{{Infobox radio station
| name = WLER
| image =
| image_size =
| alt =
| caption =
| city = [[Butler, Pennsylvania]]
| area = Altoona, PA
| branding =
| slogan =
| frequency = 97.7 [[Megahertz|MHz]]
| translator =
| repeater =
| airdate = August 4, 1954
| last airdate =
| format = [[Mainstream Rock]]
| language = English
| power =
| erp = 4.6 kW
| haat =
| class = A
| facility_id = 71242
| coordinates = {{coord|40.8975|-79.8892|type:landmark_region:US_source:FCC|display=inline,title}}
| callsign_meaning =
| former_callsigns =
| former_frequencies =
| affiliations =
| operator =
| owner =
| licensee = St Barnabas Broadcasting, Inc
| sister_stations =
| webcast =
| website = [https://www.977rocks.com/] 977rocks.com
}}

'''WLER''' is an American ([[FM Broadcasting|FM]]) [[radio station]] licensed by the [[Federal Communications Commission|FCC]] to serve the community of [[Butler, Pennsylvania]] on the frequency of 97.7 [[Megahertz|MHz]] . The station license is assigned to St Barnabas Broadcasting, Inc. WLER-FM) airs a [[Mainstream Rock]] format.

The [[FCC]] first licensed this station to begin operations on August 4, 1954 using callsign WBUT-FM.<ref name=fcchistory>{{cite web|url=https://licensing.fcc.gov/cgi-bin/prod/cdbs/forms/prod/getimportletter_exh.cgi?import_letter_id=81893|publisher=Federal Communications Commission|title=FCC History card for WLER}}</ref>

The station has held the WLER callsign since May 30, 1979.<ref name="fcccsh">{{cite web |title=Call Sign History|url= http://licensing.fcc.gov/cgi-bin/ws.exe/prod/cdbs/pubacc/prod/call_hist.pl?Facility_id=71242&Callsign=WLER |work=FCC Media Bureau CDBS Public Access Database}}</ref>
==Call signs used at this station==
{| class="wikitable"
|-
! As Of
! Call Sign
|-
||| WBUTFM ||
|-
|July 20, 1978|| WLER ||
|-
|May 30, 1979|| WLER-FM ||
|}
==References==
{{reflist}}
==External links==
* [https://www.977rocks.com/ 977rocks.com] Official WLER FM Website
* FCC Public Inspection File online [https://publicfiles.fcc.gov/fm-profile/wler]
* {{ FM station data|WLER}}
{{-}}
[[Category:Radio stations in Pennsylvania]]
[[Category:Radio stations established in 1954]]
[[Category:1954 establishments in Pennsylvania]]
[[Category: Radio stations in the United States]]
{{ Pennsylvania-radio-station-stub}}