Motorola PTP 400 Series User Manual
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Transmit Power:
Transmit power histogram
is expressed in dBm and presented as: max,
mean, min, and latest.
Receive Power:
Receive power histogram is expressed in dBm and presented as: max,
mean, min, and latest.
Vector Error:
The vector error measurement compares the received signal’s In phase /
Quadrature (IQ) modulation characteristics to an ideal signal to determine the composite error
vector magnitude. The results are stored in a histogram and expressed in dB and presented
as: max, mean, min and latest. The expected range for Vector Error would be approximately
0dB (NLOS link operating at sensitivity limit on BPSK ½) to –29dB (short LOS link running
64QAM 7/8).
Link Loss:
The link loss is the total attenuation of the wireless signal between the two
point-to-point units.
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All histograms are calculated over a one hour period. If the equipment has been running for
less than one hour then the histograms are calculated over the current elapsed time.
The data used to compute the histogram statistics can be downloaded in an ASCII comma
separated value (CSV) format via the diagnostics CSV Download page, see section 8.3.14
“
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Diagnostics