E1993A Datasheet, PDF (26/40 Pages) Keysight Technologies – W-CDMA Mobile Test Application

26 | Keysight | E1963A W-CDMA Mobile Test Application - Technical Overview
Tx dynamic power measurement
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 UE under test;
measures the total power in a 3.84 MHz bandwidth centered on the active uplink center
frequency in each step period
Measurement data capture period: 667 μs
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 user specified output power
Trigger
pulse
User specified
maximum power
Step size
Step duration
Measurement range: –61 to +28 dBm/3.84 MHz
Measurement level ranging: None; user must set the test set’s receiver power control
field to manual and set the receiver power to the expected full power of the power sweep
produced by the UE
Measurement accuracy: (Calibrated against average power and within ±10 degrees
of calibration temperature; calibration must occur between 20 to 55 °C);
–– < ±1.0 dB (typically < ±0.5 dB) over 15 to 55 °C, 698 to 1000 MHz, 1400 to 1500 MHz
and 1700 to 2000 MHz
–– < ±1.0 dB (typically < ±0.55 dB) over 15 to 55 °C and 2480 to 2580 MHz
Measurement step duration (time): 20, 40, or 80 ms
Measurement step size: –90.00 to –0.01 dB
Measurement number of steps: 0 to 99
Measurement result: A graph displaying the discrete power at each power step along with
numeric power results for each step
Measurement graphical controls: Marker on/off with position, trace start step, trace span,
and return to default scale
Concurrency capabilities: Tx dynamic power measurements cannot be made concurrently
with other measurements
Calibrate function: Uses the channel power calibration function
http://wireless.keysight.com/rfcomms/refdocs/wcdma/wcdma_meas_wtdpower_desc.html