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  • Digital Communications

    A great number of exciting new digital operating modes have developed, largely because of the availability of personal computers, soundcards, and advanced software. But amateur digital communication began in earnest in the late 1940's (if you don't count Morse as a digital mode!) when hams worked out techniques of connecting mechanical Teletype keyboard/printers to amateur gear using FSK and AFSK modulation. WSJT has become a very popular tool for digital communications. FSK441 mode is in use for meteor scatter contacts and JT65 is popular for terrestrial communications.

  • EME Moonbounce

    Amateur radio (ham) operators utilize EME for two-way communications. EME presents significant challenges to amateur operators interested in working weak signal communications. Currently, EME provides the longest communications path any two stations on Earth can utilize for bi-directional communications. Amateur operations use VHF, UHF and microwave frequencies. All amateur frequency bands from 50 MHz to 47 GHz have been used successfully, but most EME communications are on the 2 meter, 70-centimeter, or 23-centimeter bands. Common modulation modes utilized by amateurs are continuous wave with Morse Code, digital (JT65) and when the link budgets allow, voice..

  • Aurora and Solar Weather

    The interaction between Earth's magnetic field and Solar particles is a complex and mysterious field of science. The storm events involve high electric currents in the ionosphere and vast amounts electric power affecting to great many things. One of the ways to observe what is happening up there, is to detect the effects of these phenomena to non ionizing long wave electromagnetic radiation - radio waves.

  • VHF Contesting and Rover Operations

    Hams have been putting stations in their cars since the Twenties (1920's that is). Today, there is great satisfaction in facing the challenge of installing a transceiver in our small cars and pick-ups, using somewhat inefficient antennas, and still being able to make contacts with hams thousands of miles away while "tooling" down the highway.

  • Annual Technical Conference

    Every year since 1968, during the last weekend in July, the Central States VHF Society hosts an annual technical conference. There are two days of technical presentations, antenna range gain measurements, noise figure measurements, a flea market, and often times a vendor area. It's a great time to learn about weak signal VHF communications and an excellent place to network and catch up with old friends.

**-Central States VHF Society

Exploring the World Above 50MHz since 1965

CSVHFS History

CONFERENCE HISTORY

 

The Central States VHF Society
A Short History
by
Bill Tynan, W3XO
Central States VHF Society Historian

 

The Central States VHF Society (CSVHFS) began informally among a small group of Midwest VHF hams, who regularly got together on 75 meters to commiserate on their separation from the rest of the VHF fraternity on the East and West Coasts and gripe about the greater distances they had to span to make QSOs and collect states.

In the summer of 1965, Bill Smith, K0CER, later to take the helm of the QST VHF column, “The World above 50 Mcs,” invited a group of these Midwest VHFers to Sioux Falls, SD. Those who attended this first get-togethere didn’t call it a conference and didn’t form an organization. It was merely a bunch of hams with similar interests and problems meeting to swap ideas and stories about operation on what was then considered the upper reaches of the radio spectrum, 144 and 432 Megacycles. They hadn’t yet started calling them Megahertz.

The following year, 1966, another similar informal gathering was held, this time in Sand Springs, OK.  Once again, no thought was given to forming a permanent formal organization.

By 1967, it was perceived that regular annual gatherings should be held and an organization, to be called the “Central States VHF Society,“ formed. A General Chairman and several Committee Chairmen were selected and a conference was called for for August 19 and 20 at the Western Hills Lodge, Sequoyah State Park near Wagoner, OK. Those dates were selected to follow the Persieds meteor shower, so attendees could swap stories about what they worked, and didn’t work, during this major shower. Some 125 hams from 19 states and seven call areas descended on that beautiful location. Technical talks were supplemented by antenna tests.

Since then, both antenna gain tests and noise figure measurements have become key activities drawing VHFers to CSVHFS conferences. In those early days, a 2 dB noise figure could well win that competition. It is said that a prominent Iowa 2 meter EMEer, who had just worked Australia via the Moon, surprised everyone, including himself, when the preamp used for the record breaking contact, turned in an 8 dB noise figure. Nowadays, preamps must measure considerably less than a 1 dB to even be in the running. And, that’s not just on 2 meters. Phenomenally low noise figures are regularly turned in by preamps up to 10 GHz and beyond. For many years, Al Ward, W5LUA, was the prime provider of the latest exotic noise figure measuring gear. Through the years, the antenna range has been presided over by Marc Thorson, WB0TEM, and Kent Britain, WA5VJB. They, and those who have assisted them over the years, to measure antennas for various bands from 144 MHz and up, deserve the thanks of all: as do those who conducted the noise figure measurements.

