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This section is intended to provide the main information about the wireless unit operation.
The Dashboard displays a read-only summary of the current link status information, local and remote device signal strength, capacity for downlink and uplink, current values of the basic configuration settings and wired network status.
The “Radio” tab displays the current settings of the wireless connection, as well as the link load in the uplink and downlink directions.
In the "Wired interface" tab, the wired Combo interface status can be monitored (copper media is for the Ethernet connection, fiber media indicates that device is connected via SFP), as well as duplex mode and traffic load for reception and transmission. The wired interface statistic is available on the right side, it can be reset by the "Clear counters" button.
| Parametr | Description |
|---|---|
| Runt packets | Packets less than 64 bytes in size |
| Oversize packets | Packets larger than 9038 bytes |
| FCS errors | Packets dropped due to checksum mismatch |
| Port overflow errors | Packets dropped due to port buffer overflow |
Modulation and coding scheme
The modulation and coding schemes are selected independently for each channel (uplink and downlink). Current modulation for each channel is displayed in the MCS subsection.
Received signal strength indicator
The RSSI indicator displays the received signal level for each channel (uplink and downlink) and both polarizations. Available values:
- -90...-80 dBm - close to the receiver sensitivity level, only the lowest modulations are available.
- -80...-60 dBm - average input range.
- -60...-40 dBm - the recommended range for achieving best performance.
- >-40 dBm - input signal level is too high.
EVM
Error vector magnitude - indicator of the measured input signal quality, telling how far are the received constellation symbols compared to the ideal symbols of the constellation. The parameter value must be as high as possible in absolute value.
Each MCS corresponds with certain EVM value. To achieve the best link quality, try to get EVM to values less than -21 dB.
Retries and Frame loss
Retried and lost packets need also to be tracked. Retries should tend to zero, link with the retries value more than 5% should not be allowed to operation.