Ultrasonic Broadcasting System, Inc. (UBSI) is a Philippine radio network owned by the SYSU Group of Companies, a conglomerate owned by the Sy family. UBSI owns a number of FM stations across the country under the Energy FM brand.Republic Act No. 8081Republic Act No. 11301

History UBSI was founded by the Sy family in 1991 with the launch of K-LOVE 1494.

In 1996, UBSI hired former station manager of DZMB and radio consultant Manuelito "Manny" F. Luzon as general manager. Under Luzon's management, he conceptualized a new FM network called Energy FM. It was launched first in Davao, followed by another station in Cebu (later transferred to 89.1 FM from 2003 to 2004) and in Naga.

In 2003, UBSI acquired the airtime lease of Metro Manila station DWKY 91.5 (owned by Mabuhay Broadcasting System, whom Luzon is also the FM operations consultant of the said company) and became 91.5 Energy FM. A year later in 2004, UBSI sold DWSS to FBS Radio Network, in exchange of the latter's stations in Dagupan and Cebu.1494 DWSS (Old Website)

In 2009, DWKY, together with its provincial stations, won in the 18th KBP Golden Dove Awards as Best FM Station of the year.

In 2011, a year after Luzon left the company for PBC, Energy FM officially transferred its Manila station to 106.7 FM under a transitional partnership with station owner Dream FM Network of Interactive Broadcast Media. UBSI operated under an airtime lease agreement of the station months later.Former TV5 owner expands footprint in FM radio business

UBSI radio stations

Branding Callsign Frequency Coverage Energy FM Manila DWET 106.7 MHz Metro Manila Energy FM Dagupan DWKT 90.3 MHz Dagupan Energy FM Naga DWBQ 106.3 MHz Naga Energy FM Kalibo DYUB 107.7 MHz Kalibo, Aklan Energy FM Dumaguete DYMD 93.7 MHz Dumaguete Energy FM Cebu DYLL 94.7 MHz Cebu Energy FM Toledo DYTD 92.7 MHz Toledo Energy FM Balamban 91.3 MHz Balamban Energy FM Pagadian DXUA 98.3 MHz Pagadian Energy FM Dipolog DXLJ 103.7 MHz Dipolog Energy FM Sindangan 90.7 MHz Sindangan Energy FM Gingoog DXQU 90.5 MHz Gingoog Energy FM Valencia DXJX 96.1 MHz Valencia Energy FM Davao DXDR 88.3 MHz Davao Energy FM Tagum DXKS 95.1 MHz Tagum Energy FM Digos DXNW 91.1 MHz Digos Energy FM Kidapawan DXUB 99.1 MHz Kidapawan Energy FM Koronadal DXUC 96.9 MHz Koronadal

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