Technical data

106 Chapter 3
1xEV-DO Analyzer and Over Air Test
Metrics Provided by the 1xEV-DO Tx and Over Air Analyzer
Measurement
1xEV-DO Analyzer and Over Air
Test
If averaging is Off, the precentage of idle slots since the last restart is
reported.
If averaging is
Off and your analyzer is in Single mode, the precentage of
slots within the update interval is reported.
If averaging is
On, the result displayed is the percentage of idle slots
within ‘n’ capture intervals, where ‘n’ is the current average number. Once
your desired number of averages has been reached, the result reported is
the percentage of idle slots within the last ‘n’ measurement capture
intervals.
Est Pilot Rho
Pilot Rho is the measure of the modulation quality for a 1xEV-DO
transmitter. This measurement is analogous to measuring FM accuracy
and distortion in an AMPS network or EVM in a TDMA system. A Rho
value of 1.0 represents a perfect signal, indicating that all of the power is
being transmitted correctly. Pilot Rho is only measured over the 96 pilot
chips contained within every half-slot. The measurement result is blanked
out when the code domain measurement does not synchronize to the
received input signal. The number of slots over which the acquisition is
made is determined by the Capture Interval, which itself is determined by
the Meas Time setting.
Est MAC Rho