Guralp Systems CMG-CD24 - Manual (Page 107)

Operator's Guide
4. The Wifi communications channel can normally be left at its
default. If you are deploying the system in an area where there
are many other wireless devices, you may have to either
experiment with this value to obtain reliable connections or use
a wireless scanner to identify an unused (or relatively quiet)
channel.
5. The final prompt allows you to disable or enable the security
features of the wireless interface. Systems are shipped with
security disabled in order to simplify access for DeviceInstaller.
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