Hamilton County

By the numbers: about 371,645 residents (2023 U.S. Census estimate) · roughly 917 licensed amateur radio operators (FCC active licenses, by ZIP).

Ham Radio Clubs

• Hamilton County ARES (N9EOC): hcinares.org | Facebook

  Nets: Sundays 8:00 PM on 145.170 MHz and 443.550 MHz (77 Hz tone)

  Repeater(s): 145.170 MHz (PL 77.0) FM, Hamilton County (K9EOC); 443.550 MHz (PL 77.0) FM, Hamilton County (K9EOC)

• Central Indiana Amateur Radio Association (CIARA) (N9EOC): n9eoc.org | ciara.n9eoc@gmail.com | Facebook | Facebook Group | QRZ

  Meetings: 1st Saturday monthly at 9:00 AM — Noblesville Fire Station 76, 16800 Hazel Dell Rd, Noblesville, IN

  Nets: Sundays 8:00 PM on 145.170 MHz and 443.550 MHz (77 Hz tone)

  License exams: The club runs VE test sessions in Noblesville — under the ARRL VEC at the Hamilton County Sheriff's office, 18100 Cumberland Rd, on Saturdays at 10:30 AM at least four times a year ($15, exact cash). Details

Repeaters

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

Emergency Communications

Hamilton County is part of Indiana ARES District 5 (which mirrors IDHS District 5). Learn how amateur radio supports emergencies in Indiana — ARES, RACES, and Skywarn — on our EmComm page.

Severe-weather watches and warnings for Hamilton 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.