Winter 2026 Station Information Profile (SIP) on File with Nielsen
| Call Letter: | WISM-FM | |
| Frequency: | 98.1 | |
| Station Name: | Greatest Hits 98.1 | |
| Format: | Classic Hits | |
| Network(s): | IND | |
| City of License: | ALTOONA/EAU CLAIRE | |
| County of License: | Eau Claire | |
| Mailing Address: | 944 HARLEM ST ALTOONA, WI 54720 |
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| Phone: | 715-832-1530 | |
| Fax: | 715-832-5329 | |
| URL Address: | www.greatesthits981.com | |
| Broadcasts in HD: |
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| Internet Streams: |
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Winter 2026 Reminder:
You no longer need to submit program information to Nielsen.
To view the simulcast combos that have requested Total Line Reporting, click here .