With the growth of the network, bases located in the north can interfere with some Victorian coastal stations during skeds. To overcome this, TMR recently reassigned working channels.
| Base | Old Channel | New Channel |
|---|---|---|
| Mangana | 67 | 67 (No change) |
| Maria Island | 68 | 69 |
| South Sister | 69 | 68 |
| Flinders Island | 68 | 69 |
| Maatsuyker Island | 68 | |
| Elliot Range | 67 | 67 (no change) |
| Mt Read | 68 | 68 (no change) |
| Three Hummock Island | 67 | 69 (when TMR operates base) |
| North Coast | 69 | 68 |
