- Wireless Ethernet Bridge USER MANUALTrangoLINK-45
Configuration MU Autoscan Feature Description
Trango Broadband Wireless — TrangoLINK-45 page 26
In this example the user sets the power to 19dBm and the speed to 24 Mbps:
#> power 19
Execution in progress...
.
19 dBm (-4..19)
Success.
#> speed 24
24 Mbps
Success.
#>
MU Autoscan Feature Description
This feature allows the RU to actively search all channels and polarizations for its peer MU in the event of a
disassociation. This feature is useful if the user frequently changes the channel/polarization of the MU . If enabled, the
autoscanmu routine in the RU performs a search for the peer MU by actively scanning all available channels and
polarizations. NOTE: Autoscanning is always active when operating on DFS channels.
Notes regarding the autoscanmu feature:
• The RU will not activate the autoscan process after first 60 seconds of turning on opmode.
• The RU will start the auto scan process If RU loses association for more than 10 seconds,.
• The whole process will scan ALL (DFS and non DFS) available frequencies and polarizations in channel tables.
• For each frequency, radio will survey both polarizations, H and V. It will record the following information:
• association
• average RSSI of receiving P5055M packets
• After scanning all available frequencies in channel plan, the radio will select the channel based on the strongest
average RSSI for receiving packets.
• If no channel is selected after completing the cycle, the process will start again.
IMPORTANT NOTE FOR -EU MODELS:
The RF transmit power limits are lower for the lower (5.26 to 5.35 GHz) band than the upper (5.5 to 5.7 GHz
band) by 7 dB.
It is possible that after a radar event occurs on a link operating in the upper band, the MU may choose a channel
in the lower band. The max transmit power will be reduced on both ends of the link by 7 dB. If the link budget
does not support this reduced transmit power, the link may not re-establish or may re-establish at a much lower
speed.
It is recommended that fade margins greater than 10 dB always be used to prevent this.
Example:
#> autoscanmu on
Success.
#>