According to Scott Fowler, in an article about former Panthers announcer applying for a job with the Ravens...
what that job pays, incidentally, when the Ravens posted it publicly they said the salary would be $4,000 to $5,000 per game. An NFL season consists of 20-24 games, including the preseason and potential playoff games, so it will end up somewhere between $80,000 and $120,000 a year. The person hired will be an independent contractor, which is commonplace in the NFL these days for team broadcasters, and also have other radio and TV hosting assignments.
https://www.charlotteobserver.com/sports/nfl/carolina-panthers/article315839800.html