| UTC | |
| USA Pacific | |
| Japan |
| Date | Call | Grid | Mode | Band | Frequency |
|---|---|---|---|---|---|
| 07 Oct 20 | KL7HFI | CO28rj | FT8 | 40m | 7.076650 |
| 09 Feb 14 | KL7IWC | CO28qi | RTTY | 15m | 21.086718 |
| 29 Sep 12 | AL7L | CO28qi | RTTY | 10m | 28.084917 |
| 29 Mar 11 | KL2ZZ/AG | CO28rj | PSK31 | 40m | 7.036365 |
| 28 Mar 08 | KL7IWC | CO28qi | PSK31 | 80m | 3.581542 |