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City Allentown, Pennsylvania
Broadcast area Lehigh Valley, Pennsylvania
Branding WDIY-FM
Slogan "Lehigh Valley's Community NPR Station"
Frequency 88.1 MHz
Translator(s) See § Translators
First air date January 8, 1995
Format Community/public radio
Language(s) English
ERP 300 watts
HAAT 257 meters (843 ft)
Class A
Facility ID 36992
Transmitter coordinates 40°33′54.00″N 75°26′26.00″W / 40.5650000°N 75.4405556°W / 40.5650000; -75.4405556 (WDIY)
Callsign meaning Do It Yourself
Affiliations National Public Radio
Owner Lehigh Valley Community Broadcasters Association, Inc.
Webcast Listen Live
Website www.wdiy.org

WDIY (88.1 FM) is a community public radio station licensed to Allentown, Pennsylvania, with studios in Bethlehem. The station serves the Lehigh Valley region of eastern Pennsylvania and western Warren County in New Jersey.

WDIY has an air staff of over 100 volunteers and a paid management staff. It has been broadcasting since January 8, 1995. The station is licensed to Lehigh Valley Community Broadcasters Association, Inc., a nonprofit organization. The station's mission "is to engage the Lehigh Valley community through a wide-ranging exchange of music, arts, news and culturally diverse information."

While WHYY-FM in Philadelphia puts a grade B signal into Allentown and WVIA-FM in Scranton has long operated translators in Allentown and Bethlehem, the Lehigh Valley lacked an NPR station that specifically served it until WDIY's arrival.

In 2015, the station tripled the broadcast power of its main frequency at 88.1 FM from 100 watts to 300 watts.[1]


WDIY's program schedule includes NPR's Morning Edition, Fresh Air with Terry Gross and All Things Considered weekdays, with classical music and adult album alternative music between the news shows. Early evening programming during the week includes locally-produced public affairs programs as well as NPR's TED Radio Hour and On the Media. Weeknights and weekends, the station features a variety of music, including folk, blues, electronic, jazz, world music, alternative rock, classical, avant-garde and ethnic music. The station also carries NPR's Weekend Edition on Saturday and Sunday mornings and Ask Me Another on Saturday morning.


WDIY began broadcasting on 88.1 FM at 100 watts, which was fairly modest for a full NPR member station. Even with its antenna on South Mountain at 843 feet above the average local terrain, the station's signal was for the most part limited to Lehigh and Northampton counties before its power increase in 2015. Easton, the area's third-largest city, was only receiving a grade B signal. For this reason, WDIY employed two translators. One, located at 93.9, serves the area around Easton, as well as western Warren County. The station's other translator at 93.7 serves the Trexlertown and Fogelsville areas in western Lehigh County. With its increase to 300 watts, the station can now be heard over a 70-mile area, from Clinton, New Jersey, to Reading, Pennsylvania.

Call sign Frequency
City of license Facility
m (ft)
Class Transmitter coordinates FCC info
W229AO 93.7 Fogelsville, Pennsylvania 88255 80 −5 m (−16 ft) D 40°35′6″N 75°37′2″W / 40.58500°N 75.61722°W / 40.58500; -75.61722 (W229AO) FCC
W230AG 93.9 Easton, Pennsylvania 36994 7 −7 m (−23 ft) D 40°41′53″N 75°12′30″W / 40.69806°N 75.20833°W / 40.69806; -75.20833 (W230AG) FCC

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