Motorola PTP 800, Руководство пользователя

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User Guide: PTP 800 Licensed Ethernet Microwave Managing performance
phn-1478_005v000
Apr 2010
6-57
Table 6-21 System Statistics and Counters attributes
Attribute Meaning
System Statistics
Transmit Power The maximum, mean, minimum and latest measurements
of Transmit Power.
Receive Power The maximum, mean, minimum and latest measurements
of Receive Power.
Vector Error The maximum, mean, minimum and latest measurements
of Vector Error.
Normalized Mean Square Vector Error is a measure of
quality for the received signal after all corrections made
by the demodulator. The value is generally in the range
from -3 dB to -35 dB. A more negative number indicates a
higher quality signal.
Link Loss The maximum, mean, minimum and latest measurements
of Link Loss.
Link Loss is a measurement of the loss in signal level as
the radio wave propagates between the antennas
installed at each end of the link. It is determined by
measurement of the receive level, the transmit power of
the remote end and the antenna gains and feeder losses
at each end of the link.
The Link Loss is therefore only accurate if the correct
antenna gains and feeder losses have been configured at
both ends of the link.
Link Loss (dB) = Remote Transmit Power (dBm) - Remote
Feeder Loss (dB) + Remote Antenna Gain (dBi) + Local
Antenna Gain (dBi) - Local Feeder Loss (dB) - Local
Receive Power (dBm).
Data Port Counters
Ethernet Data Tx
Frames Count of Ethernet frames transmitted at the data port.
Ethernet Data Rx
Frames Count of Ethernet frames received at the data port.
Management Port
Counters