Changing the WiMAC Channel – ProdataKey, Inc.

Integrator

The WiMAC chip uses channels 11 through 25, which overlap with Wi-Fi channels in the 2.4 GHz range and may cause interference. When the chip is set to Auto, the Cloud Node will select the best channel between 11 and 23.

If you experience persistent communication interference and want to change it, select a specific channel instead of Auto. It will remain on that channel. We recommend using channels 15, 20, or 25. Perform a spectrum analysis over time to identify the best channel. You can also use a third-party tool to determine the best channel.

Here are some recommended spectrum analysis tools:

Windows: NetSpot for Windows
MAC: NetSpot for MAC
Android: NetSpot for Android
iOS: AirPort Utility

If repositioning the antennas doesn’t help with persistent communication drops, manually changing the channel may help avoid interference.

1. Identify the clearest channel by completing a spectrum survey over time (typically channels 15, 20, or 25)

2. Navigate to the Diagnostics tab

3. Select Change Channel

4. Select your target channel and select Save

These changes can cause downtime and may take significant time to complete the sync and reconnection process. Ensure the system is synced beforehand for a seamless transition to Continuity Mode. Continuity Settings default to 3 days before Ecard fall-back, but they can be adjusted to up to 14 days in System Settings.

NOTE: If the connection doesn’t reconnect, try switching back to Auto or choosing a different channel.

What is a Mesh Network?

PDK’s WiMAC uses a mesh network to connect wireless controllers to the Cloud Node. Controllers will find a path back to the Cloud Node through other controllers. The connection is dynamic and will change. Rather than requiring every Controller to communicate directly with the Cloud Node, Controllers can route data through neighboring ones. If a Controller loses a connection path to the Cloud Node, the mesh network will work to find the best new path.

Wireless Best Practices & Troubleshooting

To keep your Wireless Controllers connected as reliably as possible, follow these best practices.

Before installation, use a Range Test to find the optimal location for the Wireless Controllers. More information about the Range Test Kit is available here.
Cloud Nodes should be installed in a central location to maximize coverage.
Environmental factors can cause wireless interference. Avoid placing antennas near concrete, brick, steel, elevator shafts, or heavy metal enclosures.
Do not install 2.4 GHz Wireless devices directly next to one another.
- Troubleshooting Tip: If you experience persistent communication loss with nearby wireless devices, remove one antenna to see if the signal improves.

If your Wireless Connection is unstable, attach a battery to the Wireless Controller and move it closer to the Cloud Node to test the connection. If it improves, use a Range Test Kit to find the location with the best connection at your site.

Diagnostics Page

The Diagnostics Page displays a visual representation of the Cloud Node and Controllers attached to the system, by connection type. More information about the Diagnostics page can be found here.

WiMAC Tool

The WiMAC Tool is used to range-test your wireless network or to configure Network Settings. More information can be found here.