GippsTech 98

• Meteor Scatter - A personal prospective Ron Cook VK3AFW
• Long Boom Yagis for 50MHz. Steven Gregory VK3OT/VK3SIX/KL7SIX
• Mini-Symposium  "Pushing Microwaves uphill?!" Chaired by Alan Devlin VK3XPD
• Propagation & Operating Techniques. Russell Lemke VK3ZQB
• Home brew equipment : A Challenge. Trevor Niven VK5NC
• Equipment for 23&13 cm bands. Peter Freeman VK3KAI & Ralph Edgar VK3WRE
• Microwave Miscellany. Alan Devlin VK3XPD
• Receiver System Noise & System Design. John Pattison VK3ATQ
• Comet Shoemaker-Levy Doug McArthur VK3UM
• EME Communications. Doug McArthur VK3UM

GippsTech 99

• The ZL VHF/UHF scene Peter Loveridge ZL1UKG
• VHF/UHF Receive System Noise -a practical perspective John Patterson VK3ATQ
• The use of broadcast transmitters as propagation indicators @ VHF. Steve Gregory VK3OT
• Predicting tropospheric propagation across the Great Australian Bight. Russell Lemke VK3ZQB
• An overview of antenna design software. Peter Loveridge ZL1UKG
• Am I really on point one?. Ron Cook VK3AFW
• Prototyping with surface mount components. Luke Enriquez VK3EM
• Test equipment & techniques @ UHF & microwave frequencies. Variuos contributors
• Useful circuits for transverters. Ralph Edgar VK3WRE
• Design & construction of lightweight yagis @ UHF. Peter Freeman VK3KAI

GippsTech 2000

• Aircraft enhancment-Some insights from Bistatic Radar Theory. Rex Moncur VK7MO
• A sinple TVI fix. Ron Cook VK3AFW
• Some initial observations on using Spectran/Spectrogram/Hamview & Visual Frequency Shift Keyed CW on 144MHz Rex Moncur VK7MO
• Tracking Aircraft, Meteors & other uses for DSP software. Chris Morley VK3KME
• An improved Microwatt RF power Meter. Ron Cook VK3AFW
• 24GHz project & experiences : Continuing the Challenge. Colin Hutchesson VK5DK, Trevo Niven VK5NC & Russell Lemke VK3ZQB
• An inexpensive relay sequencer for the AM17. Ron Cook VK3AFW
• Introduction to the DX Cluster. Jack Bramham VK3WWW
• Getting onto the 2.4GHz (12.5cm) band : an update. Peter Freeman VK3KAI
• "VK6KZ Portable" Hints for VHF/UHF portable operation. Dr. Walter Howse VK6KZ
• A useful circuit for microwave operators. Ralp Edgar VK3WRE
• Lightweight Yagis for 70 & 23Cm bands. Peter Freeman VK3KAI
• A 12V to 28V DC-DC Converter. Ron Cook VK3AFW

Gippstech 2001

• Fast Hell & Meteors. Rex Moncur VK7MO & Ian McDonald VK3AXH
• Slow Hell & Aurora. Rex Moncur VK7MO & Ian McDonald VK3AXH
• Small System 144MHz EME. Michael J Farrell, VK2FLR
• AMSAT AO-40 : Opportunities for Microwave Amateur Radio Experiments. Rod Preston VK4KZR.
• Predicting Aircraft Enhancement Opportunities. Chris Morley VK3KME
• Beams for bush bashers. Ron Cook VK3AFW
• VHF & beyond for the budding nomad. Barry Miller VK3BJM
• 24GHZ with homebrew test equipment. Neil Sandford VK2EI
• 2M DSP TRX Project Mark Dettering VK3TLW
• Low-cost methods of Phase Noise Measurement. John Morrissey VK3zrx
• 1296 Teflon Slug tuner. Ralph Edgar VK3WRE
• A simple 10GHz Frequency Modulated Carrier Wave RADAR. John Patterson VK3ATQ
• Making Printed Circuit Boards at home.  Bryan Ackerley VK3YNG
• Active Audio Filter from cell phone surplus. Russell Lemke VK3ZQB
• Simple Signal Source. Russell Lemke. VK3ZQB
• Recycling Electronics from cell phone surplus. Russell Lemke VK3ZQB

