Welcome to RadioReference. I believe that scanner was designed for racetrack use but you may be able to receive other stuff in your area.
Items in blue and underlined are links:
SC180 - The RadioReference Wiki
Your scanner will not track a trunked system which Memphis/Shelby uses. Try entering the other frequencies in the link below. I see a lot of fire alerting frequencies such as 852.30000 Fire Vocal Alarm & Station Alerting, 154.23500 Fire Primary Battalion & Ambulance Paging, 855.23750 Fire - Vocal Alarm, 154.31000 Germantown Fire Dispatch Simulcast, etc. and a lot of hospital stuff.
Shelby County, Tennessee (TN) Scanner Frequencies and Radio Frequency Reference
Any frequency not part of a trunked system or using a mode of P25 you should be able to listen to, provided you are within range. Not much, but a place to start with what you have.
Also that scanner may have a search mode where you can search for whatever is out there.
Also note the County Quick Jumps at the top of the page. You could also check the database for your surrounding counties/cities for non-digital/non-trunked frequencies.
And of course it is a great race scanner if you go to races or live near a track.