Atec Rohde-Schwarz-SMIQ Series - Manual (Page 12)

12 Vector Signal Generator R&S SMIQ – Specifications
GMSK
Phase error, rms value
Phase error, peak value
8PSK EDGE
Error vector magnitude, rms
<1°, 0.3° typ.
<3°, 1° typ.
<1.2%, 0.6% typ.
Power density spectrum, typ. values (standard, resolution bandwidth 30 kHz, without power ramping)
Offset 200 kHz
Offset 400 kHz
Offset 600 kHz −34 dB
−70 dB
−78 dB
Digital standard DECT
Frequency
Standard
Range
to ETS300175-2 and ETS300176-1
1880 MHz to 1900 MHz
same as R&S SMIQ
Modulation
Deviation with GFSK
Standard
Range
GFSK (standard), π/4 DQPSK
288 kHz
(0.1 to 1) x f
symb
Symbol rate
Standard
Range with GFSK
Range with
π/4 DQPSK
1152000 Hz
100 Hz to 1200 kHz
100 Hz to 1200 kHz
Baseband filter
Standard
Range Gauss, B x T = 0.5
Gauss, B x T = 0.2 to 0.7
√ cos (α = 0.2 to 0.7), cos (α = 0.2 to 0.7)
Frame structure
Slot types
Burst on/off ratio
Burst rise/fall time
Slot attenuation, selectable
1 to 12 slots of 24 slots user-definable
FULL (basic), DOUBLE (high capacity), ALL DATA
>80 dB
corresponding to 2 symbols,
<10 µs
0 dB to 70 dB
Internal modulation data PRBS, 2 9 −1, 2 15 −1, 2 16 −1, 2 20 −1, 2 21 −1, 2 23 −1,
programmable data memory
Deviation error, rms <1.3%
Special functions
Timing adjustment simulation
Range
Jitter simulation
Range
Slot timing shift
Range
Selectable preamble
Response during ramp-up
lengthening (+) or shortening ( −) of every 35th frame
−4 bit to +4 bit (resolution 1 bit)
time lead for even-numbered frames
0 bit to +4 bit (resolution 1 bit)
time shifting of a single slot
−9 bit to +9 bit (resolution 1 bit)
normal or prolonged
modulated or CW
Digital standard NADC
Frequency
Standard
Range
to IS-54 and IS-136
824 MHz to 894 MHz/1850 MHz to 2000 MHz
same as R&S SMIQ
Modulation π/4 DQPSK
Symbol rate
Standard
Range 24.300 kHz
100 Hz to 200 kHz