5
B. Wireless Configuration
Navigate to Configuration -> Wireless to access the Wireless Configuration
screen:
ESSID The wireless network name assigned to this PTP network.
Transmit Power This parameter sets the RF output power of the radio.
Increasing this value will extend the range of the PTP system. However, the
maximum available power is limited by the country of operation.
For example, in the US, the maximum operating power is limited to 23 dBm.
Frequency Allows selection of the center frequency of the RF link, based on
the region of operation and operating bandwidth. The Frequency parameter is
available on Master PTP unit only. On a Slave unit, the radio will search across
the available channels in order to find the Master.
A sample frequency list is as follows:
Frequency Bandwidth
5745 MHz
20 MHz
5765 MHz
20 MHz
5785 MHz
20 MHz
5805 MHz
20 MHz
Both Master and Slave must share the same Bandwidth setting.
Link Distance Should be set to the actual link distance. This parameter is
used to optimize the performance of the SkyWay protocol across long links.
Note that the maximum link distance at 20 and 40 MHz bandwidth is 32 and 16
miles respectively.
Streams The power of MIMO technology rests on the ability to define the
number of data streams that are carried across the multiple RF links. At all
times, the SkyWay link utilizes a 2x2 dual-chain MIMO format where 2 RF
transmit and 2 RF receive chains are enabled and active. However, these dual
chains can be used to carry 1 or 2 data streams.
In a 2 stream configuration, unique data is carried across each RF chain,
thereby greatly increasing the amount of data capacity over a non-MIMO
system. The 100 Mbps capability of the product requires that 2 streams
operation be configured.
In contrast, when increased link robustness and noise immunity is desired,
MIMO can be used in a 1 stream configuration. In this scenario, the same
information is carried across both RF chains, increasing the reliability of
reception.
It is recommended, but not required, that both Master and Slave units share
the same Modulation and Stream settings.
