E1968A Datasheet, PDF (14/22 Pages) Keysight Technologies – GSM/GPRS/EGPRS Test Application

14 | Keysight | E1968A GSM/GPRS/EGPRS Test Application - Technical Overview
Supplemental characteristics
Supplemental
characteristics
Results are provided for signals at the test set’s
RF IN/OUT port for transmit power within –10
and +5 dB of expected power
Typical measurement accuracy for GMSK transmit power
at RF IN/OUT port:
Accuracy (dBm)
< ± 0.10
< ± 0.11
Frequency (MHz)
700 to 800
810 to 960
450 to 496
1700 to 1990
Timeslot
Single slot
< ± 0.14
< ± 0.15
700 to 800
810 to 960
450 to 496
1700 to 1990
Multislot at the same
level
< ± 0.29
< ± 0.30
700 to 800
810 to 960
450 to 496
1700 to 1990
Multislot at different
levels
Typical measurement accuracy for 8PSK/16QAM burst
power at RF IN/OUT port:
Accuracy (dBm)
< ± 0.14
< ± 0.15
< ± 0.17
< ± 0.17
< ± 0.33
< ± 0.34
Frequency (MHz)
700 to 800
810 to 960
450 to 496
1700 to 1990
700 to 800
810 to 960
450 to 496
1700 to 1990
700 to 800
810 to 960
450 to 496
1700 to 1990
Timeslot
Single slot
Multislot at the same
level
Multislot at different
levels
Typical measurement accuracy when RF OUT ONLY port
is selected for signal generation (in addition to typical
measurement accuracy at RF IN/OUT port):
Accuracy (dBm)
< ± 0.01
< ± 0.04
Frequency (MHz)
450 to 496
700 to 800
810 to 960
1700 to 1990
Typical measurement
repeatability
< ±0.05 dB
Measurement resolution 0.01 dB
EGPRS multislot-tolerant transmit power measurement
Types of signals
measured
Multislot input signal
conditions
Normal GMSK and 8PSK/16QAM bursts sent as
EGPRS signals
≤ 30 dB difference in power level between
adjacent timeslots
Multislot signal
Measurement of one user-specified timeslot
measurement capability transmitted as a single timeslot or two adjacent
timeslots
Frequency capture range Signal must be within ± 1 kHz of test set’s
expected frequency for warranted performance
Minimum input level
For warranted performance, signal at test set’s
RF IN/OUT must have transmit power
≥ –25 dBm for GMSK transmit power or 8PSK
burst power, and
≥ –20 dBm for 8PSK/16QAM estimated carrier
power
Measurement accuracy for GMSK transmit power or
8PSK/16QAM burst power at RF IN/OUT port between
+20 and +55 °C:
Accuracy (dBm)
< ± 0.32
< ± 0.34
< ± 0.57
< ± 0.59
Frequency (MHz)
700 to 800
810 to 960
450 to 496
1700 to 1990
700 to 800
810 to 960
450 to 496
1700 to 1990
Timeslot
Single slot and multi-
slot at the same level
Multislot at different
levels
Measurement accuracy for 8PSK/16QAM estimated carri-
er power at RF IN/OUT port between + 20 and +55 °C:
Accuracy (dBm)
Frequency (MHz) Timeslot
< ± 0.40
< ± 0.42
700 to 800
810 to 960
450 to 496
1700 to 1990
Single slot and multi-
slot at the same level
< ± 0.65
< ± 0.67
700 to 800
810 to 960
450 to 496
1700 to 1990
Multislot at different
levels
Note: 8PSK estimated carrier power accuracy specifications above can be met
when signal quality is not degraded.
Measurement accuracy when RF OUT ONLY port is
selected for signal generation (in addition to measurement
accuracy at RF IN/OUT port):
Accuracy (dBm)
< ± 0.01
< ± 0.04
Frequency (MHz)
450 to 496
700 to 800
810 to 960
1700 to 1990
VSWR at RF IN/OUT
< 1.14 : 1 for 450 to 496 MHz and 700 to
960 MHz, < 1.2 : 1 for 1.7 to 1.99 GHz
Trigger sources
RF rise, protocol, immediate, auto, external
Trigger delay
Settable between ± 2.31 ms
Burst synchronization Midamble
Numerical result
GMSK transmit power, 8PSK burst power, 8PSK
estimated carrier power, 16QAM burst power,
16QAM estimated carrier power
Multi-measurement
capabilities
1 to 999 bursts; minimum, maximum, average,
and standard deviation results
Concurrency capabilities EGPRS multislot-tolerant transmit power
measurements can be made concurrently with
all other measurements
Supplemental characteristics
Extended amplitude
range
Results are provided for signals at the test set’s
RF IN/OUT port for transmit power within
–10 and +5 dB of expected power
Typical measurement accuracy for GMSK transmit power
or 8PSK burst power at RF IN/OUT port:
Accuracy (dBm)
< ± 0.15
< ± 0.16
< ± 0.35
< ± 0.36
Frequency (MHz)
700 to 800
810 to 960
450 to 496
1700 to 1990
700 to 800
810 to 960
450 to 496
1700 to 1990
Timeslot
Single slot and multi-
slot at the same level
Multislot at different
levels
Typical measurement
repeatability
< ±0.05 dB
Measurement resolution 0.01 dB