Ubiquiti Networks Rockeac - Manual (Page 16)

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Chapter 3: Wireless airOS®7 User Guide
Ubiquiti Networks, Inc.
Frequency, MHz (Available in Access Point PTP or Access
Point PTMP mode only.) The default, Auto, allows the
device to automatically select the frequency. You can
specify a frequency from the drop-down list.
Calculate EIRP Limit This option should remain enabled
so it forces the transmit output power to comply with the
regulations of the selected country. If enabled, you cannot
set EIRP above the amount allowed per regulatory domain
(different maximum output power levels and antenna
gains are allowed for each regulatory domain or country).
The available frequencies depend on the product as well
as the regulations of the selected country.
Antenna (Only applicable to the PowerBeam ac models.)
The default is the antenna included for the PowerBeam
ac model: 620 - 29 dBi (PBE-5AC-620) or 500 - 27 dBi
(PBE-5AC-500). If you are not using a dish reflector, then
select Feed only - 3 dBi.
Antenna Gain (Only applicable to devices with external
antenna connectors.) Enter the antenna gain in dBi. With
Calculate EIRP Limit enabled, Antenna Gain calculates the
TX power backoff needed to remain in compliance with
local regulations. The Antenna Gain setting complements
the Cable Loss setting; they both affect the TX power of
the device.
Cable Loss (Only applicable to devices with external
antenna connectors.) Enter the cable loss in dB. In case
you have high amounts of cable loss, you may increase
the TX power while remaining in compliance with local
regulations. The Cable Loss setting complements the
Antenna Gain setting; they both affect the TX power of the
device.
Output Power Defines the maximum average transmit
output power (in dBm) of the device. To specify the output
power, use the slider or manually enter the output power
value. The transmit power level maximum is limited
according to country regulations. (If the device has an
internal antenna, then Output Power is the output power
delivered to the internal antenna.)
Auto Adjust Distance Enabled by default. We
recommend keeping this option enabled. Every time
the station receives a data frame, it sends an ACK
(Acknowledgement) frame to the AP (if transmission errors
are absent). If the AP does not receive the ACK frame
within the set timeout, it re-sends the frame. The same
occurs when the AP receives a data frame, but the station
does not receive the ACK frame within the set timeout.
(The timeout value depends on the value of the Distance
option.) If too many data frames are re-sent (whether the
ACK timeout is too short or too long), then there is a poor
connection, and throughput performance drops.
The device has an auto-acknowledgement timeout
algorithm, which dynamically optimizes the frame
acknowledgement timeout value without user
intervention. This critical feature is required for stabilizing
long-distance, outdoor links.
If two or more stations are located at considerably
different distances from the AP they are associated with,
the distance to the farthest station should be set on the
AP side.
Distance To specify the distance value in miles (or
kilometers), use the slider or manually enter the value.
The signal strength and throughput fall off with range.
Changing the distance value will change the ACK timeout
value accordingly.
Max TX Rate Defines the maximum rate at which the
device should transmit wireless packets. The default
is Auto; the rate algorithm selects the best data rate,
depending on link quality conditions. We recommend
that you use the Auto option, especially if you are
having trouble getting connected or losing data at a
higher rate (in this case, the lower data rates will be used
automatically). To set a specific maximum rate, select
one of the following: 1x (BPSK), 2x (QPSK), 4x (16QAM),
6x (64QAM), or 8x (256QAM).
Wireless Security
In Access Point PTP or Access Point PTMP mode, configure
the wireless security settings that will be used by the
devices on your wireless network.
In Station PTP or Station PTMP mode, enter the security
settings of the AP that the device is associated with.
Security airOS 7 supports the following wireless security
methods: None and WPA2-AES. Follow the instructions for
your selected method.
None
If you want an open network without wireless security,
select None.
Note: Not using wireless security may compromise
the security of your wireless network.
WPA2-AES
To secure your wireless network, select WPA2-AES, which
is WPA2 (Wi-Fi Protected Access 2) security mode with
AES (Advanced Encryption Standard) support only. AES
is also known as CCMP (Counter Mode with Cipher Block
Chaining Message Authentication Code Protocol), which
uses the AES algorithm.