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Pilot-paging amplitude delta is the difference, in dB,

between the amplitudes of the pilot and paging

channels. Similar measurements are made for pilot-

sync delta and pilot-quick paging delta (cdma2000).

Multipath power is equivalent to the aggregate-peak

power measurement of the pilot channel analyzer.

Pilot dominance is the difference, in dB, between

the amplitudes of the strongest pilot and the second

strongest pilot.

Estimated Rho is a measure of modulation quality.

Rho is the formal measure of modulation quality

defined in IS-97, but it requires the transmitter be

in a pilot-only state. Estimated Rho is measured

with the transmitter in service, so there is no

impact on traffic.

Code domain noise floor is the averaged power of

all of the inactive channels.

Pilot delay is defined as the difference between the

time a pilot signal is received and the time it should

have been transmitted, as defined by GPS timing.

For example, a base station transmitting PN offset

0 is expected to start a new short-code pattern

synchronous with the GPS even second clock. If the

signal is received 3 chips after the GPS even second

clock, then the pilot delay is said to be 3 chips (1

chip » 0.8 microseconds). Timing offsets can be due

to both propagation delay and base station timing

problems.

Carrier frequency error is defined as the difference

between the measured carrier frequency and the

user-specified carrier frequency. The measured

carrier frequency is the frequency of the dominant

pilot signal. Carrier frequency error can be due to

both base station carrier error and doppler shift (if

moving).

The number of active traffic channels is displayed

in three different ways:

• instantaneous – number of active traffic channels

for that specific code domain measurement

• average – number of active averaged over the dura-

tion a specific pilot is dominant

• peak – the maximum number of active traffic

channels over the duration a specific pilot

is dominant

Figure 1. Code domain power

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