Wi-Fi HaLow Radio Technology 16
Best Practices: Auto-Select Channel Tool
The Auto-Select Channel tool is provided within the Instrument Settings in Trimble Access. This tool
helps you select the optimum channel for wherever you currently are located.
Since the Wi-Fi HaLow radio operates in license-free ISM band, it is possible that other radio devices
that use the ISM band cause interference issues which could be perceived by laggy video when the
signal bar in the application indicates a strong signal.
In these scenarios, the user has the option of changing the Wi-Fi HaLow channel to move away
from the jammed channel and improve the performance. When the Auto-Select Channel is
executed, the application will provide a recommended channel to the user based on an radio
frequency scan on the environment.
Trimble recommends that when using the system at a new site, use the Auto-Select Channel tool at
a low-mid range (about 10-50 meter range) and configure the Wi-Fi HaLow radio to use the
recommended channel.
Note- The Auto-Select Channel tool will only scan the channels of the currently selected Wi-Fi HaLow
mode (either High Bandwidth or Low Bandwidth).
Troubleshooting Tips
If you are already using High Bandwidth mode, and you already ran the Auto Select Channel tool,
but notice your video performance is not what you expect, try these steps:
1. Check the Received Signal Strength Indicator (RSSI)
The Received Signal Strength Indicator (RSSI) is an indicator that shows the radio signal strength at
the receiver device. Similar to your cell phone, this is displayed in the Trimble Access status bar
next to the SX12 instrument symbol.
In case of radio issues, check the radio signal bars in Trimble Access. If there is one bar, the radio
could have reached the fringe of operating range. If there are no bars, then the radio performance
