Sydney is currently split into two distinct radio settings.

* **Narrow**: This is primarily used in the Northeast Sydney and Newcastle

* **Wide**: This is used in Western Sydney, Southwest Sydney, and the Blue Mountains.

There is a new setting that is being tested by several people dubbed "Mid".

| Setting | Mid |

| ---------------- | ------- |

| Frequency (MHz) | 915.075 |

| Bandwidth (kHz) | 125.0 |

| Spreading Factor | 9 |

| Coding Rate | 5 |

Problems that are trying to be solved:

1. Sit at the bottom of the AU ISM Band and avoid conflicts with [LoRaWAN](https://www.thethingsnetwork.org/country/australia/) gear (which starts at 915.200 MHz).

2. More speed benefits closer to Narrow; by increasing the Bandwidth

3. Distance benefits of Wide; Western Sydney has a sparse node distribution with long distance links.

4. Find common settings that the whole Sydney Mesh can agree upon to resolve the Wide/Narrow split.

If you want to temporarily test these settings on a router:

This changes a repeater to the mid settings for 120 mins. It will revert to the previously configured settings after 2 hours or if the repeater is rebooted.