| UTC | |
| USA Pacific | |
| Japan |
Contact with JA3YBK:
| Date | Call | Grid | Country | Mode | Band | Frequency |
|---|---|---|---|---|---|---|
| 28 Mar 10 | JA3YBK | PM74 | Japan | USB | 15m | 21.305000 |
| 20 Feb 10 | JA3YBK | PM74 | Japan | CW | 40m | 7.032398 |
| 29 Nov 09 | JA3YBK | PM74 | Japan | CW | 40m | 7.027298 |
| 25 Oct 09 | JA3YBK | PM74 | Japan | USB | 15m | 21.324320 |
| 24 Oct 09 | JA3YBK | PM74 | Japan | USB | 15m | 21.314000 |
| 28 Mar 09 | JA3YBK | PM84oq | Japan | LSB | 80m | 3.804000 |
| 08 Mar 09 | JA3YBK | PM84oq | Japan | LSB | 40m | 7.066000 |
| 22 Feb 09 | JA3YBK | PM74oq | Japan | CW | 15m | 21.029008 |
| 21 Feb 09 | JA3YBK | PM74oq | Japan | CW | 40m | 7.025997 |
| 21 Feb 09 | JA3YBK | PM74oq | Japan | CW | 20m | 14.031969 |
| 26 Oct 08 | JA3YBK | PM74oq | Japan | USB | 15m | 21.236000 |