If your pledge is $75 or more per month (or $450 one time), then you are an eligible Half Day sponsor. If your pledge is $150 or more per month (or $900 one time), you could take advantage of the Full Day sponsorship. Day Sponsors underwrite a complete day or half-day of our operating (broadcasting) expenses. Day Sponsors receive personal :30 messages (birthdays, anniversaries, weddings and other special events) on the air.