WRNX (100.9 FM) is an American radio station licensed to serve the community of Amherst, Massachusetts.

[5] In addition to its usual music programming, WRNX has served as the flagship station for University of Massachusetts Amherst athletics broadcasts.

In spring 2003, Pamal Broadcasting Ltd. (James Morrell, chairman/CEO) reached an agreement to acquire WPNI and WRNX from Western Massachusetts Radio Co. (Thomas G. Davis, president), for a reported sale price of $8 million.

[7] The broker for this transaction was Doug Ferber of Star Media Group, Inc. At the time of the purchase, WRNX broadcast a rock-leaning adult album alternative music format.

[9] The other stations in the deal were WBPM and WGHQ in upstate New York, WZRT and WSYB in Rutland, Vermont, and WPYR in Baton Rouge, Louisiana.