Knox County

By the numbers: about 36,070 residents (2023 U.S. Census estimate) · roughly 111 licensed amateur radio operators (FCC active licenses, by ZIP).

Ham Radio Clubs

• Old Post Amateur Radio Society (W9EOC): Facebook Group | QRZ

  Meetings: 1st Wednesday monthly at 7:30 PM — Civil Defense Office, Vincennes, IN

  Operates the 146.670 MHz (−, PL 91.5) and 443.675 MHz (PL 91.5) repeaters in Vincennes.

Repeaters

View the repeater listing for Knox County on RepeaterBook (opens in a new tab):

Emergency Communications

Knox County is part of Indiana ARES District 10 (which mirrors IDHS District 10). Learn how amateur radio supports emergencies in Indiana — ARES, RACES, and Skywarn — on our EmComm page.

Severe-weather watches and warnings for Knox County come from the National Weather Service — NWS Indianapolis office. Trained Skywarn spotters relay reports during severe weather; see our EmComm page.

The information on this page may not be fully up to date. If you notice anything incorrect or missing, please email campbell@indianahamradio.com with the correction.