Knox County
By the numbers: about 36,070 residents (2023 U.S. Census estimate) · 91 licensed amateur radio operators — 46 Technician, 26 General, 1 Advanced, 18 Extra · 2 licensed club stations · 18 more licenses in the FCC's two-year renewal grace period (FCC 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
We don’t yet have a repeater listed in Knox County itself. These 4 machines sit in the bordering counties, and VHF/UHF repeaters routinely reach well past a county line — from higher ground you can often work several of them:
| Frequency | Offset | Tone | Mode | County | Location |
|---|---|---|---|---|---|
| 147.315 | +0.6 | 107.2 | FM | Daviess | Washington |
| 443.225 | +5.0 | 107.2 | FM | Daviess | Washington |
| 146.685 | - | 151.4 | FM | Sullivan | West Terre Haute |
| 442.0875 | — | — | FM | Sullivan | Sullivan |
View Knox County on RepeaterBookBrowse all Indiana repeaters
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.
Nearby counties
Knox County borders 5 other counties. Repeaters and clubs just across the line are usually well within range, so it is worth checking them too: