====== Tuning A Radio ======

| **Field** | daily life and entertainment |
| **Went Obsolete** | Radios used to have analog tuners. Adjusting the frequency to get optimal fidelity in the signal was part of life every time you changed the channel |
| **Made Obsolete By** | Digital receivers |
| **Knowledge Assumed** | How stations sound when they are off band |
| **When useful** | If you ever have to use an old radio |

Radios used to have analog tuners. Every time you changed the channel, you had to optimize the frequency for the new station. Bringing in a weak signal could be a real challenge.

Some radios including the Sony Dream Machine Alarm Clock still use analog tuners.