WDER (1320 AM) and WDER-FM (92.1 FM) are radio stations broadcasting a Christian radio format. They are the flagship stations of the "Life Changing Radio" network. WDER AM is licensed to Derry, New Hampshire, and WDER-FM is licensed to Peterborough, New Hampshire. The stations are owned by Blount Communications, Inc. of NH and feature programming from Salem Radio Network.