| Clue | Source | Date |
|---|---|---|
| A measure of frequency | ||
| Kilohertz | ||
| Kilocycles per second | ||
| AM radio abbr | New York Times | 25 Oct 2020 |
| Letters on an AM dial | New York Times | 09 Jan 2018 |
| Letters on an AM dial | ||
| Radio freq. unit | New York Times | 10 Oct 2017 |
| AM frequency abbr | Wall Street Journal | 22 Feb 2017 |
| Radio freq. unit | ||
| AM frequency meas | The Chronicle of Higher Education | 02 Sep 2016 |
| Radio frequency abbr | New York Times | 08 Jul 2016 |
| AM frequency meas. | ||
| Radio frequency abbr. | ||
| Radio freq | New York Times | 18 Oct 2015 |
| Radio freq. | ||
| AM radio abbr. | ||
| AM frequency meas. | ||
| AM frequency meas. | ||
| AM frequency meas. | ||
| Radio-dial abbr. | ||
| Radio abbr. | ||
| Frequency meas. | ||
| AM radio frequency abbr. | ||
| Frequency meas. | ||
| Freq. unit | ||
| AM abbr. | ||
| What AM radio frequencies are given in | ||
| Radio abbr. | ||
| Unit of radio frequency: Abbr. |