E1962B Datasheet, PDF (17/26 Pages) Agilent(Hewlett-Packard) – cdma2000/IS-95/AMPS Mobile Test Application

Code channel time and phase error
Input frequency ranges:
411 to 484 MHz
800 to 1000 MHz
1700 to 2000 MHz
Measurement chip rate: 1.2288 Mcps
Measurement method (IS-2000 R-RC3 and R-RC4 only):
measures all active reverse code channel’s time and phase
error relative to the mobile’s transmitted R-Pilot channel
Maximum input level: +37 dBm/1.23 MHz peak (5 W peak)
Input level range: −25 to +30 dBm/1.23 MHz, usable to
−50 dBm/1.23 MHz with reduced accuracy
Code channel time and phase error measurement range (for
signals with < ±6 µs static time error and < ±1 kHz frequency
error):
Code channel time error: up to ±100 ns
Code channel phase error: up to ±0.5 radians
Measurement interval: 1.042 ms (5 Walsh symbols)
Relative code channel measurement accuracy:
These tables display the accuracy versus the residual EVM of
the phone for a given number of measurement averages. These
graphs are valid for all reverse channel configurations where
each active channel has at least 10% of the total power:
Measurement residuals:
Code channel residual time error: ±3 ns, typically ±16 ns at
−50 dBm/1.23 MHz
Code channel residual phase error: ±7 milli-radians, typically
±26 milli-radians at −50 dBm/1.23 MHz
Graphical results:
Code channel time error graph: displays the relative time error in
all 15 Walsh coded channels (16 bit) for both the I channel and
the Q channel relative to the R-Pilot channel; red bars indicate
time error in each detected active channel
Code channel phase error graph: displays the relative phase error
in all 15 Walsh coded channels (16 bit) for both the I channel
and the Q channel relative to the R-Pilot channel; red bards
indicate phase error in each detected active channel
Concurrency capabilities: code channel time and phase error
measurements can be made concurrently with all CDMA
measurements that support concurrency
Pass/fail limits: settable with default value set to the IS-98D
limits of ±10 ns for code channel time error and ±0.15 radians
for code channel phase error
Other measurement results: pass/fail for each graph
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