| UTC | |
| USA Pacific | |
| Japan | 
| Date | Call | Grid | Mode | Band | Frequency | 
|---|---|---|---|---|---|
| 04 Nov 20 | OK1WCF | JO70wn | FT8 | 40m | 7.076338 | 
| 17 Mar 14 | OK1PJB | JO70ea | PSK31 | 10m | 28.120877 | 
| 09 Feb 13 | OK1WCF | JO70wn | PSK31 | 15m | 21.070937 | 
| 09 Feb 10 | OK1ACF | JO70wf | PSK31 | 20m | 14.070000 | 
| 09 Feb 10 | OK1KM | JO70wf | PSK31 | 20m | 14.072146 | 
| 29 Oct 09 | OK1AUZ | JO70te | PSK31 | 20m | 14.072444 | 
| 06 Oct 08 | OK1IVY | JO70lc | PSK31 | 20m | 14.072352 | 
| 17 May 08 | OK1VSL | JO70am | PSK31 | 20m | 14.071585 | 
| 25 Mar 08 | OK1AUZ | JO70te | PSK31 | 20m | 14.070334 |