warringah Radio Society, by way of a generous grant from the Amateur radio NSW, established and now provides a WebSDR for all to use.  Come along and learn all about it.

 

12:00 – 12:30
eBay modules for experimentation
Steve Stebbing  VK2AAV

There is a plethora of little PCB mounted electronic-circuit modules available on eBay often available for only a dollar or two.  The talk will include a short survey of what’s available, have a look at a few select ones and will focus on how these modules can be used in home-brew projects to save time, money and often SMD soldering of tiny packages.

 

12:30 – 13:00

HF related weather services
Dr Vickal Kumar BOM – Space Weather Services

Geomagnetic activity,  coronial mass ejections, flairs and short wave fadeouts.  If this sounds like a drinking game that was popular in the seventies, you might want to come along and learn about the HF related services that are available and the science behind it all.

 

13:00 – 14:00
Home brew modular spectrum analyser/vector network analyser (MSA/VSA)
Kevin Jardine. VK2KVJ

The talk will detail the contruction of a modular home brew MSA/VSA and tracking generator together with it’s associated test fixtures (reflectometer, splitter, series fixture) that allows it to perform amplitude and phase measurements between 50kHz and 3.2 gHz.  It can measure return loss, insertion los, RLC component parameters, cable characteristics, crystal parameters, etc.  It includes internal batteries to facilitate portable measurements and is controlled by a laptop computer.  There will be a demonstration of the equipment used and its operation.

 

14:00 – 14:30
AMSAT-VK Working the low Earth orbiting satellites
Bob Hudson VK2AOR

This talk will discuss the satellites and how to set up a hand-held radio and antenna system to access them.  Also, Information on how to join AMSAT-VK and access the IRLP/Echolink monthly conference server where the group talks are available world-wide.