The presence of many wives and children at that first 1967 conference, made it apparent that future meetings must include programs and activities geared to families, as well as presenting high quality technical programs. The family program has since become an important adjunct to all CSVHFS conferences. The toddlers present at those early gatherings are now grown and many are well know VHFers. Among them are such active Society members as Charlie Calhoun, Jr, K5TTT, Bryan Ward, N5QGH, and Ron Marosko Jr. NN5DX.

The 1968 conference, held at the Lake of the Ozarks, marked a milestone in the history of the Central States VHF Society in that it was decided to incorporate.  This gathering saw some one-hundred hams from 35 states plus Canada and England, the CSVHFS gatherings already having become internationally known as prime venues for learning about equipment and operating techniques for the VHF, UHF and microwave bands. Participating on the program that year was Ed Tilton, W1HDQ, originator and long-time conductor of the QST VHF column and for many years, that publication’s VHF Editor.

The 1970 conference, was held again at the Western Hills Lodge near Tulsa, OK. On the suggestion of K0CER, it was decided to institute an award honoring the memory of John Chambers, W6NLZ, for his many technical contributions to VHF and UHF, including the first terrestrial bridging of the Pacific from California to Hawaii on any VHF band other than 50 MHz. W6NLZ’s contacts with Tommy Thomas, KH6UK (K2UK), on 144, 220 and 432 proved the existence of the pacific tropo duct. From then on, the Chambers Award has been presented to those who have made notable technical contributions applicable to the bands above 50 MHz, the award becoming a mainstay of the CSVHF Society conferences. The next year’s Conference held in Sioux Falls, SD saw presentation of the Chambers Award, to Mel Wilson, W2BOC, for his studies of Sporadic E propagation.

At the 1974 conference in Boulder, CO, the members decided to affiliate with ARRL and make the CSVHFS a Society Life Member of AMSAT. Mrs John Chambers, W6NTC, was present at the Saturday evening banquet to present the Chambers Award to Dick Knadle, K2RIW, for his 70 cm amplifier design and development of stressed dishes.

The 1982 Conference held in Baton Rouge, LA was dedicated to the memory of Mel Wilson, W2BOC. With the passing of this distinguished Society member, a new award commemorating Mel was instituted. Lists of the recipients of the Chambers and Wilson Awards, are presented below.

In 1984, the Society began printing collections of the various papers presented at its conferences, but this worthwhile endeavor took on a new direction and importance at the 21st conference held in Arlington, TX in 1987. Beginning then, ARRL became the publisher of the official Proceedings, making the technical information presented each year more widely available.

At the 1995 Conference held in Colorado Springs, those members planning the Conference proposed that a second track of presentations be established to bring younger people, both those not yet licensed as well as new hams, into VHF and above operation. This approach has been implimented at several succeeding Conferences, including the one held in San Antonio in 2007, and has become known as “VHF-101.“  Also at the 1995 Colorado Springs Conference, Rod Blocksome,K0DAS, prposed that the Society launch the “States Above 50 MHz Award“ for VHFers who work the most band/states (later modified to states and provinces) during the year. For initiating the idea, Rod became the first Administrator of the Award. The current Administrator is Jim Hermanek, K0KFC. The States Above 50 MHz Award has become a very popular Central States VHF Society activity as it involves many who never have the opportunity to attend our annual conferences.

The Year 2000 Conference marked a departure in the history of the Central States VHF Society. Not only was it was the first CSVHFS gatering for the new millennium, it was the first Society gathering held outside of the United States. The site was Winnigeg, Manatoba in Canada. Four years later, having broken the ice, the annual affair again moved north of the border, this time to Mississauga, Ontario.

The 2013 Conference held in Elk Grove Village, IL marked a first, but one no one hopes to have repeated. Both the antenna range and rover row, were rained out.

A complete list of the Conference locations and the Society officers who hosted them is shown below.  For those of you have never before attended a Central States VHF Society Conference - WELCOME.  Those putting on this year’s Conference hope that you will get as much out of it as many of us have for many years.

 

 

 

This is a listing of CSVHFS conferences held since 1965.  Included are some significant society milestones.

Year

Site

Officers

Notes

1965

Sioux Falls, SD

None

Informal Get-together

1966

Sand Springs, OK

None

Informal Get-together

1967

Western Hills Lodge
near Tulsa, OK

Larry Nichols W5UGO Chairman
Sam Whitley, W5WAX Committee Chair
Don Hilliard, W0EYE Committee Chair
Dennis Main, W0YMG Committee Chair
Jay Liebman, W5ORH Committee Chair

 

1968

Lake of the Ozarks

Larry Nichols W5UGO Chairman
Joe Hall, K9SGD Conference Host
Glenn Smith, W0DQY Conference Host
Don Hilliard, W0EYE Program Chair

The decision was made to incorporate, and a Board of Directors and Officers were selected.

