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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

CSVHF Reflector

CSVHFS Members Reflector

Welcome to the Central States VHF Society membership reflector! For many years, the CSVHFS had an 80m net. It was fun and contributed to communication and camradarie. The 80m net disappeared a long time ago. This new reflector is a way for our members to share and learn with other CSVHFS members.


Subscribers are free to post whatever they think would have specific interest to other CSVHFS members. This could be questions or thoughts about anything related to VHF+ weak-signal operations. Propagation reports are encouraged PROVIDED your posting includes: Time, frequency, DX-heard, and YOUR location. For Sale and want-to-by postings are welcome for appropriate gear. Please include "FS" or "WTB" in the subject line for those postings.


Consider this:  Subscribers and posters should assume that active VHF'ers are already subscribed to the VHF, WSVHF, Microwave, VHF-contesting, and Rover reflectors if they so wanted. As such, cross-posting is STRONGLY discouraged. Please make your postings specifically for your CSVHFS brethren.


Upon subscribing, you will receive an email with information similar to this webpage. Additionally, it will have a password that you'll need to access the archives and to edit your subscription options. You should consider keeping that email in an appropriate folder. You will receive monthly reminders, however.


To subscribe or unsubscribe, go to  You will supply your email address and it really helps if you supply a name or callsign.  Your subscription will be approved within a day.


To post, send an email to:    This email address is being protected from spambots. You need JavaScript enabled to view it.

Digest mode is available if you prefer to receive your reflector traffic in periodic bundles. Questions or concerns, contact your admin/moderator staff at:  
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Come join the conversation on the CSVHFS reflector!