VK4RBY – Mackay:
| Callsign | TX Frequency | Offset | Mode | Status | Links |
|---|---|---|---|---|---|
| VK4RBY B | 438.6000MHz | -5 MHz | DV | Operational | Findu.com ircDDB APRS |
| VK4RBY C | 146.6500MHz | -600 Khz | DV | Operational | Findu.com ircDDB APRS |
| VK4RBY G | Internet Gateway | DV | Operational |
Sponsors:
 |
RCS VK4DW Mackay Amateur Radio Association Inc. |
