DWJM-FM was originally launched as a smooth jazz radio station, Citylite 88.3 under the callsign DWCT-FM, and owned by Francis Lumen, With its studios at Strata 2000 Bldg. It played smooth jazz and rhythm and blues from May 27, 1988 to June 30, 2003 competing directly with 105.1 Crossover and Kiss Jazz 101.1 (now Yes FM 101.1). On October 1996, Citylite 88.3 launched on the internet with its live streaming on the old website, After 2 years, Raven Broadcasting Corporation was acquired by The Radio Partners, Inc. while Francis Lumen switched to Joey @ Rhythms 92.3 (now U92). In March 2001 - June 2003, it was known as Smooth Jazz Citylite 88.3. On June 30, 2003, after 15 years on DWCT-FM, Citylite 88.3 bids farewell.

As Jam 88.3 (2003-present)

In July 1, 2003, Raven Broadcasting Corporation relaunched the station as Jam 88.3 (it also changed its callsign to DWJM) to cater to a larger more advertiser-friendly audience. Jam 88.3 was originally launched as an "easy listening pop" station. Within a year of launching, the station quickly established itself as a popular trend-setting station in The Philippines with unique programs and segments. Jam has a reputation for discovering new talent and music. It is largely recognized in the Philippine music industry for starting the Acoustic music trend of 2003 and 2004. The station can also be credited for propelling the return to prominence of OPM ( Original Pilipino Music ) beginning in 2005.

The radio format has since developed into a mixture of music - collectively defined as lite pop alternative, then dropping the entire "less talk more music" feel.

Dj's

* Lambert * Mike
* Tracy
* Migs
* Eric
* Hilary
* Scotty
* Lana
* Gabriel

FM RADIO STATION

Jam 88.3	Wave 89.1	Magic 89.9	Love Radio
Energyfm 91.5	xFM 92.3	Rx 93.1	iFM 93.9
Mellow 94.7	DWRT 95.5	DWRK 96.3	Brgy LS 97.1
Home radio 97.9	99.5 rt	RJ 100	Yes FM 101.1
Star FM 102.7	103.5 k-Lite	Crossover 105.1	DWLA 105.9
Dream 106.7

DWKY, under the brand 91.5 Energy FM, is a music FM radio station owned and operated by Ultrasonic Broadcasting System Inc. (UBSI) in the Philippines. The station's studio is located at Pasig City. Energy FM is the third radio station to have a Contemporary Hit Radio format next to 99.5 RT and U92.

Background
In 1984, 91.5 Energy FM use to be known as KY 91 5 under Mabuhay Broadcasting System, Inc. (MBSI) which also owned DZXQ 1350 AM playing classic rock hits during the late 80's and the rest of the 90's.

Then in 1998, KY 91 5 became K91 FM playing mainly novelty and pop music.

 In October 2003, Ultrasonic Broadcasting System acquired the FM operations of MBSI, and DWKY-FM was relaunched under a new name, 91.5 Energy FM in order to compete with 102.7 Star FM, WRR 101.9 For Life! (now Tambayan 101.9), 101.1 YES! FM, 93.9 iFM and 90.7 Love Radio. * In July 2006, The Edge Radio of United Christian Broadcasters occupied the 6pm - 6am timeslot of Energy FM. But on November 2006, UBSI reclaimed the said block and resumed broadcast on a 24-hour basis.

==Disc jockeys==
*Sgt. Mark
*Cathy G.
*Djay Mac
*Pvt Ryan
*[[FU|Mister Fu]]
*Baby James Kulas

FM RADIO STATION

Jam 88.3	Wave 89.1	Magic 89.9	Love Radio
Energyfm 91.5	xFM 92.3	Rx 93.1	iFM 93.9
Mellow 94.7	DWRT 95.5	DWRK 96.3	Brgy LS 97.1
Home radio 97.9	99.5 rt	RJ 100	Yes FM 101.1
Star FM 102.7	103.5 k-Lite	Crossover 105.1	DWLA 105.9
Dream 106.7