Atec Rohde-Schwarz-SMIQ Series - Manual (Page 13)

Vector Signal Generator R&S SMIQ – Specifications 13
Baseband filter
Standard
Range √ cos (α=0.35), cos (α=0.35)
√ cos (α=0.2 to 0.7), cos (α=0.2 to 0.7)
Frame structure
Burst types
Burst on/off ratio
Burst rise/fall time
Slot attenuation, selectable
1 to 6 slots user-definable for uplink and downlink
Up/Down TCH, ALL DATA, Up SHORT
>80 dB
corresponding to 3 symbols,
<123.4 µs
0 dB to 70 dB
Internal modulation data PRBS, 2 9 −1, 2 11 −1, 2 15 −1, 2 16 −1, 2 20 −1, 2 21 −1, 2 23 −1,
programmable data memory
External serial modulation data asynchronous via RS232 interface (SERDATA)
Error vector magnitude, rms <1.2%, 0.4% typ.
Adjacent-channel power, typ. values, without power
ramping
Offset 30 kHz
Offset 60 kHz
Offset 90 kHz −35 dBc
−75 dBc
−78 dBc
Digital standard PDC
Frequency
Standard
Range
to RCR STD-27
810 MHz to 826 MHz/940 MHz to 956MHz /1429 MHz
to 1453 MHz/1477 MHz to 1501 MHz
same as R&S SMIQ
Modulation π/4 DQPSK
Symbol rate
Standard
Range 21 kHz
100 Hz to 200 kHz
Baseband filter
Standard
Range √ cos (α=0.5), cos (α=0.5)
√ cos (α=0.2 to 0.7),
cos ( α=0.2 to 0.7)
Frame structure
Burst types
Burst on/off ratio
Burst rise/fall time
Slot attenuation, selectable
1 to 6 slots user-definable for uplink and downlink
TCH, SYNC, VOX, ALL DATA
>80 dB
corresponding to 2 symbols,
<95.2 µs
0 dB to 70 dB
Internal modulation data PRBS, 2 9 −1, 2 11 −1, 2 15 −1, 2 16 −1, 2 20 −1, 2 21 −1, 2 23 −1,
programmable data memory
External serial modulation data asynchronous via RS232 interface (SERDATA)
Error vector magnitude, rms <1.2%, 0.4% typ.
Adjacent-channel power, typ. values, without power
ramping
Offset 50 kHz
Offset 100 kHz −74 dBc
−78 dBc
Digital standard PHS
Frequency
Standard
Range
to RCR STD-28
1895.0 MHz to 1918.1 MHz
same as R&S SMIQ
Modulation π/4 DQPSK
Symbol rate
Standard
Range 192 kHz
100 Hz to 200 kHz
Baseband filter
Standard
Range √ cos (α=0.5), cos (α=0.5)
√ cos (α = 0.2 to 0.7), cos (α = 0.2 to 0.7)