User's Manual

26 LT-9064 Rev A Altum AC 600 User Manual
country where the device is operating in. The transmit
power levels for each channel are tuned accordingly.
The country codes should match for all radios on the
network.
For US, models there are sub categories which are
explained below:
US-PTP-1 – Point to Point Mode 5.15-5.25 GHz
US-PTP-2– Point to Point Mode 5.725-5.85 GHz
NOTE: When PTP modes are selected, a box will
appear in the Interface Configuration Section labelled
PTP-MAC which the user should enter the other end
of the links MAC address (BSSID for AP). This should
be done on both ends of the link to prevent any other
radios from linking to the PTP link. The Mode must
be set to Access Point (WDS) at one end and Station
(WDS) at the other end for this feature to work.
Wireless Profile: Chooses the wireless standard used.
802.11a and 802.11g are older standards while
802.11n is a newer standard that offers higher data
rates. The choice of 802.11g+n is a combination of
802.11g and 802.11n, and operates in the 2.4 GHz
frequency band. The choice of 802.11a+n is a
combination of 802.11a and 802.11n, and operates in
the 5 GHz frequency band. The 802.11ac is the latest
standard that offers even higher data rates (up to 866
Mbps OTA) and it also operates in the 5 GHz
frequency bands
Channel Spectrum Width: Selects whether 20 MHz or
20/40 MHz bands are used. A 40 MHz band has twice
the throughput of a 20 MHz band. A smaller
bandwidth may allow more devices to be connected.
The 20/40 MHz option allows both 20 and 40 MHz
bands to be used. When the 802.11ac wireless
standard is used, the 20/40/80 MHz band can be
selected. An 80 MHz band can carry twice the amount
of data of a 40 MHz band.
Channel: Chooses the frequency channel. The default
setting of Auto is may be used. For an AP, it would
select the channel with the least interference from
other APs. For a station, Auto will automatically select
the same channel as its AP. The frequency channel
may also be manually selected. An AP and its station
must have the same channel in order to communicate.
Obey Regulatory Power: Obeys the power
regulations specified by each country. This would
satisfy the legally permitted maximum for the
equivalent isotropically radiated power (EIRP) limits of
the selected country, based on the specified Antenna
Gain (dBi). The result is that the maximum transmit
power may be less than the capability of the radio.
Once activated, a refresh of the webpage may be
needed to show the settings correctly.
Transmit Power: Chooses the transmit power of the
radio e.g. 4 dBm, 5 dBm, …, 22 dBm or Max. This is
the total power supplied to the antennas of the radio.
The maximum power also depends on the frequency
channel used.
Allowable Antenna Gain
Due to FCC restrictions the professional installer
must use antennas of similar type and gain not
exceeding the following limits.
Point to Point Operation:
5.15-5.25 GHz: Max Gain 25 dBi including cable
losses. Max EIRP of +40 dBm.
5.725-5.85 GHz: Max Gain 25 dBi including cable
losses. Maximum EIRP not limited.
2.4-2.48 GHz: Max Gain = 9 dBi including cable losses.