Ubiquiti Networks airFibe24 - Manual (Page 27)

24
Chapter 5: Wireless Tab airFiber ® AF24 User Guide
Ubiquiti Networks, Inc.
RX Gain Select the appropriate gain for your RX antenna:
High (default) or Low. If the link is very short or being
tested, select Low, so your signal does not get distorted.
Note: Minimum link distance is approximately 100 m
(328 ft).
For links between 100 m (328 ft) and 800 m (2,625 ft):
• Target -40 dBm.
• Decrease RX Gain to overcome overload condition ( ).
• For short ranges or strong signal conditions, adjust the
power to be 3-5 dB below overload condition ( ).
• Decrease RX Gain first.
• Never mitigate overload condition ( ) by misaligning
antennas.
Link Distance RX Gain Setting
Approximate
TX Power Setting
d > 1 km
(d > 3,281 ft)
High > 25 dBm
0.5 km < d < 1 km
(1,640 ft < d < 3,281 ft)
Low 19-25 dBm
0.25 km < d < 0.5 km
(820 ft < d < 1,640 ft)
Low 12-18 dBm
0.1 km < d < 0.25 km
(328 ft < d < 820 ft)
Low 3-11 dBm
Wireless Security
airFiber uses 128-bit, AES (Advanced Encryption Standard)
encryption at all times.
Key Type Specifies the character format.
• HEX By default, this option uses hexadecimal
characters. 0-9, A-F, or a-f are valid characters.
• ASCII ASCII uses the standard English alphabet and
numeric characters (0-9, A-Z, or a-z).
Key Select the format of the MAC address.
• HEX Enter 16 bytes (eight, 16-bit HEX values). You can
omit zeroes and use colons, similar to the IPv6 format.
The default is:
0000:0000:0000:0000:0000:0000:0000:0000.
Note: The airFiber Configuration Interface
supports IPv6 formats excluding dotted quad and
“::” (double-colon) notation.
• ASCII Enter a combination of alphanumeric characters.
Using 128-bit, SHA1 (Secure Hash Algorithm 1), airFiber
AF24 hashes the ASCII key to create a 128-bit key for AES.