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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

States Above 50 MHz General Rules


Central States VHF Society



States Above 50 MHz Award Contest Rules


The total score is the sum of the number of states/provinces worked on each band.  For example:


Personal Data Total Score 50 MHz 144 MHz 222 MHz 432 MHz 902 MHz 1296 MHz 2.3 GHz 3.4 GHz 5.7 GHz 10 GHz 24 GHz >24 GHz
 Name  Callsign Loc.
    (state) 183 48 28 17 26 15 19 12 10 4 4    


1.  Certificates will be awarded to any station who applies with a score of 30 or higher. The applicant does not have to be a member of the CSVHF Society to receive a certificate. There are three categories:

Single Operator, Multi-Operator, and Rover.

2.  Walnut plaques will be awarded for first, second, and third place high scores in the Single Operator category. The awards will be presented at the annual CSVHF Society Conference held each year at the end of July. You must be a member of the CSVHF Society to be eligible for the 1st, 2nd, or 3rd place plaque awards. In case of a tie, a weighting factor will be applied to each band's score making higher frequency scores more valuable than lower frequency scores.


Miscellaneous Rules:


For Single-Op and Multi-Op categories all contacts must be made from a station located entirely within a single 500 meter circle.

New as of 2001/2002: Rover category.

Rovers may combine states worked from multiple locations.

New as of 2002/2003: Canadian Provinces.

You may count Canadian Provinces in your yearly quest--however the name of the program will not change. CY0 and CY9 despite DXCC status count for Nova Scotia.

New as of 2010:  Electronic entries allowed.


1.  Refer to the ARRL rules for WAS awards for any issue not specifically covered by these rules. In case of a conflict, the rules in this document shall take precedence.


2.  QSL cards are not required, however verification of contacts may be done at the discretion of the CSVHF Awards committee. All decisions of the committee are final.


3.  Entries may be on the CSVHF entry form (or copies thereof), or in a form that conveys all of the same information. If mailed in, please sign and date. Electronic entries via email are also acceptable. For instance, sending along the offered .xls spreadsheet (with your callsign in the file name) is another option.


4.  An applicant may submit entries from multiple locations or combine them into one Rover entry.


5.  Entries must be one band per page. Each page must clearly show the following information for each state or province being claimed:

Callsign, Date, Time, and Propagation mode.

      Mail entries to:


    Mike King KM0T     email to Mike's callsign at

    472 13th Street SW
    Sioux Center, IA 51250