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CityDubuque, Iowa
Broadcast areaTri-States (Illinois, Iowa, Wisconsin)
BrandingVoice of the Tristates
Frequency1370 kHz
First air dateMay 4, 1941
FormatAdult Standards/MOR
Power5,000 watts
(1 tower daytime)
(4 towers nighttime)
Facility ID73662
Transmitter coordinates42°29′6″N 90°38′39″W / 42.48500°N 90.64417°W / 42.48500; -90.64417Coordinates: 42°29′6″N 90°38′39″W / 42.48500°N 90.64417°W / 42.48500; -90.64417
Callsign meaningK Dubuque Telegraph Herald (former owner)
AffiliationsCBS Radio
OwnerRadio Dubuque, Inc.
Sister stationsKATF, KGRR, WVRE
WebcastListen Live

KDTH AM 1370 is an AM radio station based in Dubuque, Iowa. The station is owned by Radio Dubuque. KDTH is a "full service" local radio station with a full-time news department, sports director, farm director and staff of local personalities, many of whom have been part of the Dubuque radio scene for more than 30 years. Its transmitter and towers are located across the Mississippi River from Dubuque in East Dubuque, Illinois just south of the U.S. 20 Bridge.[1] The daytime signal is 5 kilowatts non-directional utilizing one tower[2] while the nighttime signal is 5000 watts directional utilizing all four towers on-site to direct the signal primarily to the north.[3]

The KDTH music format is described as Legendary Performers - Unforgettable Songs and it includes familiar oldies of the 1950s, '60s and '70s blended with recordings by Sinatra, Bennett, Nat King Cole and others plus contemporary talents like Diana Krall, Jane Monheim, Rod Stewart, Carly Simon, Michael Buble and others who record songs from what is now called The Great American Songbook.

The station targets the large 45+ demographic in the tri-state area of Iowa, Wisconsin & Illinois.


On Sunday, May 4, 1941 KDTH began broadcasting. The station was housed at 8th and Bluff Streets in Dubuque - where it has remained to this day. The station broadcast with 1000 watts. The transmitter was located in East Dubuque, Illinois, and it featured a three tower array.

The station became established as an important news and information source in the Dubuque area. People like Bob Gribben, Betty Thomas, Gerald “Red” McAleece, and Gordon Kilgore became familiar names to a large part of the population.

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