PTP 300 and PTP 500 Series User Guide Managing performance
phn-1115_006v000
Sep 2010
7-41
Attribute Meaning
Receive Data Rate The data rate in the receive direction, expressed in Mbps and
presented as: max, mean, min, and latest in an histogram
format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second
means. Expected data rates can be found in Data rate
cal
cul
ations on page 4-77
Aggregate Data
Rate
The sum of the data rate in the directions expressed in Mbps
and presented as: max, mean, min, and latest in an histogram
format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second
means. Expected data rates can be found in Data rate
cal
cul
ations on page 4-77.
Histogram
Measurement
Period
The time over which the system histograms were collected.
Signal Strength Ratio is an aid to debugging a link. If it has a large positive or negative
value then investigate the following potential problems:
• An antenna coaxial lead may be disconnected.
• When spatial diversity is employed, the antenna with the lower value may be
pointing in the wrong direction.
• When a dual polar antenna is deployed, the antenna may be directed using a side
lobe rather than the main lobe.
When there is a reflection from water on the link and spatial diversity is employed,
then one expects large, slow swings in Signal Strength Ratio. This indicates the
antenna system is doing exactly as intended.
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