GippsTech 2002

• RF Radiatioin Patterns : Does your station meet with the new licensing assessment requirements?  Obtaing a High power permit Doug McArthur VK3UM
• "$5 directional coupler " & "$5 slotted line." Peter Ward AX2VCI
• Speech Acoustics & Intelligibility. ( A review of the acoustic characteristics of speech & the basic factors affecting speech intelligibility in communication systems.) John Clark VK2TK
• WSJT meteor scatter experiences. Rex Moncour VK7MO
• Using JT44 for tropospheric & EME propagation. Mike Farrell VK2FLR
•  The trials & tribulations of running a basic VHF/UHF station. Bob Demkiw VK2TG
• Two unusual antennae for 2.4GHz. Peter Ward AX2VCI
• Solving noise problems in modern radio systems. Bryan Ackerley VK3YNG
• Building coaxial gain antennas - overlooked principles. Peter Ward AX2VCI
• Predicting Es propagation Brian TidemanVK3BCZ
• The VK3UM 10 meter dish installation. A pictorial presentation of the installation from start to finish including the mount, drives, tracking & feed systems. Doug McArthur VK3UM
• Integration of a 1W 10GHz PA with a 650mm offset fed dish. Neil Sanford VK2EI
• Basic testing techniques @ UHF & above Peter Loveridge ZL1UKG
• System integration with the Milliwave power amplifier @ 24GHz. Neil Sandford VK2EI
• XLNEC - free antenna design software. Peter Ward AX2VCI
• Siting the next generation radio telescope- the Square Kilometer Array. Bruce Thomas VK2AMT
• Transmission line fault finding using a simple homebrew TDR. John Morrissey Vk3ZRX
• Aids for predicting Aircraft Enhancement. Barry Miller VK3BJM
• The "Broomstick" - an antenna for the  FM satallites.  George Francis VK3HV

GippsTech 2003

• WSJT: 2003 and Beyond, Joe Taylor K1JT

• VHF and Microwave Propagation Characteristics of Ducts, Andrew Martin, VK3KAQ

• An Improved WSJT Interface, Ron Cook VK3AFW

• Determinants of receiver sensitivity – What are the keys to better weak signal receive performance? Doug McArthur VK3UM

• Predicting sporadic E (Es) – an update, Brian Tideman VK3BCZ

• ZL7C on VHF, Bob McQuarrie ZL3TY

• WSJT as a Tool for Propagation Study. Ron Cook VK3AFW

• Aids to VHF-Microwave Propagation,Jim Collins VK3ZYC

• An airline friendly antenna for 144 MHz, Michael Farrell VK2FLR

• Lord Howe Island DXpedition – VHF/UHF component, Rex Moncur VK7MO

• Rover operations: Build higher scores in the VHF/UHF Field Day contests, Peter Freeman VK3KAI

• VK3RGI Experimental Weak Signal Mode Beacon, Jim Collins VK3ZYC

• Field Day 2003, Doug Friend VK4OE

GippsTech 2004

• VHF and Microwave Propagation Characteristics of Ducts, Andrew Martin, VK3KAQ

• Detecting signals from the Mars Global Surveyor, Doug McArthur VK3UM

• Practical Valve Linear Amplifier Construction, David Smith VK3HZ

• Circuit design and implementation using PICAXE’s, Lee de Vries VK3PK

• Some Radio Applications for the PICAXE, David Smith VK3HZ

• Early EME Operation Using a Rhombic on 144 MHz, Chris Skeer VK5MC

• Software Defined Radio, Lee de Vries VK3PK

• Radio Mobile - A brief overview, Jim Collins VK3ZYC

• Auroral Doppler shifts, Doug McArthur VK3UM

• DX distances, how accurate? Ron Cook VK3AFW

• Utilizing Tropospheric Propagation on 432 MHz, Rob Ashlin VK3EK

• Measuring Oscillator Temperature Stability, Neil Sandford VK2EI

• Simple Microwave Phase Lock Loop, Neil Sandford VK2EI

• GPS-derived Frequency Reference using REFLOCK, John Morrissey VK3ZRX

• 144 MHz Activity:  1972-2002, Michael Farrell VK2FLR