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The 23rd Annual Microwave Update 2008 was held October 17-19, 2008, in Bloomington, Minnesota. Here is a summary of papers presented. Conference Proceedings are available print on demand from Lulu. Cost is $20, plus shipping; ISBN10: 0-87259-971-X, ISBN13: 978-0-87259-971-0
Table of Contents
Welcome; Donn Baker, WA2VOI/Ø
History of Microwave Update; Al Ward W5LUA
Biographies
Mode-Selection and Mode-Feedback Techniques Optimizes VCXO (Voltage Controlled Crystal Oscillator) Performances; U.L. Rohde and A.K. Poddar, N1UR
A New Low-Noise VHF Crystal Oscillator Topology; Chris Bartram GW4DG
Tuning ‘Brick’ Oscillators – Revisted; Doug Friend, VK4OE
Discussions On The Design & Development Of A Portable GPS Locked Frequency Reference and the 10/24 GHz Beacon Project; Mike King, KMØT
Using Softrock SDRs in VHF/UHF/Microware Operations; Bill Davis Jr, KØAWU
Multiband Microwave Transverters for the Rover Simple and Cheap: Now Four Bands, adding 902 MHz; Paul Wade W1GHZ
The Rovers Dream is Answered; John Jaminet, W3HMS
DC-DC Boost Converters: Very Handy Building Blocks for Roving and Portable Systems; Wayne Yoshida, KH6WZ
Modifying Targus Notebook Power Supplies for Powering Microwave Equipment; Kerry Banke, N6IZW
Running Your Microwave Rig on AC Or Tesla and Microwaves; Doug Millar K6JEY
Digital Speech within 100 Hz Bandwidth; Mike Lebo, N6IEF
Waveguide Filters You Can Build and Tune; Paul Wade W1GHZ
Pipe-Cap Filters Revisited; Paul Wade W1GHZ
A Six Band Tower Switching System; David Robinson, WW2R, G4FRE
Independent Receive for the DB6NT MKU23G2; Dave Robinson WW2R
A Sample of One, or, A New MOSFET Hybrid; Steve Kostro, N2CEI
Building Beacons for 23 cm, 13 cm, and 6 cm; John Jaminet, W3HMS, and Charlie Heisler, K3VDB
The San Bernardino Microwave Society Club Project: A 3456 MHz Transverter; Chris Shoaff, N9RIN, Jerry Mulchin, N7EME and Dick Kolbly, K6HIJ
Experiments with a Non-Line-of Sight (NLOS) Beacon Using a 940 nm LED Array; Kerry Banke, N6IZW, and Lee Scheppmann, KDØIF
Using the XRF286 on 23cm; By Jim Klitzing, W6PQL
Circular Sweep Frequency Calibrator; John M. Franke, WA4WDL
Computer Optimized Dual Mode Circularly Polarized Feedhorn; Marc Franco, N2UO
It’s Your Turn: Write a Magazine Article on Your Next Microwave Project; Wayne Yoshida, KH6WZ
High Power Motorola 900MHz PA; Mats Bengtsson, KD5FZX
A Simple, Accurate and Inexpensive Digital Elevation Indicator; Tony Emanuele WA8RJF
Using Unmodified “C” and “Ku” LNBs As Down Converters for Stable, Narrow-Band Reception; Kerry Banke, N6IZW
GeMMA – a Software Defined Microwave Transmitter (Generator for Modern Microwave Applications); Grant Hodgson, G8UBN
L and S Band Very Low Noise Amplifier Designs - Cooling, is it Necessary? Thomas Henderson, WD5AGO and Al Ward, W5LUA
Over 100km on 241GHz; Brian Justin, WA1ZMS/4
A Noise Meter Suitable for Sun & Moon Noise Type Measurements; Charlie Kahwagi, VK3NX
2008 Status of Progress Towards a 77-78 GHz Amateur Amplifier; Tom Williams, WA1MBA
Update of 24, 47 & 77 GHz EME Activity; Barry Malowanchuk, VE4MA, and Al Ward W5LUA
A x4 Subharmonic Mixer for 24 GHz; Paul Drexler, W2PED
Some observations on phase noise from local oscillator strings;Gerald N. Johnson PE, KØCQD
A USB Programmable High Stability LO for Microwave Transverters; Stephen
27th ARRL and TAPR Digital Communications Conference
