Cradlepoint IBR1100 User Manual page 35

User Manual / IBR1100/IBR1150
• 4 (2427 MHz)
• 5 (2432 MHz)
• 6 (2437 MHz)
• 7 (2442 MHz)
• 8 (2447 MHz)
• 9 (2452 MHz)
• 10 (2457 MHz)
• 11 (2462 MHz)
For 5.0 GHz, the ranges are 36 to 64 and 149 to 165.
• 36 (5180 MHz)
• 40 (5200 MHz)
• 44 (5220 MHz)
• 48 (5240 MHz)
• 149 (5745 MHz)
• 153 (5765 MHz)
• 157 (5785 MHz)
• 161 (5805 MHz)
• 165 (5825 MHz)
* - Channels listed above represent US/FCC settings. EU
users will see different settings.
Client Timeout: If the access point is not able to
communicate with the client it will disconnect it after
this timeout (in seconds).
TX Power: Normally the wireless transmitter operates
at 100% power. In some circumstances, however, there might be a need to isolate specific frequencies to a
smaller area. By reducing the power of the radio, you can prevent transmissions from reaching beyond your
corporate/home office or designated wireless area.
RTS Threshold: When an excessive number of wireless packet collisions are occurring, wireless performance
can be improved by using the RTS/CTS (Request to Send/Clear to Send) handshake protocol. The wireless
transmitter will begin to send RTS frames (and wait for CTS) when data frame size in bytes is greater than the
RTS Threshold. This setting should remain at its default value.
Fragmentation Threshold: Wireless frames can be divided into smaller units (fragments) to improve
performance in the presence of RF interference and at the limits of RF coverage. Fragmentation will occur
when frame size in bytes is greater than the Fragmentation Threshold. This setting should remain at its default
value. Setting the Fragmentation value too low may result in poor performance.
DTIM: A DTIM is a countdown informing clients of the next window for listening to broadcast and multicast
messages. When the wireless router has buffered broadcast or multicast messages for associated clients, it
sends the next DTIM with a DTIM Interval value. Wireless clients detect the beacons and awaken to receive the
broadcast and multicast messages. The default value is 1. Valid settings are between 1 and 255.
Beacon: Beacons are packets sent by a wireless router to synchronize wireless devices. Specify a Beacon
Period value between 20 and 1000 milliseconds.
Short Slot: Slot Time is the period wireless clients use in determining if the channel is free for transmission.
Enabling this value allows clients that can utilize a shorter time to do so. Disabling this option forces all
clients to use a longer backoff check and thus may reduce network throughput while reducing the number of
transmission collisions.
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