1969

Boulder, CO

Don Hilliard, W0EYE President
Louis Breyfogle, W0MOX Vice-President
Bill McCaa, K0RZJ Treasurer
Ted Mathewson, W4FJ Secretary

 

1970

Western Hills Lodge
near Tulsa, OK

Sam Whitley, W5WAX President
Jay Liebman, W5ORH Vice President
Allen Burson, K5WXZ Treasurer
Ted Mathewson, W4FJ Secretary

Upon suggestion of Bill Smith, K0CER, the Chambers Award was established.

1971

Sioux Falls, SD

John Fox, W0LER President
Ted Mathewson, W4FJ Vice-President
Dick Hart, K0MQS Treasurer
Tom Schrum, K7NII Secretary

 

1972

Overland Park, KS

Larry Nichols, W5UGO President
Dick Hart, K0MQS Vice-President
Sam Whitley, W5WAX Treasurer
Ted Mathewson, W4FJ Secretary

 

1973

Minneapolis, MN

John Fox, W0LER President
Ron Dunbar, W0MJS Vice-President
Bill Smith, K0CER Treasurer
Ted Mathewson, W4FJ Secretary

 

1974

Boulder, CO

Dick Hart, K0MQS President
Carl Scheideler, W2AZL Vice President
Charlie Calhoun, K5BXG Treasurer
Ted Mathewson, W4FJ Secretary

 

1975

Western Hills Lodge
near Tulsa, OK

Charlie Calhoun, K5BXG President
Sam Whitley, W5WAX Vice-President
John Fox, W0LER Treasurer
Ted Mathewson, W4FJ Secretary

 

1976

Houston, TX

Richard Allen, W5SXD President
Orville Burg, K5VWW Vice-President
Ron Dunbar, W0MJS Treasurer
Ted Mathewson, W4FJ Secretary

 

1977

Kansas City, MO

Orville Burg, K5VWW President
Joe Muscanere, WA5HNK Vice-President
Ed Fitch, W0OHU Treasurer
Ted Mathewson, W4FJ Secretary

 

1978

Rochester, MN

Ed Fitch, W0OHU President
John Fox, W0LER Vice-President
Terry Van Benschoten, W0VB Treasurer
Ted Mathewson, W4FJ Secretary

 

1979

Dallas, TX

Al Ward, WB5LUA President
Charlie Calhoun, W0RRY Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

 

1980

Colorado Springs, CO

Ray Uberecken, AA0L President
Keith Ericson, K0KE Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

 

1981

Sioux Falls, SD

Ed Gray, W0SD President
Chuck Hoover, K0VXM Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

 

1982

Baton Rouge, LA

Bob Taylor, WB5LBT President
Charles McGough, K5BMG Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

Dedicated to the memory of Mel Wilson, W2BOC; the Wilson Award was established.

1983

Overland Park, KS

Tom Bishop, K0TLM President
Jim McKim, W0CY Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

Dedicated to the memory of Carl Scheideler, W2AZL.

1984

Cedar Rapids, IA

Rod Blocksome, K0DAS President
Barry Buelow, WA0RJT Vice-President
Joe Muscanere, WA5HNK Treasurer
Ted Mathewson, W4FJ Secretary

The first published Proceedings were issued this year.

1985

Tulsa, OK

Charlie Calhoun, W0RRY President
Connie Marshall, K5CM Vice-President
Joe Muscanere, WA5HNK Treasurer
Ed Fitch, W0OHU Secretary

 

1986

St Louis, MO

Bob Sluder, N0IS President
Al Ward, WB5LUA Vice-President
Joe Muscanere, WA5HNK Treasurer
Ed Fitch, W0OHU Secretary

 

1987

Dallas, TX

Al Ward, WB5LUA President
Wes Atchison, WA5TKU Vice-President
Joe Muscanere, WA5HNK Treasurer
Ed Fitch, W0OHU Secretary

 

1988

Lincoln, NE

Roger Cox, WB0DGF President
Norm Smith, KA0ABA Vice President
Joe Muscanere, WA5HNK Treasurer
Ed Fitch, W0OHU Secretary

 

1989

Rolling Meadows, IL

Charles Clark, AF8Z President
Kermit Carlson, W9XA Vice President
Joe Muscanere, WA5HNK Treasurer
Ed Fitch, W0OHU Secretary

 

