E1969A Datasheet, PDF (13/19 Pages) Keysight Technologies – TD-SCDMA_GSM Fast Switch Test Application

13 | Keysight | TD-SCDMA_GSM Fast Switch Test Application - Technical Overview
Measurements Technical Specifications
Transmitter measurements continued
Spectrum emission mask (SEM)
Measurement method: A relative measurement of the out-of-channel emissions to the
in-channel power. The in-channel power is measured after filtering the signal with α =
0.22, root-raised cosine (RRC) filter. The out-of-channel emissions are measured using
a Gaussian filter with either in a 30 kHz or 1 MHz noise bandwidth. The out-of-channel
power applies to frequencies that are between 0.8 and 4.0 MHz away from the center
carrier frequency
Measurement level range: +5 to +28 dBm/1.28 MHz; measured signal level is expected
within ±9 dB of the expected power and has a < 10.0 dB crest factor
Frequency capture range: –20 to +20 kHz from the expected measurement receiver
frequency for TD-SCDMA channel type; –2 to +2 KHz from the expected measurement
receiver frequency for HSDPA channel type
Measurement accuracy (at ±10 °C from the calibration temperature): < +1.5 dB (typically
+0.8 dB) for the following offsets
Frequency offsets
0.8 to 1.8 MHz
1.8 to 2.4 MHz
2.4 to 4.0 MHz
Levels (dBc)
{ [ ] } ^{–35 - 14 x}
∆f
MHz
– 0.8
{ [ ] } ^{–49 - 17 x}
∆f
MHz
– 1.8
-44
Meas BW
30 kHz
30 kHz
1 MHz
Timing capture range: –25 to +25 chips from the measurement trigger
Measurement interval: 1 timeslot excluding the guard period, 662.5 µs
Measurement triggers: Auto, RF rise, protocol, immediate, and external
Temperature range: +15 to +55 °C
Occupied bandwidth (OBW)
Measurement method: The measure of bandwidth containing a specified percentage
of the total integrated power of the transmitted spectrum, centered on the assigned
channel frequency
Measurement level range: +5 to +28 dBm/1.28 MHz; measured signal level is expected
within ±9 dB of the expected power and has a < 10.0 dB crest factor
Frequency capture range: –20 to +20 kHz from the expected measurement receiver
frequency for TD-SCDMA channel type; –2 to +2 kHz from the expected measurement
receiver frequency for HSDPA channel type
Timing capture range: –25 to +25 chips from the measurement trigger
Measurement interval: 1 timeslot excluding the guard period, 662.5 µs
Measurement triggers: Auto, RF rise, protocol, immediate, and external
Measurement accuracy (at ±10 °C from the calibration temperature): < ±30 kHz, typically
< ±10 kHz
Temperature range: +15 to +55 °C