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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
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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
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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
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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
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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
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GippsTech
2003
-
WSJT: 2003 and
Beyond, Joe Taylor K1JT
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VHF and Microwave
Propagation Characteristics of Ducts,
Andrew Martin, VK3KAQ
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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
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Field Day 2003,
Doug Friend VK4OE
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GippsTech
2004
-
VHF and Microwave
Propagation Characteristics of Ducts,
Andrew Martin, VK3KAQ
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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
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GippsTech
2005
-
EME
10 GHz in the back yard Alan
Devlin VK3XPD
-
More
Ideas and Measurements of Elevated Ducts, This is Getting Very
Complicated! Andrew
Martin VK3KAQ
-
LIGHTNING
– Effects of a Near Strike Guy
Fletcher VK2KU
-
Recent
advances in optical communications
Chris Long
-
High
Power Permits – Myths Doug
McArthur VK3UM
-
Calculating
Tropospheric Scatter Propagation Losses
Rex Moncur VK7MO
-
Small
Station EME David
Smith VK3HZ
-
High
Stability Crystal Oven based on the Principle of Constant Temperature
Gradient Rex
Moncur VK7MO
-
Fitting
an external oscillator to a Yaesu FT847
Joe Gelson VK7JG
-
Simple
VHF S Meter Calibrator Neil
Sandford VK2EI
-
Frequency
Measurement with Modern Transceivers
Neil Sandford VK2EI
-
Better
power line noise blankers Glen
English VK2JPR
-
The
VK3UM Radiation and System Performance Calculator
Doug McArthur VK3UM
-
A
beam position indicator project
John Drew VK5DJ
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