5/15/23 Frequency assigned to KSD at 1000 watts
10/26/24 KFUO signs on licensed to Concordia Seminary
12/14/24 On air sharing time with KFUO begins
10/08/27 KFUO frequency changed to 1280 kHz, shared with KFVE
11/26/27 KFUO reassigned to 550 kHz
6/15/34 KSD & KFUO power increased to 5,000 watts
7/01/40 Frequency sharing with KFUO ended, KFUO assigned to 830 kHz
2/28/79 KSD control transfer to Combined Communications Corp.
3/19/84 KSD call letters changed to KUSA
9/93 KUSA control transfer to EZ Communications
10/04/93 KUSA call letters changed to KSD
8/96 KSD control transfer to American Radio Systems
1/27/97 KSD control transfer to CH Holdings
3/10/97 KUSA call letters changed to KTRS
2/15/2012 Control transfer to KTRS-AM License, LLC.

Call Letters:
KSD
KFUO
KUSA
KTRS

AM/FM:
AM