1990

Wichita, KS

Jon Jones, NO0Y President
Jon Lock, KF0M Vice-President
Bob Taylor, WB5LBT Treasurer
Larry C. Hazelwood, W5NZS Secretary

 

1991

Cedar Rapids, IA

Rod Blocksome, K0DAS President
Ron Neyens, N0CIH Vice-President
Bob Taylor, WB5LBT Treasurer
Larry C. Hazelwood, W5NZS Secretary

 

1992

Kerrville, TX

Bill Tynan, W3XO President
Derwin King, W5LUU Vice-President
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1993

Oklahoma City, OK

Joe Lynch, N6CL President
Tommy Henderson, WD5AGO Vice-Pres.
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

Dedicated to the memory of Joel Paladino, N6AMG who contributed so very much to the advancement of our interests in the wonderful world of VHF and above.

1994

Memphis, TN

Dave Meier, N4MW President
Joel Harrison,, WB5IGF Vice-President
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1995

Colorado Springs, CO

Lauren Libby, KX0O President
Hal Bergeson, W0MXY Vice-President
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1996

Bloomington, MN

Paul Husby, W0UC President
Jon Lieberg, K0FQA Vice-President
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1997

Hot Springs, AR

Joel Harrison, W5ZN President
Al Ward, WB5LUA Vice-President
Charlie Chennault, WA5YOU Treasurer
Dave Meier, N4MW Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1998

Kansas City, MO

Denise Hagedorn, AJ0E President
Al Ward, WB5LUA Vice-President
Dave Meier, N4MW Treasurer
Charlie Chennault, WA5YOU Ass't Treas.
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

1999

Cedar Rapids, IA

Rod Blocksome, K0DAS President
Bill Caldwell, N0LNO Vice-President
Dave Meier, N4MW Treasurer
Charlie Chennault, WA5YOU Ass't Treas.
Larry C. Hazelwood, W5NZS Secretary
Bob Sluder, N0IS Assistant Secretary

 

2000

Winnipeg, Manitoba, Canada

Barry Malowanchuk, VE4MA President
Jim Roik, VE4AQ Vice-President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2001

Fort Worth, TX

Lilburn Smith, W5KQJ President
Kent Britain, WA5VJB Vice-President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2002

Milwaukee, WI

Ken Boston, W9GA President
Marc Holdwick, N8KWX Vice-President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

Conference highlights viewable HERE.

2003

Tulsa, OK

Charlie Calhoun, K5TTT President
Tommy Henerson, WD5AGO Vice-Pres.
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

Conference highlights viewable HERE.

2004

Mississauga, Ont.

Peter Shilton, VE3AX President
Bob Morton, VE3BFM Vice-Pres.
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

Conference highlights viewable HERE.

2005

Colorado Springs, CO

Lauren Libby, W0LD President
Ken Anderson, W5ETT V-P Ops
Joe Lynch, N6CL V-P Pgming
Doug Wilson, WA0VSL V-P Tech Ops
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

Dedicated to the memory of Ted Mathewson W4FJ, a founding member of CSVHF. Ted was instrumental in the early growth of the society. The society would not be here today if not for his efforts during the formative years.
Conference highlights viewable HERE.

2006

Bloomington, MN

Bruce Richardson, W9FZ President
Jon Platt, W0SQ Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2007

San Antonio, TX

Paul Goble, ND2X President
Thomas Visel, NX1N Vice President
Lloyd Crawford, N5GDB V-P Tech Ops
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2008

Wichita, KS

Mel Graves, WR0I President
Dave Powers, KC0KCI Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2009

Elk Grove Village, IL

Kermit Carlson, W9XA President
John Kalenowsky, K9JK Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

A special presentation was made to Larry Hazelwood W5NZS of the President's Award for Twenty-Five years serving the Society as Corporate Secretary.

2010

St. Louis, MO

Ron Ochu, KO0Z, President
Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2011

Irving, TX

Chuck Clark, AF8Z, President
Kent Britain, WA5VJB Vice-President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2012

Cedar Rapids, IA

Bill Caldwell, N0LNO President
Rod Blocksome, K0DAS, Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2013

Elk Grove Village, IL

Kermit Carlson, W9XA President
John Kalenowsky, K9JK Vice President

Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2014

Austin, TX

Steve Hicks, N5AC, President
Dick Hanson, K5AND, Vice President
Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary

 

2015

Broomfield, CO

Doug Sharp, K2AD, President
John Maxwell, W0VG, Vice President

Bruce Richardson, W9FZ Treasurer
Lauren Libby, W0LD Assistant Treasurer
Larry C. Hazelwood, W5NZS Secretary
Tom Bishop, K0TLM Assistant Secretary