KDRB

KDRB
	Des Moines, Iowa; United States;
Broadcast area	Des Moines metropolitan area
Frequency	100.3 MHz (HD Radio)
Branding	100.3 The Bus
Programming
Format	Adult hits
Subchannels	HD2: WHO simulcast (News/Talk)
Ownership
Owner	iHeartMedia; (iHM Licenses, LLC);
Sister stations	KKDM, KXNO, KXNO-FM, WHO, KASI, KCYZ
History
First air date	1948 (as WHO-FM)
Former call signs	WHO-FM (1948–1973); KLYF (1973–1998); KMXD (1998–2006)
Call sign meaning	Des Moines' R&B; calls carried over from 106.3, though not their associated format, and backronymed, with "RB" now meaning 'radio bus'
Technical information
Licensing authority	FCC
Facility ID	51332
Class	C
ERP	100,000 watts
HAAT	547 meters (1,795 ft)
Links
Public license information	Public file; LMS;
Webcast	Listen Live
Website	thebusfm.iheart.com

KDRB (100.3 MHz "100.3 The Bus") is a commercial FM radio station in Des Moines, Iowa. It airs an adult hits radio format and is owned by iHeartMedia, carrying its own variety hits format, similar to the franchised Jack FM branding. KDRB is the flagship station for the Iowa State Cyclones.

The station's studios are located at 2141 Grand Avenue in Des Moines along with iHeartMedia's other Des Moines stations, and its transmitter is located on Northwest 2nd Street, near Ankeny Boulevard in Alleman. Broadcasting in HD Radio, its second subchannel carries its mother station WHO (1040), which first signed on what was their formerly similarly-called FM counterpart in 1948.