The 27th ARRL and TAPR Digital Communications Conference was held September 26-28, 2008, in Chicago, Illinois. Here is a summary of papers presented. Conference Proceedings are available print on demand from Lulu. Cost is $20, plus shipping; ISBN: 978-0-87259-100-4
Table of Contents
EcomScs and GateWayScs AX25 Packet Radio E-Mail; John Blowsky, KB2SCS
A Brief Introduction to Delay Tolerant Networking; Frank Brickle, AB2KT
Frequency and Other New Initiatives in APRS since 2004; Bob Bruninga, WB4APR
Avoid Infrastructure by Centralized Polling of Emcomm Email; Andre Hansen, K6AH
Digital speech within 100 Hz bandwidth; Mike Lebo, N6IEF
Supplement to digital speech within 100 Hz bandwidth; Mike Lebo, N6IEF
D-STAR® Uncovered; Peter Loveall AE5PL
A Protocol for Multicast Weather Data Distribution Over AX.25; Nick Luther, K9NL
WINMOR…A Sound Card ARQ Mode for Winlink HF Digital Messaging; Rick Muething, KN6KB, AAA9WK
Winlink 2000 – An Update; Victor Poor, W5SMM / AAA9WL
Clocking the Data; Jerry Shirar – N9XR
A solar-powered telemetry system on base of a repeater; Ioannis N. Vandikas, SV2CPH
It’s the Network; Erik Westgard, NY9D
Using Udpcast to IP Multicast Data over Amateur Packet Radio Networks; Paul D. Wiedemeier, Ph.D., KE5LKY, and Clarke M. Williams, Jr. Endowed Professor of Computer Science
Writing for Publication — It’s Not Rocket Science; Larry Wolfgang
27th Anniversary Conference of the Society of Amateur Radio Astronomers
The 27th Anniversary Conference of the Society of Amateur Radio Astronomers was held June 29 through July 2, 2008, in Green Bank, West Virginia. Here is a summary of papers presented. Conference Proceedings are available print on demand from Lulu. Cost is $20, plus shipping; ISBN: 978-0-87259-136-3
Table of Contents
Cosmology and Biology; Steven J. Dick
FFT Concepts without Calculus; Bruce Randall WD4JQV
A remotely Accessible Amateur Radio Astronomy Observatory; Charles Forster, WA9ACI
Innovative Experiments for the Radio Astronomy Classroom; John C. Mannone
Characterizing A Microwave Radiometer For Solar Plasma Observations With A Local Noon-Time Polar Region As A Dummy Load; Jamie Riggs
The Biggest Offset Dish in the World, the National Radio Astronomy Observatory’s 100 meter Diameter Green Bank Telescope; Charles Osborne, K4CSO
Ku-band Microwave Radio Astronomy Interferometry Laboratory; David E. Fields, Bill Lord, Alan E.E. Rogers, Preethi Pratap and Phillip Schute
TAOSON - Tamke Allan Observatory Solar Observation Network; David E. Fields, Bill Lord, Melinda Lord, Aaron Haun
Searching for Earthlike Planets; James VanProoyen, N8PQK
Observing a Lunar Eclipse at 12 GHz; Paul L. Oxley
Improvements to A Digital Baseband Four Channel Receiver; Paul L. Oxley
Size Does Matter: Solid State Spectral Imager (SSSI) on a Chip and the Search for Extraterrestrial Life; Thaddaeus Hannel and Robert A. Lodder
Introducing a New Radio Astronomy Software Application; Shad Nygren, KD7WMX
NASA Space Exploration and Radio Astronomy; John C. Mannone
A Low Cost Pulsar Machine; James VanProoyen, N8PQK
Sputnik and SETI: Uniting East and West; Prof. H. Paul Shuch
Interferometry of the Sun at 4 GHz; W. Thresher, M. Wheatley and E. Budding
Publications: SARA Journal Archives Available on CD-ROM
Southeastern VHF Society Conference Proceedings
The 2008 Southeastern VHF Society Conference was held April 25-26 in Orlando, Florida. Here is a summary of papers presented. Conference Proceedings are available print on demand from Lulu. Cost is $20, plus shipping; ISBN: 978-0-87259-133-2.
