Edimax EW-7228APn User Manual page 49

Fragment
Threshold
RTS Threshold
Beacon Interval
DTIM Period
Data Rate
Set the Fragment threshold of the wireless
radio. Please do not modify the default
value if you don't know what this does, the
default value is 2346
Set the RTS threshold of the wireless radio.
Please do not modify the default value if
you don't know what this does, the default
value is 2347
Set the beacon interval of the wireless
radio. Please do not modify the default
value if you don't know what this does, the
default value is 100
Set the DTIM period of wireless radio.
Please do not modify default value if you
don't know what it is, the default value is 3
Set the wireless data transfer rate. Since
most wireless devices will negotiate with
each other and pick a proper data transfer
rate automatically, it's not necessary to
change this value unless you know what
will happen after modification.
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