KDNZ is a commercial radio station

Radio station

Radio broadcasting is a one-way wireless transmission over radio waves intended to reach a wide audience. Stations can be linked in radio networks to broadcast a common radio format, either in broadcast syndication or simulcast or both...

 licensed to serve the Cedar Falls, Iowa

Cedar Falls, Iowa

Cedar Falls is a city in Black Hawk County, Iowa, United States, and it is home to one of Iowa's three public universities, the University of Northern Iowa. The population was 39,260 in the 2010 census, an increase from the 36,145 population in the 2000 census...

 area. The station primarily broadcasts a Spanish language format but airs Minnesota Twins baseball and some sports overflow from sister station KCNZ

KCNZ

KCNZ is a commercial radio station licensed to serve the community of Cedar Falls, Iowa. The station primarily broadcasts a sports radio format. KCNZ is owned by Fife Communication Company LLC and is an affiliate of Fox Sports Radio. KCNZ carries The Dan Patrick Show and The Jim Rome Show...

. KDNZ is licensed to Fife Communication Company, LLC.

During daylight hours, KDNZ uses two towers in a directional array

Directional array

In broadcast engineering, directional array refers to an antenna array arranged such that the superposition of the electromagnetic waves produce a predictable electromagnetic field...

 that concentrates the broadcast signal southeast toward Cedar Rapids, Iowa

Cedar Rapids, Iowa

Cedar Rapids is the second largest city in Iowa and is the county seat of Linn County. The city lies on both banks of the Cedar River, north of Iowa City and east of Des Moines, the state's capital and largest city...

. At night, three towers are used
to create a three lobe pattern that slightly favors the west.