User manual

Chapter 3 Basic Settings Page 33
Base Station ID (SSID)
For Base Station mode, it requires SSID for CPU clients to associate with. This wireless network
name is shared among all associated devices in your wireless network. Keep it identical on all those
devices. Note that the SSID is case-sensitive and can not exceed 32 characters.
Wireless Mode
The R2 Extender can only communicate with wireless devices of 802.11a.
Channel/Frequency
Channel varies much as the available band differs from country to country. Select a proper operating
channel in the drop-down list according to your situation. To avoid adjacent channel interference, it
is highly suggested to set separate of the 2 RF links as far as possible.
Transmit Rate
Usually “Best” is preferred. Under this rate, the R2 Extender 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.
Output Power
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 then. Usually “100%” is preferred.
Band Width
Four levels are available: 5MHz, 10MHz, 20MHz and 40MHz. Among them, 40MHz can enhance
the data rate more effectively, but will take more bandwidth, thus cause possible interference.
TDM Coordination
Stands for “Time-Division Multiplexing Technique”, this resource reservation control mechanisms
can avoid packet collisions and send the packets much more efficiently allowing for higher effective
throughput rates. This function is only available in CSMA BS mode (RF2). It is highly
recommended to enable TDM coordination when there are multiple CPEs needed to connect to the
BS in your application.
NoACK
Under TDMA mode, enabling NoACK can enhance throughput but it might result in higher error rates
in a noisy environment.
WMM
WMM (Wi-Fi Multimedia) is a subset of 802.11e. It allows wireless communication to define a priority
limit on the basis of data type, thus those time-sensitive data, like video/audio data, may own a