Advantech IEEE 802.11a/n Wireless Access Point/ Client Bridge User Manual page 35

bonding that allows EKI-6331AN to use two channels at once. Two options are available: Upper
Channel and Lower Channel.
Channel Mode
4 levels are available: 40MHz, 20MHz, 10MHz and 5MHz. 40MHz can enhance data throughput,
but it takes more bandwidth, thus it might cause potential interference.
Antenna
By default, EKI-6331AN uses its built-in antenna for directional transmission; however, if you
prefer to use an external antenna for your case-dependent applications, you can switch from
"Internal (16 dBi)" to "SMA Connector".
When SMA Connector is selected, an Antenna Gain bar will appear to allow you specify the gain
of the external antenna. The antenna gain calculates the TX power back off needed to remain in
compliance with regulations.
Warning:
You are able to choose "SMA Connector" only from the WEB UI after you have
physically installed the external antenna; otherwise, it might damage the unit itself.
Maximum Output Power (per chain):
Specify the signal transmission power. The higher the output power is, the wider the signal can
cover, but the power consumption will be greater accordingly.
Note:
The output power here is counted from the RF single chain only not including the 16dBi
internal antenna.
The maximum output power will vary depending on the country selected in order to
comply with the local regulation.
You are able to choose "SMA Connector" only when you have well done installing the
external antenna; otherwise, it might damage EKI-6331AN itself.
Data Rate
Usually "Auto" is preferred. Under this rate, EKI-6331AN will automatically select the highest
available rate to transmit. In some cases, however, like where there is no great demand for speed,
you can have a relatively-low transmit rate for compromise of a long distance.
EKI-6331AN_User Manual
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