GE MDS Mercury Series, Справочное руководство

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112 Mercury Reference Manual 05-4446A01, Rev. C
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Average SNR
—Shows average signal-to-noise-ratio (SNR) of
received signals, displayed in dB. This is a measurement of the
quality of the incoming signal. It is possible for incoming sig-
nals to be strong, yet be affected by interference or other noise,
resulting in a low SNR. Use this parameter to help determine the
actual quality of signals.
•
Radio Details
—This selection presents a screen ( Figure 3-85 )
showing key operating details of the transceiver.
Invisible place holder
Figure 3-85. Radio Details Menu
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RSSI
—Shows received signal strength indication (RSSI) in
dBm.
•
SNR
—Shows signal-to-noise ratio (SNR) in dB.
•
TX Frequency Offset
—Shows the RF carrier shift of the Remote’s
transmitter, measured in Hertz (Hz). The transmitted frequency
is continually reviewed and adjusted to agree with what the AP
expects to see. This optimization results in more efficient oper-
ation, corrects for doppler shift, and results in higher throughput
between AP and Remote stations.
•
RX Frequency Offset
—This is a measurement of how far in fre-
quency the Remote’s receiver has shifted (in Hz) to accommo-
date the incoming signal from the AP.
•
Total FEC Count
—This parameter shows the total number of For-
ward Error Correction (FEC) blocks handled by the radio.
•
Corrected FEC Count
—Displays the number of errored blocks
corrected with FEC by the radio.
•
Uncorrected FEC Count
—Shows the number of errored blocks that
can’t be corrected with FEC by the radio.