Table of Contents
Welcome
SVHF Officers and Directors
2008 Conference Committee
Schedule of Events and Technical Program
Antennas:
A 50 MHz Contest Array, the 2007 Version; Dave Olean, K1WHS
The Biggest Offset Dish in the World, the National Radio Astronomy Observatory’s 100 meter Diameter Green Bank Telescope; Charles Osborne, K4CSO
The Boxkite Yagi: A Novel High Performance Antenna for VHF/UHF/Microwaves; Brian V. Cake, KF2YN
Restoring VHF Yagis; Douglas A. Campbell, N1CWR
Axial-Mode Helices Revisited; L. B. Cebik, W4RNL
Itty Bitty Wheels on Steroids; David Clingerman, W6OAL
What I learnt (the hard way) about small dish EME; David Robinson, WW2R
Amateur Band Equipment:
A Homebuilt 2304 MHz System; Jack Colson, W3TMZ, FLWSS
A Pair of Very Low Noise Pre-Amplifiers for the 1.3 GHz and 2.3 GHz Amateur Bands; Sam Jewell, G4DDK
A Six Band Tower Switching System; David Robinson, WW2R/G4FRE
Pipe-Cap Filters Revisited; Paul Wade, W1GHZ
Independent Receive for the DB6NT MKU23G2; Dave Robinson, WW2R/G4FRE
A Dual Band Transverter System for 1296/2304 MHz; Ben Lowe, K4QF
Transitions for Small Waveguides; Paul Wade, W1GHZ
Design Notes for a 24 GHz Subharmonic Mixer; Paul Drexler, W2PED
Support Equipment and Methods:
A Simple, Accurate and Inexpensive Digital Elevation Indicator; Tony Emanuele, WA8RJF
ROVERBOX Display Unit, A Stand-alone GPS Module Monitor; Christophe Huygens, ON4IY
The Importance of Image Rejection in Microwave Receivers; Jim Hagan, NN4AA, FLWSS
Using a Hewlett-Packard Filter as a Spectrum Analyzer; John M. Franke, WA4WDL
Fundamentals of Digitizing Oscilloscopes; Mike Stipick, KC4RI
General:
Amateur Deep Space Communication: A Future for Amateur Radio in Space?; Freddy de Guchteneire, ON6UG
Microwaves: The Dark Side!; Willie L. Baber, WJ9B, FLWSS
ARISS Contact with The Arnold Palmer Hospital for Children; David Jordan, AA4KN
The Future of Amateur Radio …It’s up to you!; David H. Jordan, AA4KN
SVHFS Design Contest:
Results of the 2007 SVHFS/Mini-Circuits Annual Award for Design Achievement
2008 Judging Criteria for SVHFS Design Contest
Using the WWVB 60 kHz Signal to Provide Precision Frequency Markers in the Amateur Microwave Bands; Jim Hagan, NN4AA, FLWSS
E-Z Lock, The Simplest PLL System You’ll Ever Use!; Ott Fiebel, W4WSR
A Very Low-Noise 10 to 5 MHz Regenerative Frequency Divider; Brian Justin, WA1ZMS/4
Multiband Microwave Transverters for the Rover, Simple and Cheap; Paul Wade, W1GHZ
A USB Programmable High Stability LO for Microwave Transverters; Stephen Hicks, N5AC
Implementing a 124.5MHz DFS on the G4HUP DFS PCB; Dave Powis, G4HUP/ND8P
Worked all of ‘EM’ Award
K4UHF Award
Results of 50 MHz SVHFS Fall Sprints
Results of 144 MHz SVHFS Fall Sprints
Results of 222 MHz SVHFS Fall Sprints
Results of 432 MHz SVHFS Fall Sprints
Results of Microwaves SVHFS Fall Sprints
2007 SVHFS Noise Figure Measurements Results
2007 SVHFS Antenna Range Results
2007 SVHFS Conference Banquet Prize Donors
