UHF. 7 stations listed.
| Station | Country | Location | Power (kW) | Schedule (UTC) | Language |
|---|---|---|---|---|---|
| Bluebird 02 Mode U - Transmitter - Downlink | International | — | — | — | — |
| Bluebird 06 Mode U - Unconfirmed Transmitter 4 - Downlink | International | — | — | — | — |
| Bluebird 08 Mode U - Unconfirmed Transmitter - Downlink | United States | — | — | — | — |
| Bluebird 10 Mode U - FSK 2400 - Downlink | United States | — | — | — | — |
| BLUEBIRD-11 Mode U - FSK2k4 - Light-1 framing - Downlink | United States | — | — | — | — |
| BLUEBIRD-12 Mode U - FSK2k4 - Light-1 framing - Downlink | United States | — | — | — | — |
| BLUEBIRD-13 Mode U - FSK2k4 - Light-1 framing - Downlink | United States | — | — | — | — |