E1987A Datasheet, PDF (23/27 Pages) Keysight Technologies – cdma2000/IS-95/AMPS

23 | Keysight | E1962B cdma2000/IS-95/AMPS Mobile Test Application - Technical Overview
CDMA analyzer (continued)
Tx dynamic power measurement
Input frequency ranges 411 to 420 MHz
450 to 484 MHz
824 to 934 MHz
1700 to 1980 MHz
Measurement method
Captures a user-defined trace consisting of
20, 40, or 80 ms duration power steps with
user-defined step size produced by a test mode
in the mobile station under test; measures the
total power in a 1.23 MHz bandwidth centered
on the active reverse channel center frequency
in each step period
Measurement data
capture period
1.25 ms
Measurement trigger
Tx signal output by the mobile station must
provide a pulse (off-on-off) followed by the
stepped power burst beginning at the us-
er-specified output power
CDMA analyzer (continued)
Tx dynamic power measurement (continued)
Maximum input level +37 dBm/1.23 MHz peak (5 W peak)
Measurement range
Measurement range: −61 to +30 dBm, usable to
< −69 dBm/ 1.23 MHz with reduced accuracy
Measurement level
ranging
None, user must set the test set’s receiver pow-
er control field to manual and set the receiver
power to the expected full power of the power
sweep produced by the mobile station
Measurement accuracy
< ± 1 dB 15 to 55 °C, typically < ± 0.5 dB (cali-
brated against average power and within
± 10 degrees of calibration temperature; cali-
bration must occur between 20 to 55 °C)
Measurement resolution 0.01 dBm/1.23 MHz
Measurement step
duration (time)
20, 40, or 80 ms
Measurement step size −0.01 to −90.00 dB
Measurement number 0 to 99
of steps
Measurement result
A graph displaying the discrete power at each
step along with numeric power results for each
step
Measurement graphical Marker on/off with position, trace start step,
controls
trace span, and return to default scale
Concurrency capabilities None
Calibrate function
Uses the channel power calibration function