DZSO

{{Use Philippine English|date=January 2023}}

{{Use mdy dates|date=January 2023}}

{{Infobox radio station

| name = Bombo Radyo La Union

| callsign = DZSO

| logo = bombo-radyo-launion-amfmph.jpeg

| city = San Fernando

| area = La Union, Benguet and surrounding areas

| branding = DZSO Bombo Radyo

| airdate = 1985

| frequency = 720 kHz

| format = News, Public Affairs, Talk, Drama

| language = Ilocano, Filipino

| licensing_authority = NTC

| power = 5,000 watts

| class =

| callsign_meaning = San FernandO

| network = Bombo Radyo

| owner = Bombo Radyo Philippines

| licensee = Newsounds Broadcasting Network, Inc.

| webcast = [http://www.bomboradyo.com/launion Listen Live]

| website = [http://www.bomboradyo.com/launion Bombo Radyo La Union]

| coordinates = {{Coord|16|35|52|N|120|18|57|E|type:landmark}}

}}

DZSO (720 AM) Bombo Radyo is a radio station owned and operated by Bombo Radyo Philippines through its licensee Newsounds Broadcasting Network. Its studio and transmitter are located at Bombo Radyo Broadcast Center, Pennsylvania Ave., Parian, San Fernando, La Union. DZSO operates daily from 4:00 AM to 9:30 PM.[https://pdea.gov.ph/images/REGIONALOFFICES/RO1/RO1_JUNE_2017_PECI_ACTIVITIES.pdf Music Against Drugs][http://old-r1.denr.gov.ph/index.php/86-region-news-items/466-denr-ilocos-region-partners-and-stakeholders-given-recognition-during-gawad-parangal-rites DENR Ilocos Region partners and stakeholders given recognition during Gawad Parangal rites]{{Dead link|date=January 2024 |bot=InternetArchiveBot |fix-attempted=yes }}[https://www.philstar.com/other-sections/education-and-home/2019/02/07/1891489/child-conflict-law-cicl The child in conflict with the law (CICL) ][https://www.philstar.com/nation/2016/04/10/1571529/la-union-gubernatorial-bets-face-debate La Union gubernatorial bets to face off in debate][https://mb.com.ph/2020/06/30/manila-bulletin-wins-three-cmma-awards/ Manila Bulletin wins three CMMA awards]