eoclist
| County | Callsign | HF Frequency | Mode |
|---|---|---|---|
| Baker | K7OEM | ||
| Crook | N7CCO | ||
| Grant | W7GCO | 3.955 | SSB |
| Harney | W7HRN | ||
| Malheur | K7RHB | ||
| Morrow | KC7SOY | 3.955 | SSB |
| Umatilla | KC7RWC | ||
| Union | K7UNI | 3.955 | SSB |
| K7UNI | 3.587 | Pactor P2P | |
| Walla Walla | WA7WWC | ||
| Wheeler | KG7EZO | 3.955 | SSB |
| KG7EZO | 3.587 | Pactor P2P |
(Stations with no frequency listed have not confirmed HF participation)