Jam 88.3, is a radio station owned and operated by Raven Broadcasting Corporation, one of the partner stations of Tiger 22 Media. This is the real Alternative Music authority in Philippine radio. The forefront in cutting-edge programming, their music caters to those who crave for something that is beyond the norms, an aural ecstatic adventure.

Slogan: "New Music Alternative."

Format: Entertainment.

Genre: Modern Rock, Rock, Indie Rock, Alternative.

First air date: July 26, 1986

City: Manila

Callsign: DWJM

Owner: Raven Broadcasting Corporation

Broadcast area: Mega Manila and surrounding areas



  • Alex Aloirra
    Maria Theresa Dobey. I really like listening to this station Jam 88.3 fm. I really enjoy the variety of music that you pleay everyday. Have a good night. More rock and alternative of the 90s and 00s.
  • Darrel Aumentado
    No live jam broadcast on twitch? Offline eh
  • Robert Cabalbal Glase
    Radio Jam is difficult here, without emotions. I love your alternative music!
  • Rebecca Barba
    88.3 jam you know how to cheer up your listeners, I love your jam jokes!
  • Alan Mariano
    good morning davao from christchurch new zealand
  • Antonio Santos
    Welcome back, Jam! I like that you seem to have focused your new format on the old weekend jam. Be always with you and I will be calm.
  • Evelyn Garcia
    There are really few interesting online radio stations, but Jam is clearly the best! Jam, thank you for your efforts to please the listeners.