1. Go to your Podbean dashboard, and click “Settings”→”Feed”->”Advanced Feed Settings” to add your new feed URL in the "Redirect to a New Feed" field.

2. Click "Update Options" to save your changes.

When you want to remove the 301 redirect:

You just need to delete the link URL in the "Redirect to a New Feed" field. Then clear your browser cache and visit your Podbean RSS feed.